Mass refactoring

This commit is contained in:
erogol
2020-07-17 11:16:05 +02:00
parent 3bc38517aa
commit 82dd465365
148 changed files with 3698 additions and 13887 deletions
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import librosa
import soundfile as sf
import numpy as np
import scipy.io
import scipy.signal
from TTS.utils.data import StandardScaler
class AudioProcessor(object):
def __init__(self,
sample_rate=None,
num_mels=None,
min_level_db=None,
frame_shift_ms=None,
frame_length_ms=None,
hop_length=None,
win_length=None,
ref_level_db=None,
fft_size=1024,
power=None,
preemphasis=0.0,
signal_norm=None,
symmetric_norm=None,
max_norm=None,
mel_fmin=None,
mel_fmax=None,
spec_gain=20,
stft_pad_mode='reflect',
clip_norm=True,
griffin_lim_iters=None,
do_trim_silence=False,
trim_db=60,
do_sound_norm=False,
stats_path=None,
**_):
print(" > Setting up Audio Processor...")
# setup class attributed
self.sample_rate = sample_rate
self.num_mels = num_mels
self.min_level_db = min_level_db or 0
self.frame_shift_ms = frame_shift_ms
self.frame_length_ms = frame_length_ms
self.ref_level_db = ref_level_db
self.fft_size = fft_size
self.power = power
self.preemphasis = preemphasis
self.griffin_lim_iters = griffin_lim_iters
self.signal_norm = signal_norm
self.symmetric_norm = symmetric_norm
self.mel_fmin = mel_fmin or 0
self.mel_fmax = mel_fmax
self.spec_gain = float(spec_gain)
self.stft_pad_mode = 'reflect'
self.max_norm = 1.0 if max_norm is None else float(max_norm)
self.clip_norm = clip_norm
self.do_trim_silence = do_trim_silence
self.trim_db = trim_db
self.do_sound_norm = do_sound_norm
self.stats_path = stats_path
# setup stft parameters
if hop_length is None:
# compute stft parameters from given time values
self.hop_length, self.win_length = self._stft_parameters()
else:
# use stft parameters from config file
self.hop_length = hop_length
self.win_length = win_length
assert min_level_db != 0.0, " [!] min_level_db is 0"
assert self.win_length <= self.fft_size, " [!] win_length cannot be larger than fft_size"
members = vars(self)
for key, value in members.items():
print(" | > {}:{}".format(key, value))
# create spectrogram utils
self.mel_basis = self._build_mel_basis()
self.inv_mel_basis = np.linalg.pinv(self._build_mel_basis())
# setup scaler
if stats_path:
mel_mean, mel_std, linear_mean, linear_std, _ = self.load_stats(stats_path)
self.setup_scaler(mel_mean, mel_std, linear_mean, linear_std)
self.signal_norm = True
self.max_norm = None
self.clip_norm = None
self.symmetric_norm = None
### setting up the parameters ###
def _build_mel_basis(self, ):
if self.mel_fmax is not None:
assert self.mel_fmax <= self.sample_rate // 2
return librosa.filters.mel(
self.sample_rate,
self.fft_size,
n_mels=self.num_mels,
fmin=self.mel_fmin,
fmax=self.mel_fmax)
def _stft_parameters(self, ):
"""Compute necessary stft parameters with given time values"""
factor = self.frame_length_ms / self.frame_shift_ms
assert (factor).is_integer(), " [!] frame_shift_ms should divide frame_length_ms"
hop_length = int(self.frame_shift_ms / 1000.0 * self.sample_rate)
win_length = int(hop_length * factor)
return hop_length, win_length
### normalization ###
def _normalize(self, S):
"""Put values in [0, self.max_norm] or [-self.max_norm, self.max_norm]"""
#pylint: disable=no-else-return
S = S.copy()
if self.signal_norm:
# mean-var scaling
if hasattr(self, 'mel_scaler'):
if S.shape[0] == self.num_mels:
return self.mel_scaler.transform(S.T).T
elif S.shape[0] == self.fft_size / 2:
return self.linear_scaler.transform(S.T).T
else:
raise RuntimeError(' [!] Mean-Var stats does not match the given feature dimensions.')
# range normalization
S -= self.ref_level_db # discard certain range of DB assuming it is air noise
S_norm = ((S - self.min_level_db) / (-self.min_level_db))
if self.symmetric_norm:
S_norm = ((2 * self.max_norm) * S_norm) - self.max_norm
if self.clip_norm:
S_norm = np.clip(S_norm, -self.max_norm, self.max_norm)
return S_norm
else:
S_norm = self.max_norm * S_norm
if self.clip_norm:
S_norm = np.clip(S_norm, 0, self.max_norm)
return S_norm
else:
return S
def _denormalize(self, S):
"""denormalize values"""
#pylint: disable=no-else-return
S_denorm = S.copy()
if self.signal_norm:
# mean-var scaling
if hasattr(self, 'mel_scaler'):
if S_denorm.shape[0] == self.num_mels:
return self.mel_scaler.inverse_transform(S_denorm.T).T
elif S_denorm.shape[0] == self.fft_size / 2:
return self.linear_scaler.inverse_transform(S_denorm.T).T
else:
raise RuntimeError(' [!] Mean-Var stats does not match the given feature dimensions.')
if self.symmetric_norm:
if self.clip_norm:
S_denorm = np.clip(S_denorm, -self.max_norm, self.max_norm)
S_denorm = ((S_denorm + self.max_norm) * -self.min_level_db / (2 * self.max_norm)) + self.min_level_db
return S_denorm + self.ref_level_db
else:
if self.clip_norm:
S_denorm = np.clip(S_denorm, 0, self.max_norm)
S_denorm = (S_denorm * -self.min_level_db /
self.max_norm) + self.min_level_db
return S_denorm + self.ref_level_db
else:
return S_denorm
### Mean-STD scaling ###
def load_stats(self, stats_path):
stats = np.load(stats_path, allow_pickle=True).item() #pylint: disable=unexpected-keyword-arg
mel_mean = stats['mel_mean']
mel_std = stats['mel_std']
linear_mean = stats['linear_mean']
linear_std = stats['linear_std']
stats_config = stats['audio_config']
# check all audio parameters used for computing stats
skip_parameters = ['griffin_lim_iters', 'stats_path', 'do_trim_silence', 'ref_level_db', 'power']
for key in stats_config.keys():
if key in skip_parameters:
continue
assert stats_config[key] == self.__dict__[key],\
f" [!] Audio param {key} does not match the value used for computing mean-var stats. {stats_config[key]} vs {self.__dict__[key]}"
return mel_mean, mel_std, linear_mean, linear_std, stats_config
# pylint: disable=attribute-defined-outside-init
def setup_scaler(self, mel_mean, mel_std, linear_mean, linear_std):
self.mel_scaler = StandardScaler()
self.mel_scaler.set_stats(mel_mean, mel_std)
self.linear_scaler = StandardScaler()
self.linear_scaler.set_stats(linear_mean, linear_std)
### DB and AMP conversion ###
# pylint: disable=no-self-use
def _amp_to_db(self, x):
return self.spec_gain * np.log10(np.maximum(1e-5, x))
# pylint: disable=no-self-use
def _db_to_amp(self, x):
return np.power(10.0, x / self.spec_gain)
### Preemphasis ###
def apply_preemphasis(self, x):
if self.preemphasis == 0:
raise RuntimeError(" [!] Preemphasis is set 0.0.")
return scipy.signal.lfilter([1, -self.preemphasis], [1], x)
def apply_inv_preemphasis(self, x):
if self.preemphasis == 0:
raise RuntimeError(" [!] Preemphasis is set 0.0.")
return scipy.signal.lfilter([1], [1, -self.preemphasis], x)
### SPECTROGRAMs ###
def _linear_to_mel(self, spectrogram):
return np.dot(self.mel_basis, spectrogram)
def _mel_to_linear(self, mel_spec):
return np.maximum(1e-10, np.dot(self.inv_mel_basis, mel_spec))
def spectrogram(self, y):
if self.preemphasis != 0:
D = self._stft(self.apply_preemphasis(y))
else:
D = self._stft(y)
S = self._amp_to_db(np.abs(D))
return self._normalize(S)
def melspectrogram(self, y):
if self.preemphasis != 0:
D = self._stft(self.apply_preemphasis(y))
else:
D = self._stft(y)
S = self._amp_to_db(self._linear_to_mel(np.abs(D)))
return self._normalize(S)
def inv_spectrogram(self, spectrogram):
"""Converts spectrogram to waveform using librosa"""
S = self._denormalize(spectrogram)
S = self._db_to_amp(S)
# Reconstruct phase
if self.preemphasis != 0:
return self.apply_inv_preemphasis(self._griffin_lim(S**self.power))
return self._griffin_lim(S**self.power)
def inv_melspectrogram(self, mel_spectrogram):
'''Converts melspectrogram to waveform using librosa'''
D = self._denormalize(mel_spectrogram)
S = self._db_to_amp(D)
S = self._mel_to_linear(S) # Convert back to linear
if self.preemphasis != 0:
return self.apply_inv_preemphasis(self._griffin_lim(S**self.power))
return self._griffin_lim(S**self.power)
def out_linear_to_mel(self, linear_spec):
S = self._denormalize(linear_spec)
S = self._db_to_amp(S)
S = self._linear_to_mel(np.abs(S))
S = self._amp_to_db(S)
mel = self._normalize(S)
return mel
### STFT and ISTFT ###
def _stft(self, y):
return librosa.stft(
y=y,
n_fft=self.fft_size,
hop_length=self.hop_length,
win_length=self.win_length,
pad_mode=self.stft_pad_mode,
)
def _istft(self, y):
return librosa.istft(
y, hop_length=self.hop_length, win_length=self.win_length)
def _griffin_lim(self, S):
angles = np.exp(2j * np.pi * np.random.rand(*S.shape))
S_complex = np.abs(S).astype(np.complex)
y = self._istft(S_complex * angles)
for _ in range(self.griffin_lim_iters):
angles = np.exp(1j * np.angle(self._stft(y)))
y = self._istft(S_complex * angles)
return y
def compute_stft_paddings(self, x, pad_sides=1):
'''compute right padding (final frame) or both sides padding (first and final frames)
'''
assert pad_sides in (1, 2)
pad = (x.shape[0] // self.hop_length + 1) * self.hop_length - x.shape[0]
if pad_sides == 1:
return 0, pad
return pad // 2, pad // 2 + pad % 2
### Audio Processing ###
def find_endpoint(self, wav, threshold_db=-40, min_silence_sec=0.8):
window_length = int(self.sample_rate * min_silence_sec)
hop_length = int(window_length / 4)
threshold = self._db_to_amp(threshold_db)
for x in range(hop_length, len(wav) - window_length, hop_length):
if np.max(wav[x:x + window_length]) < threshold:
return x + hop_length
return len(wav)
def trim_silence(self, wav):
""" Trim silent parts with a threshold and 0.01 sec margin """
margin = int(self.sample_rate * 0.01)
wav = wav[margin:-margin]
return librosa.effects.trim(
wav, top_db=self.trim_db, frame_length=self.win_length, hop_length=self.hop_length)[0]
@staticmethod
def sound_norm(x):
return x / abs(x).max() * 0.9
### save and load ###
def load_wav(self, filename, sr=None):
if sr is None:
x, sr = sf.read(filename)
else:
x, sr = librosa.load(filename, sr=sr)
if self.do_trim_silence:
try:
x = self.trim_silence(x)
except ValueError:
print(f' [!] File cannot be trimmed for silence - {filename}')
assert self.sample_rate == sr, "%s vs %s"%(self.sample_rate, sr)
if self.do_sound_norm:
x = self.sound_norm(x)
return x
def save_wav(self, wav, path):
wav_norm = wav * (32767 / max(0.01, np.max(np.abs(wav))))
scipy.io.wavfile.write(path, self.sample_rate, wav_norm.astype(np.int16))
@staticmethod
def mulaw_encode(wav, qc):
mu = 2 ** qc - 1
# wav_abs = np.minimum(np.abs(wav), 1.0)
signal = np.sign(wav) * np.log(1 + mu * np.abs(wav)) / np.log(1. + mu)
# Quantize signal to the specified number of levels.
signal = (signal + 1) / 2 * mu + 0.5
return np.floor(signal,)
@staticmethod
def mulaw_decode(wav, qc):
"""Recovers waveform from quantized values."""
mu = 2 ** qc - 1
x = np.sign(wav) / mu * ((1 + mu) ** np.abs(wav) - 1)
return x
@staticmethod
def encode_16bits(x):
return np.clip(x * 2**15, -2**15, 2**15 - 1).astype(np.int16)
@staticmethod
def quantize(x, bits):
return (x + 1.) * (2**bits - 1) / 2
@staticmethod
def dequantize(x, bits):
return 2 * x / (2**bits - 1) - 1
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import datetime
from TTS.utils.io import AttrDict
tcolors = AttrDict({
'OKBLUE': '\033[94m',
'HEADER': '\033[95m',
'OKGREEN': '\033[92m',
'WARNING': '\033[93m',
'FAIL': '\033[91m',
'ENDC': '\033[0m',
'BOLD': '\033[1m',
'UNDERLINE': '\033[4m'
})
class ConsoleLogger():
def __init__(self):
# TODO: color code for value changes
# use these to compare values between iterations
self.old_train_loss_dict = None
self.old_epoch_loss_dict = None
self.old_eval_loss_dict = None
# pylint: disable=no-self-use
def get_time(self):
now = datetime.datetime.now()
return now.strftime("%Y-%m-%d %H:%M:%S")
def print_epoch_start(self, epoch, max_epoch):
print("\n{}{} > EPOCH: {}/{}{}".format(tcolors.UNDERLINE, tcolors.BOLD,
epoch, max_epoch, tcolors.ENDC),
flush=True)
def print_train_start(self):
print(f"\n{tcolors.BOLD} > TRAINING ({self.get_time()}) {tcolors.ENDC}")
def print_train_step(self, batch_steps, step, global_step, avg_spec_length,
avg_text_length, step_time, loader_time, lr,
loss_dict, avg_loss_dict):
indent = " | > "
print()
log_text = "{} --> STEP: {}/{} -- GLOBAL_STEP: {}{}\n".format(
tcolors.BOLD, step, batch_steps, global_step, tcolors.ENDC)
for key, value in loss_dict.items():
# print the avg value if given
if f'avg_{key}' in avg_loss_dict.keys():
log_text += "{}{}: {:.5f} ({:.5f})\n".format(indent, key, value, avg_loss_dict[f'avg_{key}'])
else:
log_text += "{}{}: {:.5f} \n".format(indent, key, value)
log_text += f"{indent}avg_spec_len: {avg_spec_length}\n{indent}avg_text_len: {avg_text_length}\n{indent}"\
f"step_time: {step_time:.2f}\n{indent}loader_time: {loader_time:.2f}\n{indent}lr: {lr:.5f}"
print(log_text, flush=True)
# pylint: disable=unused-argument
def print_train_epoch_end(self, global_step, epoch, epoch_time,
print_dict):
indent = " | > "
log_text = f"\n{tcolors.BOLD} --> TRAIN PERFORMACE -- EPOCH TIME: {epoch_time:.2f} sec -- GLOBAL_STEP: {global_step}{tcolors.ENDC}\n"
for key, value in print_dict.items():
log_text += "{}{}: {:.5f}\n".format(indent, key, value)
print(log_text, flush=True)
def print_eval_start(self):
print(f"{tcolors.BOLD} > EVALUATION {tcolors.ENDC}\n")
def print_eval_step(self, step, loss_dict, avg_loss_dict):
indent = " | > "
print()
log_text = f"{tcolors.BOLD} --> STEP: {step}{tcolors.ENDC}\n"
for key, value in loss_dict.items():
# print the avg value if given
if f'avg_{key}' in avg_loss_dict.keys():
log_text += "{}{}: {:.5f} ({:.5f})\n".format(indent, key, value, avg_loss_dict[f'avg_{key}'])
else:
log_text += "{}{}: {:.5f} \n".format(indent, key, value)
print(log_text, flush=True)
def print_epoch_end(self, epoch, avg_loss_dict):
indent = " | > "
log_text = " {}--> EVAL PERFORMANCE{}\n".format(
tcolors.BOLD, tcolors.ENDC)
for key, value in avg_loss_dict.items():
# print the avg value if given
color = tcolors.FAIL
sign = '+'
diff = 0
if self.old_eval_loss_dict is not None:
diff = value - self.old_eval_loss_dict[key]
if diff <= 0:
color = tcolors.OKGREEN
sign = ''
log_text += "{}{}:{} {:.5f} {}({}{:.5f})\n".format(indent, key, color, value, tcolors.ENDC, sign, diff)
self.old_eval_loss_dict = avg_loss_dict
print(log_text, flush=True)
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import numpy as np
def _pad_data(x, length):
_pad = 0
assert x.ndim == 1
return np.pad(
x, (0, length - x.shape[0]), mode='constant', constant_values=_pad)
def prepare_data(inputs):
max_len = max((len(x) for x in inputs))
return np.stack([_pad_data(x, max_len) for x in inputs])
def _pad_tensor(x, length):
_pad = 0.
assert x.ndim == 2
x = np.pad(
x, [[0, 0], [0, length - x.shape[1]]],
mode='constant',
constant_values=_pad)
return x
def prepare_tensor(inputs, out_steps):
max_len = max((x.shape[1] for x in inputs))
remainder = max_len % out_steps
pad_len = max_len + (out_steps - remainder) if remainder > 0 else max_len
return np.stack([_pad_tensor(x, pad_len) for x in inputs])
def _pad_stop_target(x, length):
_pad = 0.
assert x.ndim == 1
return np.pad(
x, (0, length - x.shape[0]), mode='constant', constant_values=_pad)
def prepare_stop_target(inputs, out_steps):
""" Pad row vectors with 1. """
max_len = max((x.shape[0] for x in inputs))
remainder = max_len % out_steps
pad_len = max_len + (out_steps - remainder) if remainder > 0 else max_len
return np.stack([_pad_stop_target(x, pad_len) for x in inputs])
def pad_per_step(inputs, pad_len):
return np.pad(
inputs, [[0, 0], [0, 0], [0, pad_len]],
mode='constant',
constant_values=0.0)
# pylint: disable=attribute-defined-outside-init
class StandardScaler():
def set_stats(self, mean, scale):
self.mean_ = mean
self.scale_ = scale
def reset_stats(self):
delattr(self, 'mean_')
delattr(self, 'scale_')
def transform(self, X):
X = np.asarray(X)
X -= self.mean_
X /= self.scale_
return X
def inverse_transform(self, X):
X = np.asarray(X)
X *= self.scale_
X += self.mean_
return X
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import os
import glob
import torch
import shutil
import datetime
import subprocess
import importlib
import numpy as np
from collections import Counter
def get_git_branch():
try:
out = subprocess.check_output(["git", "branch"]).decode("utf8")
current = next(line for line in out.split("\n")
if line.startswith("*"))
current.replace("* ", "")
except subprocess.CalledProcessError:
current = "inside_docker"
return current
def get_commit_hash():
"""https://stackoverflow.com/questions/14989858/get-the-current-git-hash-in-a-python-script"""
# try:
# subprocess.check_output(['git', 'diff-index', '--quiet',
# 'HEAD']) # Verify client is clean
# except:
# raise RuntimeError(
# " !! Commit before training to get the commit hash.")
try:
commit = subprocess.check_output(
['git', 'rev-parse', '--short', 'HEAD']).decode().strip()
# Not copying .git folder into docker container
except subprocess.CalledProcessError:
commit = "0000000"
print(' > Git Hash: {}'.format(commit))
return commit
def create_experiment_folder(root_path, model_name, debug):
""" Create a folder with the current date and time """
date_str = datetime.datetime.now().strftime("%B-%d-%Y_%I+%M%p")
if debug:
commit_hash = 'debug'
else:
commit_hash = get_commit_hash()
output_folder = os.path.join(
root_path, model_name + '-' + date_str + '-' + commit_hash)
os.makedirs(output_folder, exist_ok=True)
print(" > Experiment folder: {}".format(output_folder))
return output_folder
def remove_experiment_folder(experiment_path):
"""Check folder if there is a checkpoint, otherwise remove the folder"""
checkpoint_files = glob.glob(experiment_path + "/*.pth.tar")
if not checkpoint_files:
if os.path.exists(experiment_path):
shutil.rmtree(experiment_path, ignore_errors=True)
print(" ! Run is removed from {}".format(experiment_path))
else:
print(" ! Run is kept in {}".format(experiment_path))
def count_parameters(model):
r"""Count number of trainable parameters in a network"""
return sum(p.numel() for p in model.parameters() if p.requires_grad)
def split_dataset(items):
is_multi_speaker = False
speakers = [item[-1] for item in items]
is_multi_speaker = len(set(speakers)) > 1
eval_split_size = 500 if len(items) * 0.01 > 500 else int(
len(items) * 0.01)
assert eval_split_size > 0, " [!] You do not have enough samples to train. You need at least 100 samples."
np.random.seed(0)
np.random.shuffle(items)
if is_multi_speaker:
items_eval = []
# most stupid code ever -- Fix it !
while len(items_eval) < eval_split_size:
speakers = [item[-1] for item in items]
speaker_counter = Counter(speakers)
item_idx = np.random.randint(0, len(items))
if speaker_counter[items[item_idx][-1]] > 1:
items_eval.append(items[item_idx])
del items[item_idx]
return items_eval, items
return items[:eval_split_size], items[eval_split_size:]
# from https://gist.github.com/jihunchoi/f1434a77df9db1bb337417854b398df1
def sequence_mask(sequence_length, max_len=None):
if max_len is None:
max_len = sequence_length.data.max()
batch_size = sequence_length.size(0)
seq_range = torch.arange(0, max_len).long()
seq_range_expand = seq_range.unsqueeze(0).expand(batch_size, max_len)
if sequence_length.is_cuda:
seq_range_expand = seq_range_expand.to(sequence_length.device)
seq_length_expand = (
sequence_length.unsqueeze(1).expand_as(seq_range_expand))
# B x T_max
return seq_range_expand < seq_length_expand
def set_init_dict(model_dict, checkpoint_state, c):
# Partial initialization: if there is a mismatch with new and old layer, it is skipped.
for k, v in checkpoint_state.items():
if k not in model_dict:
print(" | > Layer missing in the model definition: {}".format(k))
# 1. filter out unnecessary keys
pretrained_dict = {
k: v
for k, v in checkpoint_state.items() if k in model_dict
}
# 2. filter out different size layers
pretrained_dict = {
k: v
for k, v in pretrained_dict.items()
if v.numel() == model_dict[k].numel()
}
# 3. skip reinit layers
if c.reinit_layers is not None:
for reinit_layer_name in c.reinit_layers:
pretrained_dict = {
k: v
for k, v in pretrained_dict.items()
if reinit_layer_name not in k
}
# 4. overwrite entries in the existing state dict
model_dict.update(pretrained_dict)
print(" | > {} / {} layers are restored.".format(len(pretrained_dict),
len(model_dict)))
return model_dict
def setup_model(num_chars, num_speakers, c):
print(" > Using model: {}".format(c.model))
MyModel = importlib.import_module('TTS.models.' + c.model.lower())
MyModel = getattr(MyModel, c.model)
if c.model.lower() in "tacotron":
model = MyModel(num_chars=num_chars,
num_speakers=num_speakers,
r=c.r,
postnet_output_dim=int(c.audio['fft_size'] / 2 + 1),
decoder_output_dim=c.audio['num_mels'],
gst=c.use_gst,
memory_size=c.memory_size,
attn_type=c.attention_type,
attn_win=c.windowing,
attn_norm=c.attention_norm,
prenet_type=c.prenet_type,
prenet_dropout=c.prenet_dropout,
forward_attn=c.use_forward_attn,
trans_agent=c.transition_agent,
forward_attn_mask=c.forward_attn_mask,
location_attn=c.location_attn,
attn_K=c.attention_heads,
separate_stopnet=c.separate_stopnet,
bidirectional_decoder=c.bidirectional_decoder,
double_decoder_consistency=c.double_decoder_consistency,
ddc_r=c.ddc_r)
elif c.model.lower() == "tacotron2":
model = MyModel(num_chars=num_chars,
num_speakers=num_speakers,
r=c.r,
postnet_output_dim=c.audio['num_mels'],
decoder_output_dim=c.audio['num_mels'],
gst=c.use_gst,
attn_type=c.attention_type,
attn_win=c.windowing,
attn_norm=c.attention_norm,
prenet_type=c.prenet_type,
prenet_dropout=c.prenet_dropout,
forward_attn=c.use_forward_attn,
trans_agent=c.transition_agent,
forward_attn_mask=c.forward_attn_mask,
location_attn=c.location_attn,
attn_K=c.attention_heads,
separate_stopnet=c.separate_stopnet,
bidirectional_decoder=c.bidirectional_decoder,
double_decoder_consistency=c.double_decoder_consistency,
ddc_r=c.ddc_r)
return model
class KeepAverage():
def __init__(self):
self.avg_values = {}
self.iters = {}
def __getitem__(self, key):
return self.avg_values[key]
def items(self):
return self.avg_values.items()
def add_value(self, name, init_val=0, init_iter=0):
self.avg_values[name] = init_val
self.iters[name] = init_iter
def update_value(self, name, value, weighted_avg=False):
if name not in self.avg_values:
# add value if not exist before
self.add_value(name, init_val=value)
else:
# else update existing value
if weighted_avg:
self.avg_values[name] = 0.99 * self.avg_values[name] + 0.01 * value
self.iters[name] += 1
else:
self.avg_values[name] = self.avg_values[name] * \
self.iters[name] + value
self.iters[name] += 1
self.avg_values[name] /= self.iters[name]
def add_values(self, name_dict):
for key, value in name_dict.items():
self.add_value(key, init_val=value)
def update_values(self, value_dict):
for key, value in value_dict.items():
self.update_value(key, value)
def _check_argument(name, c, enum_list=None, max_val=None, min_val=None, restricted=False, val_type=None, alternative=None):
if alternative in c.keys() and c[alternative] is not None:
return
if restricted:
assert name in c.keys(), f' [!] {name} not defined in config.json'
if name in c.keys():
if max_val:
assert c[name] <= max_val, f' [!] {name} is larger than max value {max_val}'
if min_val:
assert c[name] >= min_val, f' [!] {name} is smaller than min value {min_val}'
if enum_list:
assert c[name].lower() in enum_list, f' [!] {name} is not a valid value'
if val_type:
assert isinstance(c[name], val_type) or c[name] is None, f' [!] {name} has wrong type - {type(c[name])} vs {val_type}'
def check_config(c):
_check_argument('model', c, enum_list=['tacotron', 'tacotron2'], restricted=True, val_type=str)
_check_argument('run_name', c, restricted=True, val_type=str)
_check_argument('run_description', c, val_type=str)
# AUDIO
_check_argument('audio', c, restricted=True, val_type=dict)
# audio processing parameters
_check_argument('num_mels', c['audio'], restricted=True, val_type=int, min_val=10, max_val=2056)
_check_argument('fft_size', c['audio'], restricted=True, val_type=int, min_val=128, max_val=4058)
_check_argument('sample_rate', c['audio'], restricted=True, val_type=int, min_val=512, max_val=100000)
_check_argument('frame_length_ms', c['audio'], restricted=True, val_type=float, min_val=10, max_val=1000, alternative='win_length')
_check_argument('frame_shift_ms', c['audio'], restricted=True, val_type=float, min_val=1, max_val=1000, alternative='hop_length')
_check_argument('preemphasis', c['audio'], restricted=True, val_type=float, min_val=0, max_val=1)
_check_argument('min_level_db', c['audio'], restricted=True, val_type=int, min_val=-1000, max_val=10)
_check_argument('ref_level_db', c['audio'], restricted=True, val_type=int, min_val=0, max_val=1000)
_check_argument('power', c['audio'], restricted=True, val_type=float, min_val=1, max_val=5)
_check_argument('griffin_lim_iters', c['audio'], restricted=True, val_type=int, min_val=10, max_val=1000)
# vocabulary parameters
_check_argument('characters', c, restricted=False, val_type=dict)
_check_argument('pad', c['characters'] if 'characters' in c.keys() else {}, restricted='characters' in c.keys(), val_type=str)
_check_argument('eos', c['characters'] if 'characters' in c.keys() else {}, restricted='characters' in c.keys(), val_type=str)
_check_argument('bos', c['characters'] if 'characters' in c.keys() else {}, restricted='characters' in c.keys(), val_type=str)
_check_argument('characters', c['characters'] if 'characters' in c.keys() else {}, restricted='characters' in c.keys(), val_type=str)
_check_argument('phonemes', c['characters'] if 'characters' in c.keys() else {}, restricted='characters' in c.keys(), val_type=str)
_check_argument('punctuations', c['characters'] if 'characters' in c.keys() else {}, restricted='characters' in c.keys(), val_type=str)
# normalization parameters
_check_argument('signal_norm', c['audio'], restricted=True, val_type=bool)
_check_argument('symmetric_norm', c['audio'], restricted=True, val_type=bool)
_check_argument('max_norm', c['audio'], restricted=True, val_type=float, min_val=0.1, max_val=1000)
_check_argument('clip_norm', c['audio'], restricted=True, val_type=bool)
_check_argument('mel_fmin', c['audio'], restricted=True, val_type=float, min_val=0.0, max_val=1000)
_check_argument('mel_fmax', c['audio'], restricted=True, val_type=float, min_val=500.0)
_check_argument('spec_gain', c['audio'], restricted=True, val_type=float, min_val=1, max_val=100)
_check_argument('do_trim_silence', c['audio'], restricted=True, val_type=bool)
_check_argument('trim_db', c['audio'], restricted=True, val_type=int)
# training parameters
_check_argument('batch_size', c, restricted=True, val_type=int, min_val=1)
_check_argument('eval_batch_size', c, restricted=True, val_type=int, min_val=1)
_check_argument('r', c, restricted=True, val_type=int, min_val=1)
_check_argument('gradual_training', c, restricted=False, val_type=list)
_check_argument('loss_masking', c, restricted=True, val_type=bool)
# _check_argument('grad_accum', c, restricted=True, val_type=int, min_val=1, max_val=100)
# validation parameters
_check_argument('run_eval', c, restricted=True, val_type=bool)
_check_argument('test_delay_epochs', c, restricted=True, val_type=int, min_val=0)
_check_argument('test_sentences_file', c, restricted=False, val_type=str)
# optimizer
_check_argument('noam_schedule', c, restricted=False, val_type=bool)
_check_argument('grad_clip', c, restricted=True, val_type=float, min_val=0.0)
_check_argument('epochs', c, restricted=True, val_type=int, min_val=1)
_check_argument('lr', c, restricted=True, val_type=float, min_val=0)
_check_argument('wd', c, restricted=True, val_type=float, min_val=0)
_check_argument('warmup_steps', c, restricted=True, val_type=int, min_val=0)
_check_argument('seq_len_norm', c, restricted=True, val_type=bool)
# tacotron prenet
_check_argument('memory_size', c, restricted=True, val_type=int, min_val=-1)
_check_argument('prenet_type', c, restricted=True, val_type=str, enum_list=['original', 'bn'])
_check_argument('prenet_dropout', c, restricted=True, val_type=bool)
# attention
_check_argument('attention_type', c, restricted=True, val_type=str, enum_list=['graves', 'original'])
_check_argument('attention_heads', c, restricted=True, val_type=int)
_check_argument('attention_norm', c, restricted=True, val_type=str, enum_list=['sigmoid', 'softmax'])
_check_argument('windowing', c, restricted=True, val_type=bool)
_check_argument('use_forward_attn', c, restricted=True, val_type=bool)
_check_argument('forward_attn_mask', c, restricted=True, val_type=bool)
_check_argument('transition_agent', c, restricted=True, val_type=bool)
_check_argument('transition_agent', c, restricted=True, val_type=bool)
_check_argument('location_attn', c, restricted=True, val_type=bool)
_check_argument('bidirectional_decoder', c, restricted=True, val_type=bool)
_check_argument('double_decoder_consistency', c, restricted=True, val_type=bool)
_check_argument('ddc_r', c, restricted='double_decoder_consistency' in c.keys(), min_val=1, max_val=7, val_type=int)
# stopnet
_check_argument('stopnet', c, restricted=True, val_type=bool)
_check_argument('separate_stopnet', c, restricted=True, val_type=bool)
# tensorboard
_check_argument('print_step', c, restricted=True, val_type=int, min_val=1)
_check_argument('tb_plot_step', c, restricted=True, val_type=int, min_val=1)
_check_argument('save_step', c, restricted=True, val_type=int, min_val=1)
_check_argument('checkpoint', c, restricted=True, val_type=bool)
_check_argument('tb_model_param_stats', c, restricted=True, val_type=bool)
# dataloading
# pylint: disable=import-outside-toplevel
from TTS.utils.text import cleaners
_check_argument('text_cleaner', c, restricted=True, val_type=str, enum_list=dir(cleaners))
_check_argument('enable_eos_bos_chars', c, restricted=True, val_type=bool)
_check_argument('num_loader_workers', c, restricted=True, val_type=int, min_val=0)
_check_argument('num_val_loader_workers', c, restricted=True, val_type=int, min_val=0)
_check_argument('batch_group_size', c, restricted=True, val_type=int, min_val=0)
_check_argument('min_seq_len', c, restricted=True, val_type=int, min_val=0)
_check_argument('max_seq_len', c, restricted=True, val_type=int, min_val=10)
# paths
_check_argument('output_path', c, restricted=True, val_type=str)
# multi-speaker gst
_check_argument('use_speaker_embedding', c, restricted=True, val_type=bool)
_check_argument('style_wav_for_test', c, restricted=True, val_type=str)
_check_argument('use_gst', c, restricted=True, val_type=bool)
# datasets - checking only the first entry
_check_argument('datasets', c, restricted=True, val_type=list)
for dataset_entry in c['datasets']:
_check_argument('name', dataset_entry, restricted=True, val_type=str)
_check_argument('path', dataset_entry, restricted=True, val_type=str)
_check_argument('meta_file_train', dataset_entry, restricted=True, val_type=str)
_check_argument('meta_file_val', dataset_entry, restricted=True, val_type=str)
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import os
import json
import re
import torch
import datetime
class AttrDict(dict):
def __init__(self, *args, **kwargs):
super(AttrDict, self).__init__(*args, **kwargs)
self.__dict__ = self
def load_config(config_path):
config = AttrDict()
with open(config_path, "r") as f:
input_str = f.read()
input_str = re.sub(r'\\\n', '', input_str)
input_str = re.sub(r'//.*\n', '\n', input_str)
data = json.loads(input_str)
config.update(data)
return config
def copy_config_file(config_file, out_path, new_fields):
config_lines = open(config_file, "r").readlines()
# add extra information fields
for key, value in new_fields.items():
if isinstance(value, str):
new_line = '"{}":"{}",\n'.format(key, value)
else:
new_line = '"{}":{},\n'.format(key, value)
config_lines.insert(1, new_line)
config_out_file = open(out_path, "w")
config_out_file.writelines(config_lines)
config_out_file.close()
def load_checkpoint(model, checkpoint_path, use_cuda=False):
state = torch.load(checkpoint_path, map_location=torch.device('cpu'))
model.load_state_dict(state['model'])
if use_cuda:
model.cuda()
# set model stepsize
if 'r' in state.keys():
model.decoder.set_r(state['r'])
return model, state
def save_model(model, optimizer, current_step, epoch, r, output_path, **kwargs):
new_state_dict = model.state_dict()
state = {
'model': new_state_dict,
'optimizer': optimizer.state_dict() if optimizer is not None else None,
'step': current_step,
'epoch': epoch,
'date': datetime.date.today().strftime("%B %d, %Y"),
'r': r
}
state.update(kwargs)
torch.save(state, output_path)
def save_checkpoint(model, optimizer, current_step, epoch, r, output_folder, **kwargs):
file_name = 'checkpoint_{}.pth.tar'.format(current_step)
checkpoint_path = os.path.join(output_folder, file_name)
print(" > CHECKPOINT : {}".format(checkpoint_path))
save_model(model, optimizer, current_step, epoch, r, checkpoint_path, **kwargs)
def save_best_model(target_loss, best_loss, model, optimizer, current_step, epoch, r, output_folder, **kwargs):
if target_loss < best_loss:
file_name = 'best_model.pth.tar'
checkpoint_path = os.path.join(output_folder, file_name)
print(" > BEST MODEL : {}".format(checkpoint_path))
save_model(model, optimizer, current_step, epoch, r, checkpoint_path, model_loss=target_loss, **kwargs)
best_loss = target_loss
return best_loss
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import torch
def alignment_diagonal_score(alignments, binary=False):
"""
Compute how diagonal alignment predictions are. It is useful
to measure the alignment consistency of a model
Args:
alignments (torch.Tensor): batch of alignments.
binary (bool): if True, ignore scores and consider attention
as a binary mask.
Shape:
alignments : batch x decoder_steps x encoder_steps
"""
maxs = alignments.max(dim=1)[0]
if binary:
maxs[maxs > 0] = 1
return maxs.mean(dim=1).mean(dim=0).item()
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# from https://github.com/LiyuanLucasLiu/RAdam
import math
import torch
from torch.optim.optimizer import Optimizer, required
class RAdam(Optimizer):
def __init__(self, params, lr=1e-3, betas=(0.9, 0.999), eps=1e-8, weight_decay=0, degenerated_to_sgd=True):
if lr < 0.0:
raise ValueError("Invalid learning rate: {}".format(lr))
if eps < 0.0:
raise ValueError("Invalid epsilon value: {}".format(eps))
if not 0.0 <= betas[0] < 1.0:
raise ValueError("Invalid beta parameter at index 0: {}".format(betas[0]))
if not 0.0 <= betas[1] < 1.0:
raise ValueError("Invalid beta parameter at index 1: {}".format(betas[1]))
self.degenerated_to_sgd = degenerated_to_sgd
if isinstance(params, (list, tuple)) and len(params) > 0 and isinstance(params[0], dict):
for param in params:
if 'betas' in param and (param['betas'][0] != betas[0] or param['betas'][1] != betas[1]):
param['buffer'] = [[None, None, None] for _ in range(10)]
defaults = dict(lr=lr, betas=betas, eps=eps, weight_decay=weight_decay, buffer=[[None, None, None] for _ in range(10)])
super(RAdam, self).__init__(params, defaults)
def __setstate__(self, state):
super(RAdam, self).__setstate__(state)
def step(self, closure=None):
loss = None
if closure is not None:
loss = closure()
for group in self.param_groups:
for p in group['params']:
if p.grad is None:
continue
grad = p.grad.data.float()
if grad.is_sparse:
raise RuntimeError('RAdam does not support sparse gradients')
p_data_fp32 = p.data.float()
state = self.state[p]
if len(state) == 0:
state['step'] = 0
state['exp_avg'] = torch.zeros_like(p_data_fp32)
state['exp_avg_sq'] = torch.zeros_like(p_data_fp32)
else:
state['exp_avg'] = state['exp_avg'].type_as(p_data_fp32)
state['exp_avg_sq'] = state['exp_avg_sq'].type_as(p_data_fp32)
exp_avg, exp_avg_sq = state['exp_avg'], state['exp_avg_sq']
beta1, beta2 = group['betas']
exp_avg_sq.mul_(beta2).addcmul_(grad, grad, value=1 - beta2)
exp_avg.mul_(beta1).add_(grad, alpha=1 - beta1)
state['step'] += 1
buffered = group['buffer'][int(state['step'] % 10)]
if state['step'] == buffered[0]:
N_sma, step_size = buffered[1], buffered[2]
else:
buffered[0] = state['step']
beta2_t = beta2 ** state['step']
N_sma_max = 2 / (1 - beta2) - 1
N_sma = N_sma_max - 2 * state['step'] * beta2_t / (1 - beta2_t)
buffered[1] = N_sma
# more conservative since it's an approximated value
if N_sma >= 5:
step_size = math.sqrt((1 - beta2_t) * (N_sma - 4) / (N_sma_max - 4) * (N_sma - 2) / N_sma * N_sma_max / (N_sma_max - 2)) / (1 - beta1 ** state['step'])
elif self.degenerated_to_sgd:
step_size = 1.0 / (1 - beta1 ** state['step'])
else:
step_size = -1
buffered[2] = step_size
# more conservative since it's an approximated value
if N_sma >= 5:
if group['weight_decay'] != 0:
p_data_fp32.add_(p_data_fp32, alpha=-group['weight_decay'] * group['lr'])
denom = exp_avg_sq.sqrt().add_(group['eps'])
p_data_fp32.addcdiv_(exp_avg, denom, value=-step_size * group['lr'])
p.data.copy_(p_data_fp32)
elif step_size > 0:
if group['weight_decay'] != 0:
p_data_fp32.add_(p_data_fp32, alpha=-group['weight_decay'] * group['lr'])
p_data_fp32.add_(exp_avg, alpha=-step_size * group['lr'])
p.data.copy_(p_data_fp32)
return loss
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import os
import json
from TTS.datasets.preprocess import get_preprocessor_by_name
def make_speakers_json_path(out_path):
"""Returns conventional speakers.json location."""
return os.path.join(out_path, "speakers.json")
def load_speaker_mapping(out_path):
"""Loads speaker mapping if already present."""
try:
with open(make_speakers_json_path(out_path)) as f:
return json.load(f)
except FileNotFoundError:
return {}
def save_speaker_mapping(out_path, speaker_mapping):
"""Saves speaker mapping if not yet present."""
speakers_json_path = make_speakers_json_path(out_path)
with open(speakers_json_path, "w") as f:
json.dump(speaker_mapping, f, indent=4)
def get_speakers(items):
"""Returns a sorted, unique list of speakers in a given dataset."""
speakers = {e[2] for e in items}
return sorted(speakers)
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import pkg_resources
installed = {pkg.key for pkg in pkg_resources.working_set} #pylint: disable=not-an-iterable
if 'tensorflow' in installed or 'tensorflow-gpu' in installed:
import tensorflow as tf
import torch
import numpy as np
from .text import text_to_sequence, phoneme_to_sequence
def text_to_seqvec(text, CONFIG):
text_cleaner = [CONFIG.text_cleaner]
# text ot phonemes to sequence vector
if CONFIG.use_phonemes:
seq = np.asarray(
phoneme_to_sequence(text, text_cleaner, CONFIG.phoneme_language,
CONFIG.enable_eos_bos_chars,
tp=CONFIG.characters if 'characters' in CONFIG.keys() else None),
dtype=np.int32)
else:
seq = np.asarray(text_to_sequence(text, text_cleaner, tp=CONFIG.characters if 'characters' in CONFIG.keys() else None), dtype=np.int32)
return seq
def numpy_to_torch(np_array, dtype, cuda=False):
if np_array is None:
return None
tensor = torch.as_tensor(np_array, dtype=dtype)
if cuda:
return tensor.cuda()
return tensor
def numpy_to_tf(np_array, dtype):
if np_array is None:
return None
tensor = tf.convert_to_tensor(np_array, dtype=dtype)
return tensor
def compute_style_mel(style_wav, ap):
style_mel = ap.melspectrogram(
ap.load_wav(style_wav)).expand_dims(0)
return style_mel
def run_model_torch(model, inputs, CONFIG, truncated, speaker_id=None, style_mel=None):
if CONFIG.use_gst:
decoder_output, postnet_output, alignments, stop_tokens = model.inference(
inputs, style_mel=style_mel, speaker_ids=speaker_id)
else:
if truncated:
decoder_output, postnet_output, alignments, stop_tokens = model.inference_truncated(
inputs, speaker_ids=speaker_id)
else:
decoder_output, postnet_output, alignments, stop_tokens = model.inference(
inputs, speaker_ids=speaker_id)
return decoder_output, postnet_output, alignments, stop_tokens
def run_model_tf(model, inputs, CONFIG, truncated, speaker_id=None, style_mel=None):
if CONFIG.use_gst and style_mel is not None:
raise NotImplementedError(' [!] GST inference not implemented for TF')
if truncated:
raise NotImplementedError(' [!] Truncated inference not implemented for TF')
if speaker_id is not None:
raise NotImplementedError(' [!] Multi-Speaker not implemented for TF')
# TODO: handle multispeaker case
decoder_output, postnet_output, alignments, stop_tokens = model(
inputs, training=False)
return decoder_output, postnet_output, alignments, stop_tokens
def run_model_tflite(model, inputs, CONFIG, truncated, speaker_id=None, style_mel=None):
if CONFIG.use_gst and style_mel is not None:
raise NotImplementedError(' [!] GST inference not implemented for TfLite')
if truncated:
raise NotImplementedError(' [!] Truncated inference not implemented for TfLite')
if speaker_id is not None:
raise NotImplementedError(' [!] Multi-Speaker not implemented for TfLite')
# get input and output details
input_details = model.get_input_details()
output_details = model.get_output_details()
# reshape input tensor for the new input shape
model.resize_tensor_input(input_details[0]['index'], inputs.shape)
model.allocate_tensors()
detail = input_details[0]
# input_shape = detail['shape']
model.set_tensor(detail['index'], inputs)
# run the model
model.invoke()
# collect outputs
decoder_output = model.get_tensor(output_details[0]['index'])
postnet_output = model.get_tensor(output_details[1]['index'])
# tflite model only returns feature frames
return decoder_output, postnet_output, None, None
def parse_outputs_torch(postnet_output, decoder_output, alignments, stop_tokens):
postnet_output = postnet_output[0].data.cpu().numpy()
decoder_output = decoder_output[0].data.cpu().numpy()
alignment = alignments[0].cpu().data.numpy()
stop_tokens = stop_tokens[0].cpu().numpy()
return postnet_output, decoder_output, alignment, stop_tokens
def parse_outputs_tf(postnet_output, decoder_output, alignments, stop_tokens):
postnet_output = postnet_output[0].numpy()
decoder_output = decoder_output[0].numpy()
alignment = alignments[0].numpy()
stop_tokens = stop_tokens[0].numpy()
return postnet_output, decoder_output, alignment, stop_tokens
def parse_outputs_tflite(postnet_output, decoder_output):
postnet_output = postnet_output[0]
decoder_output = decoder_output[0]
return postnet_output, decoder_output
def trim_silence(wav, ap):
return wav[:ap.find_endpoint(wav)]
def inv_spectrogram(postnet_output, ap, CONFIG):
if CONFIG.model.lower() in ["tacotron"]:
wav = ap.inv_spectrogram(postnet_output.T)
else:
wav = ap.inv_melspectrogram(postnet_output.T)
return wav
def id_to_torch(speaker_id):
if speaker_id is not None:
speaker_id = np.asarray(speaker_id)
speaker_id = torch.from_numpy(speaker_id).unsqueeze(0)
return speaker_id
# TODO: perform GL with pytorch for batching
def apply_griffin_lim(inputs, input_lens, CONFIG, ap):
'''Apply griffin-lim to each sample iterating throught the first dimension.
Args:
inputs (Tensor or np.Array): Features to be converted by GL. First dimension is the batch size.
input_lens (Tensor or np.Array): 1D array of sample lengths.
CONFIG (Dict): TTS config.
ap (AudioProcessor): TTS audio processor.
'''
wavs = []
for idx, spec in enumerate(inputs):
wav_len = (input_lens[idx] * ap.hop_length) - ap.hop_length # inverse librosa padding
wav = inv_spectrogram(spec, ap, CONFIG)
# assert len(wav) == wav_len, f" [!] wav lenght: {len(wav)} vs expected: {wav_len}"
wavs.append(wav[:wav_len])
return wavs
def synthesis(model,
text,
CONFIG,
use_cuda,
ap,
speaker_id=None,
style_wav=None,
truncated=False,
enable_eos_bos_chars=False, #pylint: disable=unused-argument
use_griffin_lim=False,
do_trim_silence=False,
backend='torch'):
"""Synthesize voice for the given text.
Args:
model (TTS.models): model to synthesize.
text (str): target text
CONFIG (dict): config dictionary to be loaded from config.json.
use_cuda (bool): enable cuda.
ap (TTS.utils.audio.AudioProcessor): audio processor to process
model outputs.
speaker_id (int): id of speaker
style_wav (str): Uses for style embedding of GST.
truncated (bool): keep model states after inference. It can be used
for continuous inference at long texts.
enable_eos_bos_chars (bool): enable special chars for end of sentence and start of sentence.
do_trim_silence (bool): trim silence after synthesis.
backend (str): tf or torch
"""
# GST processing
style_mel = None
if CONFIG.model == "TacotronGST" and style_wav is not None:
style_mel = compute_style_mel(style_wav, ap)
# preprocess the given text
inputs = text_to_seqvec(text, CONFIG)
# pass tensors to backend
if backend == 'torch':
speaker_id = id_to_torch(speaker_id)
style_mel = numpy_to_torch(style_mel, torch.float, cuda=use_cuda)
inputs = numpy_to_torch(inputs, torch.long, cuda=use_cuda)
inputs = inputs.unsqueeze(0)
elif backend == 'tf':
# TODO: handle speaker id for tf model
style_mel = numpy_to_tf(style_mel, tf.float32)
inputs = numpy_to_tf(inputs, tf.int32)
inputs = tf.expand_dims(inputs, 0)
elif backend == 'tflite':
style_mel = numpy_to_tf(style_mel, tf.float32)
inputs = numpy_to_tf(inputs, tf.int32)
inputs = tf.expand_dims(inputs, 0)
# synthesize voice
if backend == 'torch':
decoder_output, postnet_output, alignments, stop_tokens = run_model_torch(
model, inputs, CONFIG, truncated, speaker_id, style_mel)
postnet_output, decoder_output, alignment, stop_tokens = parse_outputs_torch(
postnet_output, decoder_output, alignments, stop_tokens)
elif backend == 'tf':
decoder_output, postnet_output, alignments, stop_tokens = run_model_tf(
model, inputs, CONFIG, truncated, speaker_id, style_mel)
postnet_output, decoder_output, alignment, stop_tokens = parse_outputs_tf(
postnet_output, decoder_output, alignments, stop_tokens)
elif backend == 'tflite':
decoder_output, postnet_output, alignment, stop_tokens = run_model_tflite(
model, inputs, CONFIG, truncated, speaker_id, style_mel)
postnet_output, decoder_output = parse_outputs_tflite(
postnet_output, decoder_output)
# convert outputs to numpy
# plot results
wav = None
if use_griffin_lim:
wav = inv_spectrogram(postnet_output, ap, CONFIG)
# trim silence
if do_trim_silence:
wav = trim_silence(wav, ap)
return wav, alignment, decoder_output, postnet_output, stop_tokens, inputs
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import traceback
from tensorboardX import SummaryWriter
class TensorboardLogger(object):
def __init__(self, log_dir, model_name):
self.model_name = model_name
self.writer = SummaryWriter(log_dir)
self.train_stats = {}
self.eval_stats = {}
def tb_model_weights(self, model, step):
layer_num = 1
for name, param in model.named_parameters():
if param.numel() == 1:
self.writer.add_scalar(
"layer{}-{}/value".format(layer_num, name),
param.max(), step)
else:
self.writer.add_scalar(
"layer{}-{}/max".format(layer_num, name),
param.max(), step)
self.writer.add_scalar(
"layer{}-{}/min".format(layer_num, name),
param.min(), step)
self.writer.add_scalar(
"layer{}-{}/mean".format(layer_num, name),
param.mean(), step)
self.writer.add_scalar(
"layer{}-{}/std".format(layer_num, name),
param.std(), step)
self.writer.add_histogram(
"layer{}-{}/param".format(layer_num, name), param, step)
self.writer.add_histogram(
"layer{}-{}/grad".format(layer_num, name), param.grad, step)
layer_num += 1
def dict_to_tb_scalar(self, scope_name, stats, step):
for key, value in stats.items():
self.writer.add_scalar('{}/{}'.format(scope_name, key), value, step)
def dict_to_tb_figure(self, scope_name, figures, step):
for key, value in figures.items():
self.writer.add_figure('{}/{}'.format(scope_name, key), value, step)
def dict_to_tb_audios(self, scope_name, audios, step, sample_rate):
for key, value in audios.items():
try:
self.writer.add_audio('{}/{}'.format(scope_name, key), value, step, sample_rate=sample_rate)
except:
traceback.print_exc()
def tb_train_iter_stats(self, step, stats):
self.dict_to_tb_scalar(f"{self.model_name}_TrainIterStats", stats, step)
def tb_train_epoch_stats(self, step, stats):
self.dict_to_tb_scalar(f"{self.model_name}_TrainEpochStats", stats, step)
def tb_train_figures(self, step, figures):
self.dict_to_tb_figure(f"{self.model_name}_TrainFigures", figures, step)
def tb_train_audios(self, step, audios, sample_rate):
self.dict_to_tb_audios(f"{self.model_name}_TrainAudios", audios, step, sample_rate)
def tb_eval_stats(self, step, stats):
self.dict_to_tb_scalar(f"{self.model_name}_EvalStats", stats, step)
def tb_eval_figures(self, step, figures):
self.dict_to_tb_figure(f"{self.model_name}_EvalFigures", figures, step)
def tb_eval_audios(self, step, audios, sample_rate):
self.dict_to_tb_audios(f"{self.model_name}_EvalAudios", audios, step, sample_rate)
def tb_test_audios(self, step, audios, sample_rate):
self.dict_to_tb_audios(f"{self.model_name}_TestAudios", audios, step, sample_rate)
def tb_test_figures(self, step, figures):
self.dict_to_tb_figure(f"{self.model_name}_TestFigures", figures, step)
def tb_add_text(self, title, text, step):
self.writer.add_text(title, text, step)
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# -*- coding: utf-8 -*-
import re
from packaging import version
import phonemizer
from phonemizer.phonemize import phonemize
from TTS.utils.text import cleaners
from TTS.utils.text.symbols import make_symbols, symbols, phonemes, _phoneme_punctuations, _bos, \
_eos
# Mappings from symbol to numeric ID and vice versa:
_symbol_to_id = {s: i for i, s in enumerate(symbols)}
_id_to_symbol = {i: s for i, s in enumerate(symbols)}
_phonemes_to_id = {s: i for i, s in enumerate(phonemes)}
_id_to_phonemes = {i: s for i, s in enumerate(phonemes)}
# Regular expression matching text enclosed in curly braces:
_CURLY_RE = re.compile(r'(.*?)\{(.+?)\}(.*)')
# Regular expression matching punctuations, ignoring empty space
PHONEME_PUNCTUATION_PATTERN = r'['+_phoneme_punctuations+']+'
def text2phone(text, language):
'''
Convert graphemes to phonemes.
'''
seperator = phonemizer.separator.Separator(' |', '', '|')
#try:
punctuations = re.findall(PHONEME_PUNCTUATION_PATTERN, text)
if version.parse(phonemizer.__version__) < version.parse('2.1'):
ph = phonemize(text, separator=seperator, strip=False, njobs=1, backend='espeak', language=language)
ph = ph[:-1].strip() # skip the last empty character
# phonemizer does not tackle punctuations. Here we do.
# Replace \n with matching punctuations.
if punctuations:
# if text ends with a punctuation.
if text[-1] == punctuations[-1]:
for punct in punctuations[:-1]:
ph = ph.replace('| |\n', '|'+punct+'| |', 1)
ph = ph + punctuations[-1]
else:
for punct in punctuations:
ph = ph.replace('| |\n', '|'+punct+'| |', 1)
elif version.parse(phonemizer.__version__) >= version.parse('2.1'):
ph = phonemize(text, separator=seperator, strip=False, njobs=1, backend='espeak', language=language, preserve_punctuation=True)
# this is a simple fix for phonemizer.
# https://github.com/bootphon/phonemizer/issues/32
if punctuations:
for punctuation in punctuations:
ph = ph.replace(f"| |{punctuation} ", f"|{punctuation}| |").replace(f"| |{punctuation}", f"|{punctuation}| |")
ph = ph[:-3]
else:
raise RuntimeError(" [!] Use 'phonemizer' version 2.1 or older.")
return ph
def pad_with_eos_bos(phoneme_sequence, tp=None):
# pylint: disable=global-statement
global _phonemes_to_id, _bos, _eos
if tp:
_bos = tp['bos']
_eos = tp['eos']
_, _phonemes = make_symbols(**tp)
_phonemes_to_id = {s: i for i, s in enumerate(_phonemes)}
return [_phonemes_to_id[_bos]] + list(phoneme_sequence) + [_phonemes_to_id[_eos]]
def phoneme_to_sequence(text, cleaner_names, language, enable_eos_bos=False, tp=None):
# pylint: disable=global-statement
global _phonemes_to_id
if tp:
_, _phonemes = make_symbols(**tp)
_phonemes_to_id = {s: i for i, s in enumerate(_phonemes)}
sequence = []
clean_text = _clean_text(text, cleaner_names)
to_phonemes = text2phone(clean_text, language)
if to_phonemes is None:
print("!! After phoneme conversion the result is None. -- {} ".format(clean_text))
# iterate by skipping empty strings - NOTE: might be useful to keep it to have a better intonation.
for phoneme in filter(None, to_phonemes.split('|')):
sequence += _phoneme_to_sequence(phoneme)
# Append EOS char
if enable_eos_bos:
sequence = pad_with_eos_bos(sequence, tp=tp)
return sequence
def sequence_to_phoneme(sequence, tp=None):
# pylint: disable=global-statement
'''Converts a sequence of IDs back to a string'''
global _id_to_phonemes
result = ''
if tp:
_, _phonemes = make_symbols(**tp)
_id_to_phonemes = {i: s for i, s in enumerate(_phonemes)}
for symbol_id in sequence:
if symbol_id in _id_to_phonemes:
s = _id_to_phonemes[symbol_id]
result += s
return result.replace('}{', ' ')
def text_to_sequence(text, cleaner_names, tp=None):
'''Converts a string of text to a sequence of IDs corresponding to the symbols in the text.
The text can optionally have ARPAbet sequences enclosed in curly braces embedded
in it. For example, "Turn left on {HH AW1 S S T AH0 N} Street."
Args:
text: string to convert to a sequence
cleaner_names: names of the cleaner functions to run the text through
Returns:
List of integers corresponding to the symbols in the text
'''
# pylint: disable=global-statement
global _symbol_to_id
if tp:
_symbols, _ = make_symbols(**tp)
_symbol_to_id = {s: i for i, s in enumerate(_symbols)}
sequence = []
# Check for curly braces and treat their contents as ARPAbet:
while text:
m = _CURLY_RE.match(text)
if not m:
sequence += _symbols_to_sequence(_clean_text(text, cleaner_names))
break
sequence += _symbols_to_sequence(
_clean_text(m.group(1), cleaner_names))
sequence += _arpabet_to_sequence(m.group(2))
text = m.group(3)
return sequence
def sequence_to_text(sequence, tp=None):
'''Converts a sequence of IDs back to a string'''
# pylint: disable=global-statement
global _id_to_symbol
if tp:
_symbols, _ = make_symbols(**tp)
_id_to_symbol = {i: s for i, s in enumerate(_symbols)}
result = ''
for symbol_id in sequence:
if symbol_id in _id_to_symbol:
s = _id_to_symbol[symbol_id]
# Enclose ARPAbet back in curly braces:
if len(s) > 1 and s[0] == '@':
s = '{%s}' % s[1:]
result += s
return result.replace('}{', ' ')
def _clean_text(text, cleaner_names):
for name in cleaner_names:
cleaner = getattr(cleaners, name)
if not cleaner:
raise Exception('Unknown cleaner: %s' % name)
text = cleaner(text)
return text
def _symbols_to_sequence(syms):
return [_symbol_to_id[s] for s in syms if _should_keep_symbol(s)]
def _phoneme_to_sequence(phons):
return [_phonemes_to_id[s] for s in list(phons) if _should_keep_phoneme(s)]
def _arpabet_to_sequence(text):
return _symbols_to_sequence(['@' + s for s in text.split()])
def _should_keep_symbol(s):
return s in _symbol_to_id and s not in ['~', '^', '_']
def _should_keep_phoneme(p):
return p in _phonemes_to_id and p not in ['~', '^', '_']
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'''
Cleaners are transformations that run over the input text at both training and eval time.
Cleaners can be selected by passing a comma-delimited list of cleaner names as the "cleaners"
hyperparameter. Some cleaners are English-specific. You'll typically want to use:
1. "english_cleaners" for English text
2. "transliteration_cleaners" for non-English text that can be transliterated to ASCII using
the Unidecode library (https://pypi.python.org/pypi/Unidecode)
3. "basic_cleaners" if you do not want to transliterate (in this case, you should also update
the symbols in symbols.py to match your data).
'''
import re
from unidecode import unidecode
from .number_norm import normalize_numbers
# Regular expression matching whitespace:
_whitespace_re = re.compile(r'\s+')
# List of (regular expression, replacement) pairs for abbreviations:
_abbreviations = [(re.compile('\\b%s\\.' % x[0], re.IGNORECASE), x[1])
for x in [
('mrs', 'misess'),
('mr', 'mister'),
('dr', 'doctor'),
('st', 'saint'),
('co', 'company'),
('jr', 'junior'),
('maj', 'major'),
('gen', 'general'),
('drs', 'doctors'),
('rev', 'reverend'),
('lt', 'lieutenant'),
('hon', 'honorable'),
('sgt', 'sergeant'),
('capt', 'captain'),
('esq', 'esquire'),
('ltd', 'limited'),
('col', 'colonel'),
('ft', 'fort'),
]]
def expand_abbreviations(text):
for regex, replacement in _abbreviations:
text = re.sub(regex, replacement, text)
return text
def expand_numbers(text):
return normalize_numbers(text)
def lowercase(text):
return text.lower()
def collapse_whitespace(text):
return re.sub(_whitespace_re, ' ', text).strip()
def convert_to_ascii(text):
return unidecode(text)
def remove_aux_symbols(text):
text = re.sub(r'[\<\>\(\)\[\]\"]+', '', text)
return text
def replace_symbols(text):
text = text.replace(';', ',')
text = text.replace('-', ' ')
text = text.replace(':', ',')
text = text.replace('&', 'and')
return text
def basic_cleaners(text):
'''Basic pipeline that lowercases and collapses whitespace without transliteration.'''
text = lowercase(text)
text = collapse_whitespace(text)
return text
def transliteration_cleaners(text):
'''Pipeline for non-English text that transliterates to ASCII.'''
text = convert_to_ascii(text)
text = lowercase(text)
text = collapse_whitespace(text)
return text
# TODO: elaborate it
def basic_turkish_cleaners(text):
'''Pipeline for Turkish text'''
text = text.replace("I", "ı")
text = lowercase(text)
text = collapse_whitespace(text)
return text
def english_cleaners(text):
'''Pipeline for English text, including number and abbreviation expansion.'''
text = convert_to_ascii(text)
text = lowercase(text)
text = expand_numbers(text)
text = expand_abbreviations(text)
text = replace_symbols(text)
text = remove_aux_symbols(text)
text = collapse_whitespace(text)
return text
def phoneme_cleaners(text):
'''Pipeline for phonemes mode, including number and abbreviation expansion.'''
text = convert_to_ascii(text)
text = expand_numbers(text)
text = expand_abbreviations(text)
text = replace_symbols(text)
text = remove_aux_symbols(text)
text = collapse_whitespace(text)
return text
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# -*- coding: utf-8 -*-
import re
VALID_SYMBOLS = [
'AA', 'AA0', 'AA1', 'AA2', 'AE', 'AE0', 'AE1', 'AE2', 'AH', 'AH0', 'AH1',
'AH2', 'AO', 'AO0', 'AO1', 'AO2', 'AW', 'AW0', 'AW1', 'AW2', 'AY', 'AY0',
'AY1', 'AY2', 'B', 'CH', 'D', 'DH', 'EH', 'EH0', 'EH1', 'EH2', 'ER', 'ER0',
'ER1', 'ER2', 'EY', 'EY0', 'EY1', 'EY2', 'F', 'G', 'HH', 'IH', 'IH0',
'IH1', 'IH2', 'IY', 'IY0', 'IY1', 'IY2', 'JH', 'K', 'L', 'M', 'N', 'NG',
'OW', 'OW0', 'OW1', 'OW2', 'OY', 'OY0', 'OY1', 'OY2', 'P', 'R', 'S', 'SH',
'T', 'TH', 'UH', 'UH0', 'UH1', 'UH2', 'UW', 'UW0', 'UW1', 'UW2', 'V', 'W',
'Y', 'Z', 'ZH'
]
class CMUDict:
'''Thin wrapper around CMUDict data. http://www.speech.cs.cmu.edu/cgi-bin/cmudict'''
def __init__(self, file_or_path, keep_ambiguous=True):
if isinstance(file_or_path, str):
with open(file_or_path, encoding='latin-1') as f:
entries = _parse_cmudict(f)
else:
entries = _parse_cmudict(file_or_path)
if not keep_ambiguous:
entries = {
word: pron
for word, pron in entries.items() if len(pron) == 1
}
self._entries = entries
def __len__(self):
return len(self._entries)
def lookup(self, word):
'''Returns list of ARPAbet pronunciations of the given word.'''
return self._entries.get(word.upper())
@staticmethod
def get_arpabet(word, cmudict, punctuation_symbols):
first_symbol, last_symbol = '', ''
if word and word[0] in punctuation_symbols:
first_symbol = word[0]
word = word[1:]
if word and word[-1] in punctuation_symbols:
last_symbol = word[-1]
word = word[:-1]
arpabet = cmudict.lookup(word)
if arpabet is not None:
return first_symbol + '{%s}' % arpabet[0] + last_symbol
return first_symbol + word + last_symbol
_alt_re = re.compile(r'\([0-9]+\)')
def _parse_cmudict(file):
cmudict = {}
for line in file:
if line and (line[0] >= 'A' and line[0] <= 'Z' or line[0] == "'"):
parts = line.split(' ')
word = re.sub(_alt_re, '', parts[0])
pronunciation = _get_pronunciation(parts[1])
if pronunciation:
if word in cmudict:
cmudict[word].append(pronunciation)
else:
cmudict[word] = [pronunciation]
return cmudict
def _get_pronunciation(s):
parts = s.strip().split(' ')
for part in parts:
if part not in VALID_SYMBOLS:
return None
return ' '.join(parts)
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""" from https://github.com/keithito/tacotron """
import inflect
import re
_inflect = inflect.engine()
_comma_number_re = re.compile(r'([0-9][0-9\,]+[0-9])')
_decimal_number_re = re.compile(r'([0-9]+\.[0-9]+)')
_pounds_re = re.compile(r'£([0-9\,]*[0-9]+)')
_dollars_re = re.compile(r'\$([0-9\.\,]*[0-9]+)')
_ordinal_re = re.compile(r'[0-9]+(st|nd|rd|th)')
_number_re = re.compile(r'[0-9]+')
def _remove_commas(m):
return m.group(1).replace(',', '')
def _expand_decimal_point(m):
return m.group(1).replace('.', ' point ')
def _expand_dollars(m):
match = m.group(1)
parts = match.split('.')
if len(parts) > 2:
return match + ' dollars' # Unexpected format
dollars = int(parts[0]) if parts[0] else 0
cents = int(parts[1]) if len(parts) > 1 and parts[1] else 0
if dollars and cents:
dollar_unit = 'dollar' if dollars == 1 else 'dollars'
cent_unit = 'cent' if cents == 1 else 'cents'
return '%s %s, %s %s' % (dollars, dollar_unit, cents, cent_unit)
elif dollars:
dollar_unit = 'dollar' if dollars == 1 else 'dollars'
return '%s %s' % (dollars, dollar_unit)
elif cents:
cent_unit = 'cent' if cents == 1 else 'cents'
return '%s %s' % (cents, cent_unit)
else:
return 'zero dollars'
def _expand_ordinal(m):
return _inflect.number_to_words(m.group(0))
def _expand_number(m):
num = int(m.group(0))
if 1000 < num < 3000:
if num == 2000:
return 'two thousand'
if 2000 < num < 2010:
return 'two thousand ' + _inflect.number_to_words(num % 100)
if num % 100 == 0:
return _inflect.number_to_words(num // 100) + ' hundred'
return _inflect.number_to_words(num,
andword='',
zero='oh',
group=2).replace(', ', ' ')
return _inflect.number_to_words(num, andword='')
def normalize_numbers(text):
text = re.sub(_comma_number_re, _remove_commas, text)
text = re.sub(_pounds_re, r'\1 pounds', text)
text = re.sub(_dollars_re, _expand_dollars, text)
text = re.sub(_decimal_number_re, _expand_decimal_point, text)
text = re.sub(_ordinal_re, _expand_ordinal, text)
text = re.sub(_number_re, _expand_number, text)
return text
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# -*- coding: utf-8 -*-
'''
Defines the set of symbols used in text input to the model.
The default is a set of ASCII characters that works well for English or text that has been run
through Unidecode. For other data, you can modify _characters. See TRAINING_DATA.md for details.
'''
def make_symbols(characters, phonemes, punctuations='!\'(),-.:;? ', pad='_', eos='~', bos='^'):# pylint: disable=redefined-outer-name
''' Function to create symbols and phonemes '''
_phonemes_sorted = sorted(list(phonemes))
# Prepend "@" to ARPAbet symbols to ensure uniqueness (some are the same as uppercase letters):
_arpabet = ['@' + s for s in _phonemes_sorted]
# Export all symbols:
_symbols = [pad, eos, bos] + list(characters) + _arpabet
_phonemes = [pad, eos, bos] + list(_phonemes_sorted) + list(punctuations)
return _symbols, _phonemes
_pad = '_'
_eos = '~'
_bos = '^'
_characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz!\'(),-.:;? '
_punctuations = '!\'(),-.:;? '
_phoneme_punctuations = '.!;:,?'
# Phonemes definition
_vowels = 'iyɨʉɯuɪʏʊeøɘəɵɤoɛœɜɞʌɔæɐaɶɑɒᵻ'
_non_pulmonic_consonants = 'ʘɓǀɗǃʄǂɠǁʛ'
_pulmonic_consonants = 'pbtdʈɖcɟkɡqɢʔɴŋɲɳnɱmʙrʀⱱɾɽɸβfvθðszʃʒʂʐçʝxɣχʁħʕhɦɬɮʋɹɻjɰlɭʎʟ'
_suprasegmentals = 'ˈˌːˑ'
_other_symbols = 'ʍwɥʜʢʡɕʑɺɧ'
_diacrilics = 'ɚ˞ɫ'
_phonemes = _vowels + _non_pulmonic_consonants + _pulmonic_consonants + _suprasegmentals + _other_symbols + _diacrilics
symbols, phonemes = make_symbols(_characters, _phonemes, _punctuations, _pad, _eos, _bos)
# Generate ALIEN language
# from random import shuffle
# shuffle(phonemes)
if __name__ == '__main__':
print(" > TTS symbols {}".format(len(symbols)))
print(symbols)
print(" > TTS phonemes {}".format(len(phonemes)))
print(phonemes)
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import torch
import numpy as np
def setup_torch_training_env(cudnn_enable, cudnn_benchmark):
torch.backends.cudnn.enabled = cudnn_enable
torch.backends.cudnn.benchmark = cudnn_benchmark
torch.manual_seed(54321)
use_cuda = torch.cuda.is_available()
num_gpus = torch.cuda.device_count()
print(" > Using CUDA: ", use_cuda)
print(" > Number of GPUs: ", num_gpus)
return use_cuda, num_gpus
def check_update(model, grad_clip, ignore_stopnet=False):
r'''Check model gradient against unexpected jumps and failures'''
skip_flag = False
if ignore_stopnet:
grad_norm = torch.nn.utils.clip_grad_norm_([param for name, param in model.named_parameters() if 'stopnet' not in name], grad_clip)
else:
grad_norm = torch.nn.utils.clip_grad_norm_(model.parameters(), grad_clip)
# compatibility with different torch versions
if isinstance(grad_norm, float):
if np.isinf(grad_norm):
print(" | > Gradient is INF !!")
skip_flag = True
else:
if torch.isinf(grad_norm):
print(" | > Gradient is INF !!")
skip_flag = True
return grad_norm, skip_flag
def lr_decay(init_lr, global_step, warmup_steps):
r'''from https://github.com/r9y9/tacotron_pytorch/blob/master/train.py'''
warmup_steps = float(warmup_steps)
step = global_step + 1.
lr = init_lr * warmup_steps**0.5 * np.minimum(step * warmup_steps**-1.5,
step**-0.5)
return lr
def adam_weight_decay(optimizer):
"""
Custom weight decay operation, not effecting grad values.
"""
for group in optimizer.param_groups:
for param in group['params']:
current_lr = group['lr']
weight_decay = group['weight_decay']
factor = -weight_decay * group['lr']
param.data = param.data.add(param.data,
alpha=factor)
return optimizer, current_lr
# pylint: disable=dangerous-default-value
def set_weight_decay(model, weight_decay, skip_list={"decoder.attention.v", "rnn", "lstm", "gru", "embedding"}):
"""
Skip biases, BatchNorm parameters, rnns.
and attention projection layer v
"""
decay = []
no_decay = []
for name, param in model.named_parameters():
if not param.requires_grad:
continue
if len(param.shape) == 1 or any([skip_name in name for skip_name in skip_list]):
no_decay.append(param)
else:
decay.append(param)
return [{
'params': no_decay,
'weight_decay': 0.
}, {
'params': decay,
'weight_decay': weight_decay
}]
# pylint: disable=protected-access
class NoamLR(torch.optim.lr_scheduler._LRScheduler):
def __init__(self, optimizer, warmup_steps=0.1, last_epoch=-1):
self.warmup_steps = float(warmup_steps)
super(NoamLR, self).__init__(optimizer, last_epoch)
def get_lr(self):
step = max(self.last_epoch, 1)
return [
base_lr * self.warmup_steps**0.5 *
min(step * self.warmup_steps**-1.5, step**-0.5)
for base_lr in self.base_lrs
]
def gradual_training_scheduler(global_step, config):
"""Setup the gradual training schedule wrt number
of active GPUs"""
num_gpus = torch.cuda.device_count()
if num_gpus == 0:
num_gpus = 1
new_values = None
# we set the scheduling wrt num_gpus
for values in config.gradual_training:
if global_step * num_gpus >= values[0]:
new_values = values
return new_values[1], new_values[2]
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import torch
import librosa
import matplotlib
matplotlib.use('Agg')
import matplotlib.pyplot as plt
from TTS.utils.text import phoneme_to_sequence, sequence_to_phoneme
def plot_alignment(alignment, info=None, fig_size=(16, 10), title=None):
if isinstance(alignment, torch.Tensor):
alignment_ = alignment.detach().cpu().numpy().squeeze()
else:
alignment_ = alignment
fig, ax = plt.subplots(figsize=fig_size)
im = ax.imshow(
alignment_.T, aspect='auto', origin='lower', interpolation='none')
fig.colorbar(im, ax=ax)
xlabel = 'Decoder timestep'
if info is not None:
xlabel += '\n\n' + info
plt.xlabel(xlabel)
plt.ylabel('Encoder timestep')
# plt.yticks(range(len(text)), list(text))
plt.tight_layout()
if title is not None:
plt.title(title)
return fig
def plot_spectrogram(spectrogram, ap=None, fig_size=(16, 10)):
if isinstance(spectrogram, torch.Tensor):
spectrogram_ = spectrogram.detach().cpu().numpy().squeeze().T
else:
spectrogram_ = spectrogram.T
if ap is not None:
spectrogram_ = ap._denormalize(spectrogram_) # pylint: disable=protected-access
fig = plt.figure(figsize=fig_size)
plt.imshow(spectrogram_, aspect="auto", origin="lower")
plt.colorbar()
plt.tight_layout()
return fig
def visualize(alignment, postnet_output, stop_tokens, text, hop_length, CONFIG, decoder_output=None, output_path=None, figsize=(8, 24)):
if decoder_output is not None:
num_plot = 4
else:
num_plot = 3
label_fontsize = 16
fig = plt.figure(figsize=figsize)
plt.subplot(num_plot, 1, 1)
plt.imshow(alignment.T, aspect="auto", origin="lower", interpolation=None)
plt.xlabel("Decoder timestamp", fontsize=label_fontsize)
plt.ylabel("Encoder timestamp", fontsize=label_fontsize)
# compute phoneme representation and back
if CONFIG.use_phonemes:
seq = phoneme_to_sequence(text, [CONFIG.text_cleaner], CONFIG.phoneme_language, CONFIG.enable_eos_bos_chars, tp=CONFIG.characters if 'characters' in CONFIG.keys() else None)
text = sequence_to_phoneme(seq, tp=CONFIG.characters if 'characters' in CONFIG.keys() else None)
print(text)
plt.yticks(range(len(text)), list(text))
plt.colorbar()
# plot stopnet predictions
plt.subplot(num_plot, 1, 2)
plt.plot(range(len(stop_tokens)), list(stop_tokens))
# plot postnet spectrogram
plt.subplot(num_plot, 1, 3)
librosa.display.specshow(postnet_output.T, sr=CONFIG.audio['sample_rate'],
hop_length=hop_length, x_axis="time", y_axis="linear",
fmin=CONFIG.audio['mel_fmin'],
fmax=CONFIG.audio['mel_fmax'])
plt.xlabel("Time", fontsize=label_fontsize)
plt.ylabel("Hz", fontsize=label_fontsize)
plt.tight_layout()
plt.colorbar()
if decoder_output is not None:
plt.subplot(num_plot, 1, 4)
librosa.display.specshow(decoder_output.T, sr=CONFIG.audio['sample_rate'],
hop_length=hop_length, x_axis="time", y_axis="linear",
fmin=CONFIG.audio['mel_fmin'],
fmax=CONFIG.audio['mel_fmax'])
plt.xlabel("Time", fontsize=label_fontsize)
plt.ylabel("Hz", fontsize=label_fontsize)
plt.tight_layout()
plt.colorbar()
if output_path:
print(output_path)
fig.savefig(output_path)
plt.close()