Active the multispeaker mode in multilingual training

tests/tts_tests/test_vits_multilingual_train.py

@@ -44,6 +44,9 @@ config.audio.trim_db = 60
 
 # active multilingual mode
 config.model_args.use_language_embedding = True
+# active multispeaker mode
+config.model_args.use_speaker_embedding = True
+config.model_args.use_d_vector_file = False
 # active language sampler
 config.use_language_weighted_sampler = True