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Python API implementation #2195
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erogol 2cabe3f
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Original file line number | Diff line number | Diff line change |
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from pathlib import Path | ||
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from TTS.utils.manage import ModelManager | ||
from TTS.utils.synthesizer import Synthesizer | ||
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class TTS: | ||
"""TODO: Add voice conversion and Capacitron support.""" | ||
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def __init__(self, model_name: str = None, progress_bar: bool = True, gpu=False): | ||
"""🐸TTS python interface that allows to load and use the released models. | ||
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Example with a multi-speaker model: | ||
>>> from TTS.api import TTS | ||
>>> tts = TTS(TTS.list_models()[0]) | ||
>>> wav = tts.tts("This is a test! This is also a test!!", speaker=tts.speakers[0], language=tts.languages[0]) | ||
>>> tts.tts_to_file(text="Hello world!", speaker=tts.speakers[0], language=tts.languages[0], file_path="output.wav") | ||
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Example with a single-speaker model: | ||
>>> tts = TTS(model_name="tts_models/de/thorsten/tacotron2-DDC", progress_bar=False, gpu=False) | ||
>>> tts.tts_to_file(text="Ich bin eine Testnachricht.", file_path="output.wav") | ||
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Args: | ||
model_name (str, optional): Model name to load. You can list models by ```tts.models```. Defaults to None. | ||
progress_bar (bool, optional): Whether to pring a progress bar while downloading a model. Defaults to True. | ||
gpu (bool, optional): Enable/disable GPU. Some models might be too slow on CPU. Defaults to False. | ||
""" | ||
self.manager = ModelManager(models_file=self.get_models_file_path(), progress_bar=progress_bar, verbose=False) | ||
self.synthesizer = None | ||
if model_name: | ||
self.load_model_by_name(model_name, gpu) | ||
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@property | ||
def models(self): | ||
return self.manager.list_tts_models() | ||
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@property | ||
def is_multi_speaker(self): | ||
if hasattr(self.synthesizer.tts_model, "speaker_manager") and self.synthesizer.tts_model.speaker_manager: | ||
return self.synthesizer.tts_model.speaker_manager.num_speakers > 1 | ||
return False | ||
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@property | ||
def is_multi_lingual(self): | ||
if hasattr(self.synthesizer.tts_model, "language_manager") and self.synthesizer.tts_model.language_manager: | ||
return self.synthesizer.tts_model.language_manager.num_languages > 1 | ||
return False | ||
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@property | ||
def speakers(self): | ||
if not self.is_multi_speaker: | ||
return None | ||
return self.synthesizer.tts_model.speaker_manager.speaker_names | ||
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@property | ||
def languages(self): | ||
if not self.is_multi_lingual: | ||
return None | ||
return self.synthesizer.tts_model.language_manager.language_names | ||
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@staticmethod | ||
def get_models_file_path(): | ||
return Path(__file__).parent / ".models.json" | ||
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@staticmethod | ||
def list_models(): | ||
manager = ModelManager(models_file=TTS.get_models_file_path(), progress_bar=False, verbose=False) | ||
return manager.list_tts_models() | ||
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def download_model_by_name(self, model_name: str): | ||
model_path, config_path, model_item = self.manager.download_model(model_name) | ||
if model_item["default_vocoder"] is None: | ||
return model_path, config_path, None, None | ||
vocoder_path, vocoder_config_path, _ = self.manager.download_model(model_item["default_vocoder"]) | ||
return model_path, config_path, vocoder_path, vocoder_config_path | ||
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def load_model_by_name(self, model_name: str, gpu: bool = False): | ||
model_path, config_path, vocoder_path, vocoder_config_path = self.download_model_by_name(model_name) | ||
# init synthesizer | ||
# None values are fetch from the model | ||
self.synthesizer = Synthesizer( | ||
tts_checkpoint=model_path, | ||
tts_config_path=config_path, | ||
tts_speakers_file=None, | ||
tts_languages_file=None, | ||
vocoder_checkpoint=vocoder_path, | ||
vocoder_config=vocoder_config_path, | ||
encoder_checkpoint=None, | ||
encoder_config=None, | ||
use_cuda=gpu, | ||
) | ||
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def _check_arguments(self, speaker: str = None, language: str = None): | ||
if self.is_multi_speaker and speaker is None: | ||
raise ValueError("Model is multi-speaker but no speaker is provided.") | ||
if self.is_multi_lingual and language is None: | ||
raise ValueError("Model is multi-lingual but no language is provided.") | ||
if not self.is_multi_speaker and speaker is not None: | ||
raise ValueError("Model is not multi-speaker but speaker is provided.") | ||
if not self.is_multi_lingual and language is not None: | ||
raise ValueError("Model is not multi-lingual but language is provided.") | ||
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def tts(self, text: str, speaker: str = None, language: str = None): | ||
"""Convert text to speech. | ||
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Args: | ||
text (str): | ||
Input text to synthesize. | ||
speaker (str, optional): | ||
Speaker name for multi-speaker. You can check whether loaded model is multi-speaker by | ||
`tts.is_multi_speaker` and list speakers by `tts.speakers`. Defaults to None. | ||
language (str, optional): | ||
Language code for multi-lingual models. You can check whether loaded model is multi-lingual | ||
`tts.is_multi_lingual` and list available languages by `tts.languages`. Defaults to None. | ||
""" | ||
self._check_arguments(speaker=speaker, language=language) | ||
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wav = self.synthesizer.tts( | ||
text=text, | ||
speaker_name=speaker, | ||
language_name=language, | ||
speaker_wav=None, | ||
reference_wav=None, | ||
style_wav=None, | ||
style_text=None, | ||
reference_speaker_name=None, | ||
) | ||
return wav | ||
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def tts_to_file(self, text: str, speaker: str = None, language: str = None, file_path: str = "output.wav"): | ||
"""Convert text to speech. | ||
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Args: | ||
text (str): | ||
Input text to synthesize. | ||
speaker (str, optional): | ||
Speaker name for multi-speaker. You can check whether loaded model is multi-speaker by | ||
`tts.is_multi_speaker` and list speakers by `tts.speakers`. Defaults to None. | ||
language (str, optional): | ||
Language code for multi-lingual models. You can check whether loaded model is multi-lingual | ||
`tts.is_multi_lingual` and list available languages by `tts.languages`. Defaults to None. | ||
file_path (str, optional): | ||
Output file path. Defaults to "output.wav". | ||
""" | ||
wav = self.tts(text=text, speaker=speaker, language=language) | ||
self.synthesizer.save_wav(wav=wav, path=file_path) |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,36 @@ | ||
import os | ||
import unittest | ||
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from tests import get_tests_output_path | ||
from TTS.api import TTS | ||
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OUTPUT_PATH = os.path.join(get_tests_output_path(), "test_python_api.wav") | ||
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class TTSTest(unittest.TestCase): | ||
def test_single_speaker_model(self): | ||
tts = TTS(model_name="tts_models/de/thorsten/tacotron2-DDC", progress_bar=False, gpu=False) | ||
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error_raised = False | ||
try: | ||
tts.tts_to_file(text="Ich bin eine Testnachricht.", speaker="Thorsten", language="de") | ||
except ValueError: | ||
error_raised = True | ||
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tts.tts_to_file(text="Ich bin eine Testnachricht.", file_path=OUTPUT_PATH) | ||
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self.assertTrue(error_raised) | ||
self.assertFalse(tts.is_multi_speaker) | ||
self.assertFalse(tts.is_multi_lingual) | ||
self.assertIsNone(tts.speakers) | ||
self.assertIsNone(tts.languages) | ||
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def test_multi_speaker_multi_lingual_model(self): | ||
tts = TTS() | ||
tts.load_model_by_name(tts.models[0]) # YourTTS | ||
tts.tts_to_file(text="Hello world!", speaker=tts.speakers[0], language=tts.languages[0], file_path=OUTPUT_PATH) | ||
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self.assertTrue(tts.is_multi_speaker) | ||
self.assertTrue(tts.is_multi_lingual) | ||
self.assertGreater(len(tts.speakers), 1) | ||
self.assertGreater(len(tts.languages), 1) |
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I don't know a good solution, but it would be nice to be able to have that list of model before instantiating that class with the model name.
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maybe we could create a static method called list_tts_models and inside of it instance ModelManager and called the method list_models.
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We can keep the models in a python file instead of JSON and we can list it.
However can you give a code example for your intended use?
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Or just read the JSON
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This is already what
tts.models
does. Are you suggesting something different?There was a problem hiding this comment.
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But it works only when the class is already initialized because it uses a model manager instance. But this could be avoided if models was a
@staticmethod
instead.