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| import os | |
| import glob | |
| import logging | |
| from typing import cast | |
| from threading import Lock | |
| import gradio as gr | |
| from balacoon_tts import TTS | |
| from huggingface_hub import hf_hub_download, list_repo_files | |
| # locker that disallow access to the tts object from more then one thread | |
| locker = Lock() | |
| # global tts module, initialized from a model selected | |
| tts = None | |
| # path to the model that is currently used in tts | |
| cur_model_path = None | |
| # cache of speakers, maps model name to speaker list | |
| model_to_speakers = dict() | |
| model_repo_dir = "/data" | |
| for name in list_repo_files(repo_id="balacoon/tts"): | |
| if not os.path.isfile(os.path.join(model_repo_dir, name)): | |
| hf_hub_download( | |
| repo_id="balacoon/tts", | |
| filename=name, | |
| local_dir=model_repo_dir, | |
| ) | |
| def main(): | |
| logging.basicConfig(level=logging.INFO) | |
| with gr.Blocks() as demo: | |
| gr.Markdown( | |
| """ | |
| <h1 align="center">Balacoon🦝 Text-to-Speech</h1> | |
| 1. Write an utterance to generate, | |
| 2. Select the model to synthesize with | |
| 3. Select speaker | |
| 4. Hit "Generate" and listen to the result! | |
| You can learn more about models available | |
| [here](https://huggingface.co/balacoon/tts). | |
| Visit [Balacoon website](https://balacoon.com/) for more info. | |
| """ | |
| ) | |
| with gr.Row(variant="panel"): | |
| text = gr.Textbox(label="Text", placeholder="Type something here...") | |
| with gr.Row(): | |
| with gr.Column(variant="panel"): | |
| repo_files = os.listdir(model_repo_dir) | |
| model_files = [x for x in repo_files if x.endswith("_cpu.addon")] | |
| model_name = gr.Dropdown( | |
| label="Model", | |
| choices=model_files, | |
| ) | |
| with gr.Column(variant="panel"): | |
| speaker = gr.Dropdown(label="Speaker", choices=[]) | |
| def set_model(model_name_str: str): | |
| """ | |
| gets value from `model_name`. either | |
| uses cached list of speakers for the given model name | |
| or loads the addon and checks what are the speakers. | |
| """ | |
| global model_to_speakers | |
| if model_name_str in model_to_speakers: | |
| speakers = model_to_speakers[model_name_str] | |
| else: | |
| global tts, cur_model_path, locker | |
| with locker: | |
| # need to load this model to learn the list of speakers | |
| model_path = os.path.join(model_repo_dir, model_name_str) | |
| if tts is not None: | |
| del tts | |
| tts = TTS(model_path) | |
| cur_model_path = model_path | |
| speakers = tts.get_speakers() | |
| model_to_speakers[model_name_str] = speakers | |
| value = speakers[-1] | |
| return gr.Dropdown.update( | |
| choices=speakers, value=value, visible=True | |
| ) | |
| model_name.change(set_model, inputs=model_name, outputs=speaker) | |
| with gr.Row(variant="panel"): | |
| generate = gr.Button("Generate") | |
| with gr.Row(variant="panel"): | |
| audio = gr.Audio() | |
| def synthesize_audio(text_str: str, model_name_str: str, speaker_str: str): | |
| """ | |
| gets utterance to synthesize from `text` Textbox | |
| and speaker name from `speaker` dropdown list. | |
| speaker name might be empty for single-speaker models. | |
| Synthesizes the waveform and updates `audio` with it. | |
| """ | |
| if not text_str or not model_name_str or not speaker_str: | |
| logging.info("text, model name or speaker are not provided") | |
| return None | |
| expected_model_path = os.path.join(model_repo_dir, model_name_str) | |
| global tts, cur_model_path, locker | |
| with locker: | |
| if expected_model_path != cur_model_path: | |
| # reload model | |
| if tts is not None: | |
| del tts | |
| tts = TTS(expected_model_path) | |
| cur_model_path = expected_model_path | |
| if len(text_str) > 1024: | |
| # truncate the text | |
| text_str = text_str[:1024] | |
| samples = tts.synthesize(text_str, speaker_str) | |
| return gr.Audio.update(value=(tts.get_sampling_rate(), samples)) | |
| generate.click(synthesize_audio, inputs=[text, model_name, speaker], outputs=audio) | |
| demo.queue(concurrency_count=1).launch() | |
| if __name__ == "__main__": | |
| main() |