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import re, io, os, stat, logging |
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import tempfile, subprocess |
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import requests |
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import torch |
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import traceback |
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import numpy as np |
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import scipy |
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from TTS.api import TTS |
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from flask import Flask, Blueprint, request, jsonify, send_file |
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import torch |
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import torchaudio |
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logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s') |
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app = Flask(__name__) |
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from qili import upload_bytes |
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tts=None |
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model=None |
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sample_root= os.environ.get('XTTS_SAMPLE_DIR') |
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if(sample_root==None): |
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sample_root=f'{os.getcwd()}/samples' |
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if not os.path.exists(sample_root): |
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os.makedirs(sample_root) |
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default_sample=f'{os.path.dirname(os.path.abspath(__file__))}/sample.wav', f'{sample_root}/sample.pt' |
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ffmpeg=f'{os.path.dirname(os.path.abspath(__file__))}/ffmpeg' |
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def predict(text, sample=None, language="zh"): |
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global tts |
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global model |
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try: |
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if tts is None: |
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model_name="tts_models/multilingual/multi-dataset/xtts_v2" |
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logging.info(f"loading model {model_name} ...") |
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tts = TTS( |
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model_name, |
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progress_bar=False |
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) |
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model=tts.synthesizer.tts_model |
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model.__get_conditioning_latents=model.get_conditioning_latents |
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model.get_conditioning_latents=get_conditioning_latents |
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logging.info("model is ready") |
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text= re.sub("([^\x00-\x7F]|\w)(\.|\。|\?)",r"\1 \2\2",text) |
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wav = tts.tts( |
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text, |
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language=language if language is not None else "zh", |
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speaker_wav=sample if sample is not None else default_sample[0], |
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) |
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with io.BytesIO() as wav_buffer: |
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if torch.is_tensor(wav): |
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wav = wav.cpu().numpy() |
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if isinstance(wav, list): |
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wav = np.array(wav) |
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wav_norm = wav * (32767 / max(0.01, np.max(np.abs(wav)))) |
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wav_norm = wav_norm.astype(np.int16) |
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scipy.io.wavfile.write(wav_buffer, tts.synthesizer.output_sample_rate, wav_norm) |
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wav_bytes = wav_buffer.getvalue() |
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url= upload_bytes(wav_bytes, ext=".wav") |
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logging.debug(f'wav is at {url}') |
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return url |
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except Exception as e: |
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traceback.print_exc() |
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return str(e) |
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@app.route("/") |
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def convert(): |
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text = request.args.get('text') |
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if text is None: |
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return jsonify({'error': 'text is missing'}), 400 |
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sample = request.args.get('sample') |
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language = request.args.get('language') |
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return predict(text, sample, language) |
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@app.route("/play") |
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def play(): |
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url=predict() |
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return f''' |
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<html> |
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<body> |
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<audio controls autoplay> |
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<source src="{url}" type="audio/wav"> |
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Your browser does not support the audio element. |
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</audio> |
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</body> |
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</html> |
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''' |
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def get_conditioning_latents(audio_path, **others): |
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global model |
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speaker_wav, pt_file=download(audio_path) |
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try: |
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if pt_file != None: |
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( |
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gpt_cond_latent, |
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speaker_embedding, |
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) = torch.load(pt_file) |
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logging.debug(f'sample wav info loaded from {pt_file}') |
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except: |
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( |
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gpt_cond_latent, |
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speaker_embedding, |
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) = model.__get_conditioning_latents(audio_path=speaker_wav, **others) |
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torch.save((gpt_cond_latent,speaker_embedding), pt_file) |
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logging.debug(f'sample wav info saved to {pt_file}') |
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return gpt_cond_latent,speaker_embedding |
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def download(url): |
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try: |
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response = requests.get(url) |
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if response.status_code == 200: |
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id=f'{sample_root}/{response.headers["etag"]}.pt'.replace('"','') |
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if(os.path.exists(id)): |
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return "", id |
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with tempfile.NamedTemporaryFile(mode="wb", delete=True) as temp_file: |
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temp_file.write(response.content) |
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return trim_sample_audio(os.path.abspath(temp_file.name)), id |
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except: |
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return default_sample |
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def trim_sample_audio(speaker_wav): |
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global ffmpeg |
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try: |
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lowpass_highpass = "lowpass=8000,highpass=75," |
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trim_silence = "areverse,silenceremove=start_periods=1:start_silence=0:start_threshold=0.02,areverse,silenceremove=start_periods=1:start_silence=0:start_threshold=0.02," |
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out_filename=speaker_wav.replace(".wav","_trimed.wav") |
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shell_command = f"{ffmpeg} -y -i {speaker_wav} -af {lowpass_highpass}{trim_silence} {out_filename}".split(" ") |
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subprocess.run( |
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[item for item in shell_command], |
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capture_output=False, |
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text=True, |
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check=True, |
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) |
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return out_filename |
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except: |
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traceback.print_exc() |
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return speaker_wav |
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logging.info("xtts is ready") |
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