init
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zengguoyang
279
app.py
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279
app.py
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import os
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import numpy as np
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import torch
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import gradio as gr
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import spaces
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from typing import Optional, Tuple
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from funasr import AutoModel
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from pathlib import Path
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os.environ["TOKENIZERS_PARALLELISM"] = "false"
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if os.environ.get("HF_REPO_ID", "").strip() == "":
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os.environ["HF_REPO_ID"] = "openbmb/VoxCPM-0.5B"
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import voxcpm
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class VoxCPMDemo:
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def __init__(self) -> None:
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self.device = "cuda" if torch.cuda.is_available() else "cpu"
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print(f"🚀 Running on device: {self.device}")
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# ASR model for prompt text recognition
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self.asr_model_id = "iic/SenseVoiceSmall"
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self.asr_model: Optional[AutoModel] = AutoModel(
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model=self.asr_model_id,
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disable_update=True,
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log_level='DEBUG',
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device="cuda:0" if self.device == "cuda" else "cpu",
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)
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# TTS model (lazy init)
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self.voxcpm_model: Optional[voxcpm.VoxCPM] = None
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self.default_local_model_dir = "./models/VoxCPM-0.5B"
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# ---------- Model helpers ----------
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def _resolve_model_dir(self) -> str:
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"""
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Resolve model directory:
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1) Use local checkpoint directory if exists
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2) If HF_REPO_ID env is set, download into models/{repo}
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3) Fallback to 'models'
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"""
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if os.path.isdir(self.default_local_model_dir):
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return self.default_local_model_dir
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repo_id = os.environ.get("HF_REPO_ID", "").strip()
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if len(repo_id) > 0:
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target_dir = os.path.join("models", repo_id.replace("/", "__"))
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if not os.path.isdir(target_dir):
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try:
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from huggingface_hub import snapshot_download # type: ignore
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os.makedirs(target_dir, exist_ok=True)
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print(f"Downloading model from HF repo '{repo_id}' to '{target_dir}' ...")
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snapshot_download(repo_id=repo_id, local_dir=target_dir, local_dir_use_symlinks=False)
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except Exception as e:
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print(f"Warning: HF download failed: {e}. Falling back to 'data'.")
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return "models"
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return target_dir
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return "models"
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def get_or_load_voxcpm(self) -> voxcpm.VoxCPM:
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if self.voxcpm_model is not None:
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return self.voxcpm_model
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print("Model not loaded, initializing...")
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model_dir = self._resolve_model_dir()
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print(f"Using model dir: {model_dir}")
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self.voxcpm_model = voxcpm.VoxCPM(voxcpm_model_path=model_dir)
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print("Model loaded successfully.")
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return self.voxcpm_model
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# ---------- Functional endpoints ----------
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def prompt_wav_recognition(self, prompt_wav: Optional[str]) -> str:
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if prompt_wav is None:
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return ""
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res = self.asr_model.generate(input=prompt_wav, language="auto", use_itn=True)
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text = res[0]["text"].split('|>')[-1]
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return text
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def generate_tts_audio(
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self,
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text_input: str,
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prompt_wav_path_input: Optional[str] = None,
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prompt_text_input: Optional[str] = None,
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cfg_value_input: float = 2.0,
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inference_timesteps_input: int = 10,
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do_normalize: bool = True,
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denoise: bool = True,
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) -> Tuple[int, np.ndarray]:
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"""
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Generate speech from text using VoxCPM; optional reference audio for voice style guidance.
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Returns (sample_rate, waveform_numpy)
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"""
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current_model = self.get_or_load_voxcpm()
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text = (text_input or "").strip()
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if len(text) == 0:
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raise ValueError("Please input text to synthesize.")
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prompt_wav_path = prompt_wav_path_input if prompt_wav_path_input else None
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prompt_text = prompt_text_input if prompt_text_input else None
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print(f"Generating audio for text: '{text[:60]}...'")
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wav = current_model.generate(
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text=text,
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prompt_text=prompt_text,
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prompt_wav_path=prompt_wav_path,
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cfg_value=float(cfg_value_input),
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inference_timesteps=int(inference_timesteps_input),
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normalize=do_normalize,
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denoise=denoise,
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)
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return (16000, wav)
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# ---------- UI Builders ----------
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def create_demo_interface(demo: VoxCPMDemo):
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"""Build the Gradio UI for VoxCPM demo."""
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# static assets (logo path)
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gr.set_static_paths(paths=[Path.cwd().absolute()/"assets"])
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with gr.Blocks(
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theme=gr.themes.Soft(
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primary_hue="blue",
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secondary_hue="gray",
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neutral_hue="slate",
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font=[gr.themes.GoogleFont("Inter"), "Arial", "sans-serif"]
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),
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css="""
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.logo-container {
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text-align: center;
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margin: 0.5rem 0 1rem 0;
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}
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.logo-container img {
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height: 80px;
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width: auto;
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max-width: 200px;
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display: inline-block;
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}
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/* Bold accordion labels */
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#acc_quick details > summary,
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#acc_tips details > summary {
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font-weight: 600 !important;
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font-size: 1.1em !important;
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}
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/* Bold labels for specific checkboxes */
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#chk_denoise label,
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#chk_denoise span,
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#chk_normalize label,
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#chk_normalize span {
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font-weight: 600;
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}
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"""
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) as interface:
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# Header logo
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gr.HTML('<div class="logo-container"><img src="/gradio_api/file=assets/voxcpm_logo.png" alt="VoxCPM Logo"></div>')
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# Quick Start
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with gr.Accordion("📋 Quick Start Guide ｜快速入门", open=False, elem_id="acc_quick"):
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gr.Markdown("""
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### How to Use ｜使用说明
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1. **(Optional) Provide a Voice Prompt** - Upload or record an audio clip to provide the desired voice characteristics for synthesis.
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**（可选）提供参考声音** - 上传或录制一段音频，为声音合成提供音色、语调和情感等个性化特征
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2. **(Optional) Enter prompt text** - If you provided a voice prompt, enter the corresponding transcript here (auto-recognition available).
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**（可选项）输入参考文本** - 如果提供了参考语音，请输入其对应的文本内容（支持自动识别）。
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3. **Enter target text** - Type the text you want the model to speak.
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**输入目标文本** - 输入您希望模型朗读的文字内容。
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4. **Generate Speech** - Click the "Generate" button to create your audio.
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**生成语音** - 点击"生成"按钮，即可为您创造出音频。
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""")
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# Pro Tips
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with gr.Accordion("💡 Pro Tips ｜使用建议", open=False, elem_id="acc_tips"):
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gr.Markdown(f"""
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### Prompt Speech Enhancement｜参考语音降噪
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- **Enable** to remove background noise for a clean, studio-like voice, with an external ZipEnhancer component.
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**启用**：通过 ZipEnhancer 组件消除背景噪音，获得更好的音质。
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- **Disable** to preserve the original audio's background atmosphere.
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**禁用**：保留原始音频的背景环境声，如果想复刻相应声学环境。
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### Text Normalization｜文本正则化
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- **Enable** to process general text with an external WeTextProcessing component.
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**启用**：使用 WeTextProcessing 组件，可处理常见文本。
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- **Disable** to use VoxCPM's native text understanding ability. For example, it supports phonemes input ({HH AH0 L OW1}), try it!
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**禁用**：将使用 VoxCPM 内置的文本理解能力。如，支持音素输入（如 {da4}{jia1}好）和公式符号合成，尝试一下！
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### CFG Value｜CFG 值
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- **Lower CFG** if the voice prompt sounds strained or expressive.
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**调低**：如果提示语音听起来不自然或过于夸张。
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- **Higher CFG** for better adherence to the prompt speech style or input text.
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**调高**：为更好地贴合提示音频的风格或输入文本。
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### Inference Timesteps｜推理时间步
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- **Lower** for faster synthesis speed.
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**调低**：合成速度更快。
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- **Higher** for better synthesis quality.
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**调高**：合成质量更佳。
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### Long Text (e.g., >5 min speech)｜长文本 (如 >5分钟的合成语音)
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While VoxCPM can handle long texts directly, we recommend using empty lines to break very long content into paragraphs; the model will then synthesize each paragraph individually.
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虽然 VoxCPM 支持直接生成长文本，但如果目标文本过长，我们建议使用换行符将内容分段；模型将对每个段落分别合成。
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""")
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# Main controls
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with gr.Row():
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with gr.Column():
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prompt_wav = gr.Audio(
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sources=["upload", 'microphone'],
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type="filepath",
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label="Prompt Speech",
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value="./examples/example.wav",
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)
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DoDenoisePromptAudio = gr.Checkbox(
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value=False,
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label="Prompt Speech Enhancement",
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elem_id="chk_denoise",
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info="We use ZipEnhancer model to denoise the prompt audio."
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)
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with gr.Row():
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prompt_text = gr.Textbox(
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value="Just by listening a few minutes a day, you'll be able to eliminate negative thoughts by conditioning your mind to be more positive.",
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label="Prompt Text",
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placeholder="Please enter the prompt text. Automatic recognition is supported, and you can correct the results yourself..."
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)
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run_btn = gr.Button("Generate Speech", variant="primary")
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with gr.Column():
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cfg_value = gr.Slider(
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minimum=1.0,
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maximum=3.0,
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value=2.0,
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step=0.1,
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label="CFG Value (Guidance Scale)",
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info="Higher values increase adherence to prompt, lower values allow more creativity"
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)
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inference_timesteps = gr.Slider(
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minimum=4,
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maximum=30,
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value=10,
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step=1,
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label="Inference Timesteps",
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info="Number of inference timesteps for generation (higher values may improve quality but slower)"
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)
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with gr.Row():
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text = gr.Textbox(
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value="VoxCPM is an innovative end-to-end TTS model from ModelBest, designed to generate highly realistic speech.",
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label="Target Text",
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info="Default processing splits text on \\n into paragraphs; each is synthesized as a chunk and then concatenated into the final audio."
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)
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with gr.Row():
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DoNormalizeText = gr.Checkbox(
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value=False,
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label="Text Normalization",
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elem_id="chk_normalize",
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info="We use WeTextPorcessing library to normalize the input text."
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)
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audio_output = gr.Audio(label="Output Audio")
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# Wiring
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run_btn.click(
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fn=demo.generate_tts_audio,
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inputs=[text, prompt_wav, prompt_text, cfg_value, inference_timesteps, DoNormalizeText, DoDenoisePromptAudio],
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outputs=[audio_output],
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show_progress=True,
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api_name="generate",
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)
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prompt_wav.change(fn=demo.prompt_wav_recognition, inputs=[prompt_wav], outputs=[prompt_text])
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return interface
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def run_demo(server_name: str = "localhost", server_port: int = 7860, show_error: bool = True):
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demo = VoxCPMDemo()
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interface = create_demo_interface(demo)
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# Recommended to enable queue on Spaces for better throughput
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interface.queue(max_size=10).launch(server_name=server_name, server_port=server_port, show_error=show_error)
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if __name__ == "__main__":
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run_demo()
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