本地部署 faster-whisper

[1. 创建虚拟环境](#1. 创建虚拟环境)
[2. 安装依赖模块](#2. 安装依赖模块)
[3. 创建 Web UI](#3. 创建 Web UI)
[4. 启动 Web UI](#4. 启动 Web UI)
[5. 访问 Web UI](#5. 访问 Web UI)

1. 创建虚拟环境

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conda create -n faster-whisper python=3.11 -y
conda activate faster-whisper

2. 安装依赖模块

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pip install torch==2.2.2 torchvision==0.17.2 torchaudio==2.2.2 --index-url https://download.pytorch.org/whl/cu118
pip install faster-whisper
conda install matplotlib
pip install gradio

3. 创建 Web UI

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# webui.py
import gradio as gr
from faster_whisper import WhisperModel

# Initialize the model
# model_size = "large-v3"
model_size = "Systran/faster-whisper-large-v3"
model = WhisperModel(model_size, device="cuda", compute_type="float16")

def transcribe_audio(audio_file, language):
    # Transcribe the audio
    segments, info = model.transcribe(audio_file, beam_size=5, language=language)

    # Prepare the output
    transcription = ""
    for segment in segments:
        transcription += f"[{segment.start:.2f}s -> {segment.end:.2f}s] {segment.text}\n"

    detected_language = f"Detected language: {info.language} (probability: {info.language_probability:.2f})"

    return detected_language, transcription

# Define Gradio interface
iface = gr.Interface(
    fn=transcribe_audio,
    inputs=[
        gr.Audio(type="filepath", label="Upload Audio"),
        gr.Dropdown(["en", "zh", "ja"], label="Select Language", value="en")
    ],
    outputs=[
        gr.Textbox(label="Detected Language"),
        gr.Textbox(label="Transcription", lines=20)
    ],
    allow_flagging='never',
    title="Audio Transcription with Faster Whisper",
    description="Upload an audio file and select the language to transcribe the audio to text. Choose 'auto' for automatic language detection."
)

# Launch the interface
iface.launch()

4. 启动 Web UI

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python webui.py

5. 访问 Web UI

使用浏览器打开 http://localhost:7860，

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