python如何根据音频自动给视频底部增加字幕变成新视频？

这是一款python源码，实现将没有文字字幕的视频，通过语音识别技术识别为文本，然后重写将字幕添加到视频底部的效果代码。

注意调用的是google语音识别服务，确保你的网络能访问谷歌。

import os
import speech_recognition as sr
from moviepy.editor import VideoFileClip, TextClip, CompositeVideoClip
from pydub import AudioSegment

def extract_audio(video_path):
    video = VideoFileClip(video_path)
    audio = video.audio
    audio.write_audiofile("temp_audio.wav")
    return "temp_audio.wav"

def transcribe_audio(audio_path):
    recognizer = sr.Recognizer()
    audio = AudioSegment.from_wav(audio_path)
    
    # 将音频分割成较小的片段
    chunk_length_ms = 10000  # 10秒
    chunks = [audio[i:i+chunk_length_ms] for i in range(0, len(audio), chunk_length_ms)]
    
    transcriptions = []
    for i, chunk in enumerate(chunks):
        chunk.export(f"temp_chunk_{i}.wav", format="wav")
        with sr.AudioFile(f"temp_chunk_{i}.wav") as source:
            audio_data = ...

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如果出现这个错误就是要安装ImageMagick

[WinError 2] 系统找不到指定的文件。.

.This error can be due to the fact that ImageMagick is not installed on your computer, or (for Windows users) that you didn...

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