python中如何实现 输入台词识别固定视频的画面 进行剪辑

在Python中实现通过台词识别剪辑视频画面，可以通过以下步骤完成。这里提供一个基于语音识别和视频处理的实现方案：

主要步骤及代码实现

import os
from moviepy.editor import VideoFileClip
import speech_recognition as sr
from pydub import AudioSegment
from pydub.silence import split_on_silence

def video_to_audio(video_path, audio_path="temp.wav"):
    """提取视频中的音频"""
    video = VideoFileClip(video_path)
    video.audio.write_audiofile(audio_path)
    return audio_path

def transcribe_audio(audio_path):
    """将音频转换为带时间戳的文字"""
    r = sr.Recognizer()
    
    # 分割长音频为短片段（解决内存问题）
    audio = AudioSegment.from_wav(audio_path)
    chunks = split_on_silence(
        audio,
        min_silence_len=500,
        silence_thresh=-40,
        keep_silence=250
    )

    transcripts = []
    for i, chunk in