如何使用python使音频文件中的特定单词静音？

pip install pydub
pip install SpeechRecognition

from pydub import AudioSegment
import speech_recognition as sr

# 音频文件路径
audio_file_path = 'path_to_your_audio_file.mp3'

# 特定单词列表
words_to_mute = ['word1', 'word2']

# 使用speech_recognition识别音频中的文本
r = sr.Recognizer()
with sr.AudioFile(audio_file_path) as source:
    audio = r.record(source)
    text = r.recognize_google(audio)

# 将文本分割成单词
words = text.split()

# 创建一个新的AudioSegment对象，初始为空
new_audio = AudioSegment.empty()

# 遍历单词，将不需要静音的部分添加到新音频中
for i, word in enumerate(words):
    if word.lower() not in words_to_mute:
        # 找到单词在音频中的起始和结束时间
        start_time = sum(len(w) + 1 for w in words[:i]) * 100  # 假设每个单词之间有短暂的停顿
        end_time = start_time + len(word) * 100  # 假设每个字符持续时间相同
        # 将这部分音频添加到新音频中
        new_audio += AudioSegment.from_file(audio_file_path, format="mp3")[start_time:end_time]
    else:
        # 如果单词需要静音，添加相应长度的静音段
        start_time = sum(len(w) + 1 for w in words[:i]) * 100
        end_time = start_time + len(word) * 100
        new_audio += AudioSegment.silent(duration=end_time - start_time)

# 导出新的音频文件
new_audio.export('path_to_new_audio_file.mp3', format="mp3")