注：moviepy包也可以进行视频的合并和切分，暂时没有需求，所以不予实现。
如果觉得好用，请不要吝啬你的点赞哟~
另外，如果有其他需求，欢迎私信我，有条件的话，我会尽可能实现。
# 内容描述：采用moviepy包进行音频的合并和切分 # Author: AbaloneVH Version: 2024/03/04 14:10 # 前置要求：采用 pip install moviepy 安装该包 # 具体功能 # 1. 根据给定子音频时长切分音频。 # 切分后的音频名为原音频名加“_”和序号。除最后一个子音频外，所有子音频的时长都是给定的子音频时长。 # 示例：audio_split_by_duration(“D:/Desktop/a.mp3”, split_duration=120) # 子音频时长为 120 秒 # 2. 根据给定子音频大小切分音频。 # 切分后的音频名为原音频名加“_”和序号。除最后一个子音频外，所有子音频的大小均不超过给定子音频大小。 # 【目前的切分方式为按时长均匀切分，该优化方式可以根据需求进一步优化】 # 示例：audio_split_by_size(“D:/Desktop/a.mp3”, split_size=1024*2) # 子音频大小不超过 2 MB # 3. 根据给定的子音频列表，按顺序拼接给定的子音频。 # 需指定拼接后音频的名称。 # 示例：audio_concat([“D:/Desktop/a.mp3”, “D:/Desktop/b.mp3”], file_concat_name=“D:/Desktop/ab.mp3”) # 拼接”a.mp3“和”b.mp3“文件，得到的文件为”ab.mp3”
import os
import numpy as np
from moviepy.editor import *def audio_split_by_duration(file_name, split_duration=60):"""Split the audio file into segments with the given duration.The split segments are with the same extension name as the original file.Author: AbaloneVH Version: 2024/03/04 14:10Parameters-----------file_name: name of the file.split_duration: duration for each segment. The duration of the last segment may be less than it. Default: 60 s.Examples----------->> audio_split_by_duration(“D:/Desktop/a.mp3”, split_duration=120) # split_duration is 120 s."""audio = AudioFileClip(file_name) # load the audio filename, ext = os.path.splitext(file_name)total_duration = audio.duration # total duration of the audio filesplit_points = list(range(0, int(total_duration), split_duration))split_points.append(int(total_duration))file_list = []for i in range(len(split_points) - 1):start_time = split_points[i]end_time = split_points[i + 1]split_audio = audio.subclip(start_time, end_time) # split the audio filesplit_audio.write_audiofile(f"{name}_{i}"+ext) # write the split segmentsfile_list.append(f"{name}_{i}"+ext)audio.close()return file_listdef audio_split_by_size(file_name, split_size=1024):"""Split the audio file into segments with the given size.The split segments are with the same extension name as the original file.Author: AbaloneVH Version: 2024/03/04 14:10Parameters-----------file_name: name of the file.split_size: maximal size of each segment. Unit: KB. Default: 1024 KB, i.e., 1 MB.Examples----------->> audio_split_by_size(“D:/Desktop/a.mp3”, split_size=1024*2) # split_size = 2MB"""audio = AudioFileClip(file_name) # load the audio filename, ext = os.path.splitext(file_name)file_size = os.path.getsize(file_name)/1024 # unit: KBnum_seg = int(np.ceil(file_size/split_size)) + 1total_duration = audio.durationsplit_duration = int(np.ceil(total_duration/num_seg))split_points = list(range(0, int(total_duration), split_duration))split_points.append(int(total_duration))file_list = []for i in range(len(split_points) - 1):start_time = split_points[i]end_time = split_points[i + 1]split_audio = audio.subclip(start_time, end_time) # split the audio filesplit_audio.write_audiofile(f"{name}_{i}"+ext) # write the split segmentsfile_list.append(f"{name}_{i}"+ext)audio.close()return file_listdef audio_concat(file_list, file_concat_name):"""Concatenate the audio files into oneAuthor: AbaloneVH Version: 2024/03/04 14:10Parameters-----------file_list: name list of the audio files to be concatenatedfile_concat_name: name of the concatenated audio fileExamples----------->> audio_concat([“D:/Desktop/a.mp3”, “D:/Desktop/b.mp3”], file_concat_name=“D:/Desktop/ab.mp3”)"""audio_clips = []for sub_file__name in file_list:audio_clips.append(AudioFileClip(sub_file__name))audio_all = concatenate_audioclips(audio_clips)audio_all.write_audiofile(file_concat_name)return file_concat_name# Example
# 1. Split "P1.mp3" into segments, the size of each segment is less than 2 MB
fileName = "P1.mp3" # name of the audio file to be split
fileList = audio_split_by_size(fileName, split_size=1024*2)# 2. Concatenate the first two segments into one audio file "P_all.mp3"
fileConcatName = "P_all.mp3" # name of the concatenated audio file
print(audio_concat(fileList[:2], fileConcatName))
参考资料：【Python】如何高效把一个mp3切割成多个30秒的片段（附实操）_python mp3切片-CSDN博客
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