如何在 python 中从拆分块中删除静默块

Question

我有一些语音音频文件，我想分成 30 秒的块，这是代码

# Split Audios to 30 sec
from pydub import AudioSegment
from pydub.utils import make_chunks
myaudio = AudioSegment.from_file('wav.audios/file_Name.wav' , "wav")
chunk_length_ms = 30000 # pydub calculates in millisec
chunks = make_chunks(myaudio, chunk_length_ms) #Make chunks of one sec
#Export all of the individual chunks as wav files
for i, chunk in enumerate(chunks):
    chunk_name = 'parts/chunk{0}.wav'.format(i)
    print("exporting", chunk_name)
    chunk.export(chunk_name, format="wav")

音频的一个块始终是无声块(最后一个(，我希望python检测到它并删除它，所以我最终得到不是静音的文件块。我该怎么做？

Answer 1

只需使用 - del chunks[-1]删除最后一个块，如下所示。

from pydub import AudioSegment
from pydub.utils import make_chunks
myaudio = AudioSegment.from_file('wav.audios/file_Name.wav' , "wav")
chunk_length_ms = 30000 # pydub calculates in millisec
chunks = make_chunks(myaudio, chunk_length_ms)
del chunks[-1]
for i, chunk in enumerate(chunks):
    chunk_name = 'parts/chunk{0}.wav'.format(i)
    print("exporting", chunk_name)
    chunk.export(chunk_name, format="wav")