如何在Mac终端中使用SoX从文本文件中修剪特定时间的音频文件? [英] how to trim audio file with specific time from text file by using SoX in Mac terminal?

问题描述

我有一个文本文件，看起来像这样 文本文件 ，并且我想使用sox根据文本文件中的时间来修剪音频文件，因此我可以使用从0.0到6.16、6.16到13.44、13.44到17.54等不同的音频剪辑.

I have a text file looks like this text file ,and I want to use sox to trim the audio file based on the time in the text file, so I can have different audio clips from 0.0 to 6.16, 6.16 to 13.44, 13.44 to 17.54 etc..

我知道修整袜子的基本脚本是*$ sox audio.wav newaudio.wav trim starttime duration*
但是如何从文本文件中获取持续时间并使用sox修整音频呢?

I understand the basic script for sox trim is *$ sox audio.wav newaudio.wav trim starttime duration*
But how can I get the duration from the text file and use sox to trim the audio?

推荐答案

更新后的答案

我认为以下代码可能更接近

I think the following code may be closer:

#!/bin/bash
index=0
while read this; do
   if [ $index -gt 0 ]; then
      d=$(bc <<< "$this - $start")
      echo sox audio.wav new-$index.wav trim \"$start\" \"$d\"
   fi
   ((index+=1))
   start=$this
done < times.txt

我不使用 sox ，但这是方法的要点-它假定您的时间在名为times.txt的文件中:

I don't use sox, but this is the gist of the approach - it assumes your times are in a file called times.txt:

#!/bin/bash
index=0
while read this; do
   if [ $index -gt 0 ]; then
      echo sox audio.wav new-$index.wav trim $start $this
   fi
   ((index+=1))
   start=$this
done < times.txt

示例输出

sox audio.wav new-1.wav trim 0.0 6.16
sox audio.wav new-2.wav trim 6.16 13.44
sox audio.wav new-3.wav trim 13.44 17.54
sox audio.wav new-4.wav trim 17.54 23.3
sox audio.wav new-5.wav trim 23.3 26.5

因此，您将所有代码保存在名为$HOME/trimmer的文件中，然后启动 Terminal 并运行以下命令以使脚本可执行-只需一次即可:

So you would save all that code in file called $HOME/trimmer then start Terminal and run the following to make the script executable - just once is sufficient:

chmod +x $HOME/trimmer

然后将目录更改为音频文件所在的目录，例如:

Then change directory to where your audio files are, e.g.:

cd path/to/audio/files

然后使用以下命令运行脚本:

then run the script with:

$HOME/trimmer

如果您喜欢它的外观，请从脚本中删除单词echo，然后再次运行它.如果您不熟悉脚本，请先进行备份.

If you like how it looks, remove the word echo from the script and run it again. Please make a backup first if you are unfamiliar with scripting.

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