音频一批修剪开头和结尾使用红袜

Question

如何合并两个，所以多个文件进行处理，每个文件修剪从开始15秒，15秒底：

@echo off 
cd E:\trim\multiplefiles 
mkdir trimmed 

rem trims 15 seconds from end of each file, and creates a snipped file in 
rem trimmed folder 

FOR %%A IN (*.wav) DO sox "%%A" "trimmed\%%~nxA" reverse trim 15 reverse 

和

@echo off 
cd E:\trim\multiplefiles 
mkdir trimmed 

rem trims 15 seconds from beginning of each file, and creates a snipped file in rem trimmed folder 

FOR %%A IN (*.wav) DO sox "%%A" "trimmed\%%~nxA" trim 15 

Answer 1

红袜修剪效果可以让你同时指定开始和持续时间，以及负的持续时间规定了从底了测量的终点文件。因此sox infile outfile trim 15 -15将从文件中移除前15秒和后15秒。

@echo off 
cd E:\trim\multiplefiles 
mkdir trimmed 

rem trims 15 seconds from beginning and end of each file, putting result in trimmed folder 

FOR %%A IN (*.wav) DO sox "%%A" "trimmed\%%A" trim 15 -15 

注意~nx不需要在输出规范。

Answer 2

我会假设您可以先从文件末尾修剪15秒，然后从结果开始修剪15秒。然后，你可以把一切都放在一个循环，并使用临时文件是这样的：

@echo off 

cd E:\trim\multiplefiles 
mkdir trimmed 

FOR %%A IN (*.wav) DO (
    rem trim 15 seconds from end and put it in temporary file 
    sox "%%A" "trimmed\temp_%%~nxA" reverse trim 15 reverse 
    rem trim 15 seconds from beginning of the temporary file 
    sox "trimmed\temp_%%~nxA" "trimmed\%%~nxA" trim 15 
    rem delete temporary file 
    del "trimmed\temp_%%~nxA" 
)