SOX 的采样率误差

Question

我正在使用以下转换代码，使用 SOX 将所有原始文件转换为 16 KHZ、16 位、单声道格式的 wav 文件。我使用了以下代码

我使用了下面的代码

#!/bin/bash
OutDir=converted 
for input in "$@"   
   do sox -S $input -r 16000 -c 1 -b 16 -w -s -t raw "$OutDir/$(basename $input)" 
done

尽管我提到了采样率 -r 16000

，但仍观察到以下错误

bsnayak@ubuntu:~/MLLR/input$ ls
an251-fash-b.raw  an254-fash-b.raw  cen1-fash-b.raw  cen4-fash-b.raw  cen7-fash-b.raw  convert.sh
an253-fash-b.raw  an255-fash-b.raw  cen2-fash-b.raw  cen5-fash-b.raw  converted
bsnayak@ubuntu:~/MLLR/input$ ./convert.sh /home/bsnayak/MLLR/input/*.raw 
sox FAIL formats: bad input format for file `/home/bsnayak/MLLR/input/an251-fash-b.raw': sampling rate was not specified
sox FAIL formats: bad input format for file `/home/bsnayak/MLLR/input/an253-fash-b.raw': sampling rate was not specified
sox FAIL formats: bad input format for file `/home/bsnayak/MLLR/input/an254-fash-b.raw': sampling rate was not specified
sox FAIL formats: bad input format for file `/home/bsnayak/MLLR/input/an255-fash-b.raw': sampling rate was not specified
sox FAIL formats: bad input format for file `/home/bsnayak/MLLR/input/cen1-fash-b.raw': sampling rate was not specified
sox FAIL formats: bad input format for file `/home/bsnayak/MLLR/input/cen2-fash-b.raw': sampling rate was not specified
sox FAIL formats: bad input format for file `/home/bsnayak/MLLR/input/cen4-fash-b.raw': sampling rate was not specified
sox FAIL formats: bad input format for file `/home/bsnayak/MLLR/input/cen5-fash-b.raw': sampling rate was not specified
sox FAIL formats: bad input format for file `/home/bsnayak/MLLR/input/cen7-fash-b.raw': sampling rate was not specified

欢迎提出建议。

使用followinf命令解决：

#!/bin/bash

SAVEIF=$IFS
IFS=$(echo -en "\n\b")

for file in $(ls *raw)
do
  name=${file%%.raw}

  sox -S -V -r 16k -e signed -c 1 -b 16  $name.raw $name.wav
done
IFS=$SAVEIFS

Answer 1

sox 命令行要求文件选项位于它们所应用的文件名之前。您没有在 $input 之前放置任何参数，所以 sox 不知道输入文件的格式是什么。

假设输入文件是 16k、16 位符号和 1 个通道，那么将文件参数重新排列到输入文件之前将使您避免错误。您还需要通过附加 .wav 扩展名来指示输出格式为 wav：

sox -S  -r 16000 -c 1 -b 16 -w -s -t raw $input "$OutDir/$(basename $input).wav"

默认情况下，输入格式将以输出格式复制，除非您通过在输出文件名前添加参数来明确覆盖它。

SOX 的采样率误差

sampling rate error with SOX

linux

audio

sh

audio-recording

sox