Ubuntu 基于sox音频处理工具shell脚本批量处理音频文件

安装SOX

sudo apt-get install sox

:~$ sox --version
sox: SoX v14.4.1

音频声道采样率转换

audio_convert.sh

#! /bin/sh

old=$1
new=$2
channels=$3
samplerate=$4

function suage_help()
{
	echo "./audio_convert.sh ./old_dir ./new_dir channels samplerate"
	echo "./audio_convert.sh ./old_dir ./new_dir 1 16000"
	exit 0
}

echo "${old}"
echo "${new}"

if [ $# -lt 4 ];then
	suage_help
fi

for file in $old/*;
do
	#echo $file
	echo ${file##*/}
	#sox $file -c 1 -r 16000  "$new/${file##*/}"
        echo ${file}	
	sox "${file}" -c ${channels} -r ${samplerate}  "$new/${file##*/}"
done

音频文件信息

audio_info.sh

#! /bin/sh

#old=$(pwd)/sysaudios
#new=$(pwd)/new

dir=$1
out=$2
function suage_help()
{
	echo "./audio_info.sh ./dir"
	exit 0
}

echo "${dir}"

if [ $# -lt 1 ];then
	suage_help
fi

for file in $dir/*;
do
	echo $file
	soxi "${file}"
	soxi "${file}" >> "${out}"
done

音频播放速度处理

audio_speed.sh

#! /bin/sh

old_dir=$1
new_dir=$2


function suage_help()
{
	echo "./audio_speed.sh old_dir new_dir temo speed"
	echo "./audio_speed.sh ./old_dir ./new_dir 1.33 1"
	exit 0
}

if [ $# -lt 4 ];then
	suage_help
fi

echo "${old_dir}"
echo "${new_dir}"

for file in $old_dir/*;
do
	#echo $file
	echo ${file##*/}
	
	sox $file  "$new_dir/${file##*/}" tempo $3 speed $4
done

音频音量调节

audio_volume.sh

#! /bin/sh

volume=$1
old=$2
new=$3


function suage_help()
{
	echo "./audio_volume.sh volume ./old_dir ./new_dir"
	echo "./audio_volume.sh 0.85 ./old_dir ./new_dir"
	exit 0
}

echo "${old}"
echo "${new}"

if [ $# -lt 3 ];then
	suage_help
fi

for file in $old/*;
do
	#echo $file
	echo ${file##*/}
	#sox -v 0.8 $file "$new/${file##*/}"
        echo ${file}	
	sox  -v ${volume} "${file}" "$new/${file##*/}"
done

M4A转MP3

m4a2mp3.sh

#! /bin/sh

#old=$(pwd)/sysaudios
#new=$(pwd)/new

m4a=$1
mp3=$2


function suage_help()
{
	echo "./m4a2mp3.sh ./m4a_dir ./mp3_dir"
	echo "./m4a2mp3.sh ./m4a_dir ./mp3_dir"
	exit 0
}

echo "${m4a}"
echo "${mp3}"

if [ $# -lt 2 ];then
	suage_help
fi

for file in $m4a/*;
do
	#echo $file
	echo ${file}			# 目录/文件名.后缀
	echo ${file%.*}			# 目录/文件名
	echo ${file##*/}		# 文件名.后缀
	files=${file##*/}		# 文件名.后缀
	filename=${files%.*} 	# 文件名	
	echo ${filename}
	echo ${file##*.}		# 后缀
	
	#newfile=`echo $file | sed -e 's/ /_/g'`
	#echo ${newfile}

	ffmpeg -i "${file}" "$mp3/${filename}.mp3"		

done

MP4转MP3

mp42mp3.sh

#! /bin/sh

#old=$(pwd)/sysaudios
#new=$(pwd)/new

mp4=$1
mp3=$2


function suage_help()
{
	echo "./mp42mp3.sh ./mp4_dir ./mp3_dir"
	echo "./mp42mp3.sh ./mp4_dir ./mp3_dir"
	exit 0
}

echo "${mp4}"
echo "${mp3}"

if [ $# -lt 2 ];then
	suage_help
fi

for file in $mp4/*;
do
	#echo $file
	echo ${file}			# 目录/文件名.后缀
	echo ${file%.*}			# 目录/文件名
	echo ${file##*/}		# 文件名.后缀
	files=${file##*/}		# 文件名.后缀
	filename=${files%.*} 	# 文件名	
	echo ${filename}
	echo ${file##*.}		# 后缀
	
	#newfile=`echo $file | sed -e 's/ /_/g'`
	#echo ${newfile}

	ffmpeg -i "${file}" "$mp3/${filename}.mp3"		

done

PCM转WAV

pcm2wav.sh

#! /bin/sh

pcm_dir=$1
wav_dir=$2
channels=$3
bits=$4
samplerate=$5

function usage_help()
{
	echo "pcm file to wav file:"
	echo "./pcm2wav.sh pcm_dir wav_dir channels bits samplerate" 
	echo "./pcm2wav.sh ./pcm_dir ./wav_dir 1 16 16000"
	exit 0
}

if [ $# -lt 5 ];then
	usage_help
fi

pcm_dir=${pcm_dir}/
wav_dir=${wav_dir}/

echo "pcm_dir:${pcm_dir}"
echo "wav_dir:${wav_dir}"
echo "channels:${channels} bits:${bits} samplerate:${samplerate}"

for pcm_file in $pcm_dir*;
do
	#echo ${pcm_file%%.*} #pcm.tar.gz
	pcm=${pcm_file%.*}  #pcm001.pcm
	#echo ${pcm_file}   ${pcm_file##*.}
	wav=$wav_dir${pcm##*/}.wav
	#echo ${pcm}
	#echo ${wav}
	echo ${pcm_file}
	#sox -t raw -c 1 -e signed-integer -b 16 -r 16000  ${pcm_file}  ${wav}
	sox -t raw -c ${channels} -e signed-integer -b ${bits} -r ${samplerate}  ${pcm_file}  ${wav}
done

WAV转MP3

wav2mp3.sh

#! /bin/sh

wav_dir=$1
mp3_dir=$2

function usage_help()
{
	echo "wav file to mp3 file:"
	echo "./wav2mp3.sh wav_dir mp3_dir"
	echo "./wav2mp3.sh ./wav_dir/ ./mp3_dir/"
	exit 0
}

if [ $# -lt 2 ];then
	usage_help
fi

for file in ${wav_dir}/*.wav;
do
	echo ${file}
	wavfile=${file%.*}
	mp3file=$mp3_dir/${wavfile##*/}.mp3
	
	#echo $wavfile  $mp3file
	sox $file $mp3file
done

文件名空格转下划线

filename_space2underline.sh

#! /bin/sh

dir1=$1
dir2=$2
channels=$3
samplerate=$4

echo "${dir1}"
echo "${dir2}"


for file in $dir1/*.mp3;


do
   #echo ${file##*/}
   #echo ${file}
   echo $file
   newfile=`echo $file | sed -e 's/ /_/g'`
   echo $newfile

   #mv "$file" $newfile
   sox "${file}" -c ${channels} -r ${samplerate} "$dir2/${file##*/}"
done