记录一个脚本，功能使用过sox来批量转换wav为采样率16000的wav，更复杂的转换可以通过ffmpeg来进行转换，当然sox也提供了很多的转换，详细的可以查阅他的document

#/bin/bashexport arrayindexexport arrayfunction  scandir() {	local cur_dir parent_dir workdir	workdir=$1	cd $workdir	if test $workdir = "/" 	then		cur_dir=""	else		cur_dir=$(pwd)	fi	for dirlist in $(ls $cur_dir)	do		if test -d $dirlist;then			cd $dirlist			scandir $cur_dir/$dirlist			cd ..		else			# echo ${cur_dir}/${dirlist}			#shell 数组赋值			array[$arrayindex]=$cur_dir/$dirlist			#注意shell索引的递增方式			((arrayindex++))		fi	done}function GetALLDirInfo()	{		local dir		dir=$1		arrayindex=0		if test -d $dir		then			scandir $dir		elif test -f $dir		then			echo "you input a file not a directory"			exit 1		else			echo "the dir you input $dir is not exit"		fi	}read -p "please input the paths needed transform(file or dir):" LOCATIONecho "path is:$LOCATION"read -p "please input the dir which you need to save the transform file :" SAVE_DIRecho "path is:$SAVE_DIR"if [ ! -d $SAVE_DIR ]then 	mkdir $SAVE_DIRfiif [[ -d $LOCATION ]]then    GetALLDirInfo $LOCATION	for content in ${array[@]}	do		file_name=${content##*/}		echo $file_name		length=${#file_name}		out_name=${file_name:0:length-4}		echo $out_name		echo $SAVE_DIR"/"$out_name"_16000.wav"		sox  $content -r 16000   $SAVE_DIR"/"$out_name"_16000.wav"		doneelse		file_name=${LOCATION##*/}		echo $file_name		length=${#file_name}		out_name=${file_name:0:length-4}		echo $out_name		echo $SAVE_DIR"/"$out_name"_16000.wav"		sox  $LOCATION -r 16000   $SAVE_DIR"/"$out_name"_16000.wav"fiecho "Transformation is completed!"