Re: [ecasound] triming silence in sound files

Hi again,

On Sun, 7 Aug 2005, Kai Vehmanen wrote:
> # remove silence at start
> sh> ecasound -i foo.wav -o tmp.wav -ge:1,0,0
> # reverse, remove silence at start sh> ecasound -i reverse,tmp.wav -o
> tmp2.wav -ge:1,0,0
> # reverse to get the original direction
> sh> ecasound -i reverse,tmp2.wav -o foo-cropped.wav

doh, stupid me, the 3rd step is of course unnecessary, two runs
will do. Here's a complete script:

ecatrimsilence.sh
--cut--
#!/bin/sh
#
# description: removes silence from the beginning and the end
# of a file
# version: 20050807-1
# usage: ecatrimsilence.sh <inputfile>

tmp=ecatrimsilence-tmp.wav

if test -e $tmp ; then
   echo "error: temp file $tmp exists, unable to continue..."
   exit 1
fi

if test ! -e $1 ; then
   echo "error: input file $tmp does not exist, unable to continue..."
   exit 2
fi

format=`ecalength -sf $1`

echo "Trimming file ${1}."
echo "Removing silence at the end..."
ecasound -q -f:${format} -i reverse,${1} -o ${tmp} -ge:1,0,0 -b:256
rm -f ${1}
echo "Removing silence at the beginning..."
ecasound -q -f:${format} -i reverse,${tmp} -o ${1} -ge:1,0,0 -b:256
rm -f ${tmp}
echo "Done."
--cut--

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