7 Aug
2005
7 Aug
'05
9:04 a.m.
Hello,
On Sat, 6 Aug 2005, John Mulholland wrote:
I have a large amount of aiff samples that have a
predecing second or two of
ambient silence. To trim this out of each file is going to take a very long
time. Is there a program that can do this for me?
here's yet another way to this (with ecasound this time). First a script
to trim one file:
ecatrimsilence.sh:
--cut--
#!/bin/sh
#
# description: removes silence from the beginning and the end
# of a file
# version: 20050807-2
# 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 $1 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--
You can apply this to multiple files by doing for example something
like (in the directory where the *.aif files are):
bash> for i in `find . -type f -name \*.aif` ; do ../ecatrimsilence.sh $i ; done
--
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