[asterisk-users] Voicemail- Recorded Mesage Low Volume

[Daniel Hazelbaker]

On Apr 1, 2008, at 5:22 PM, asterisk-users-request at lists.digium.com  
wrote:

>  Can the volume of the recorded voice mail message be changed?  If
> so, what I am doing wrong?  Any input would be greatly appreciated.
> Thanks.

I had a similar problem in our setup where we e-mail the recorded  
messages to e-mail retrieval.  But this also helps standard phone  
retrieval too.  What I did was edit the /usr/sbin/safe_asterisk script  
and add:

PATH="/usr/local/bin:$PATH"

At the top of the script. This would let me override the default sox  
implementation that Asterisk uses.  Then I loaded in a script (called  
sox) that would compress and normalize the recorded audio (It  
compresses to deal with the spikes of the noise of the handset being  
hung up, etc.). It works pretty well for us and makes the volume  
pretty good so we don't have to crank up the volume on our computers  
or phones to listen to voicemail messages.  And we can't adjust the  
rxgain as it is already a good volume for normal calls.

Daniel

--CUT--
#!/bin/sh
#
# $1 = -v
# $2 = number
# $3 = inFile
# $4 = outFile
#
REALSOX="/usr/bin/sox"

if [ "$1" != "-v" ]; then
   $REALSOX $*
   exit $?
fi

INFILE="$3"
OUTFILE="$4"

#
# Perform the gain adjustment.
#
$REALSOX "$INFILE" "$OUTFILE" compand 0.1,0.3  
-60,-60,-30,-15,-20,-12,-4,-8,-2,-7 0 0 0.2
--CUT--