Using lame to convert a file that already has background noise in it will not magically remove the background noise. In fact, doing any type of conversion on a file that sounds bad will likely make it sound worse.
Instead, edit your voicemail.conf file and change the preferred formats line. I don’t remember it exactly, but it is obvious when you view the file.
; 1st listed format gets emailed
format=wav49|wav
attach=yes
pbxskip=yes ; Don't put [PBX]: in the subject line
serveremail=vm@trixbox ; Who the e-mail notification should appear to come from
fromstring=Voicemail System ; Real name of email sender
maxmessage=180 ; max length of vm message
minmessage=3 ; Minimum length of a voicemail message in seconds
maxsilence=5 ; Wait for 5 silent seconds and end the voicemail
silencethreshold=128 ; What do we consider to be silence
skipms=3000 ; How many miliseconds to skip forward/back when rew/ff in message playback
review=yes ; Allow sender to review/rerecord their message before saving it
operator=yes ; Allow caller to press 0
nextaftercmd=yes ; Automagically play next message when current message is deleted or saved
Should I change the “vm_general.inc” file entry from:
format=wav49|wav
to
format=gsm
Ok. I changed it to format=gsm
But I cannot play the message files any more.
I tried playing these files with mplayer and vlc.
They just exit immediately.
Using lame to convert a file that already has background noise in it will >> not magically remove the background noise
It has worked for me though. So I had suggested to try and see if
that works for him.
Lame has some options (low pass or high pass filter I am not sure).
see the link cites.uiuc.edu/edtech/teachi … index.html
adams,
The voicemail format in your previous settings were alright.
The GSM format gives compact sound files but you will have to compromise on the quality (so in your case more speech degradation).