[asterisk-users] GSM cleanup (pops, clicks and static)

[Steve Murphy]

On Fri, 2007-02-23 at 16:48 -0500, David Ruggles wrote:
> I have a bunch of sounds that I've converted into gsm from (Indexed NMS) vox
> files. There's only a single utility that I've found that can read and
> convert vox files. My conversion process is to use this utility to convert
> the index vox file in to a series of wave files and then use sox to convert
> the wave files to gsm files. Over all this works really well, the problem is
> that about 60 to 70 percent of the gsm files have some static or popping and
> clicking, on most of them it is in the silence at the end of the file.
> 
> All that back story to ask this question: Are there any good utilities
> available for cleaning up gsm files?
> 

I've been playing around quite a bit lately! If I were you, I'd take
those wav files, and use audacity to inspect and clean them, then do the
sox thing to get to gsm. If they are clean in wav, they should be clean
in gsm.

murf

-- 
Steve Murphy
Software Developer
Digium
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