[Asterisk-Users] Best VM codec for Linux/OS X/Windows environment

[Steve Kann]

Jason Becker wrote:

> Chris TenHarmsel wrote:
>
>> Hi all,
>> I've done some minimal searching on this topic, but haven't come up
>> with anything conclusive.  Right now we're using WAV to store
>> voicemail messages, that then (for the most part) get sent to users in
>> email when they have new voicemail.  The reason for this is that we
>> have a very mixed environment, with most people in linux, some in OS X
>> and a couple in Windows, and I haven't been able to get wav49 or GSM
>> working on all three platforms.   Is anyone in a similar situation and
>> have gotten either of those two compressed codecs to work?  Is there
>> something I have to install in linux to get either working (some sound
>> library or something)?
>
>
> My experience has been that mplayer can handle the wav49 (GSM-encoded 
> wave file) but that snackAmp can't. I (obliquely) suggested that 
> Digium consider FLAC in another thread, I know OS X has an MacFLAC... 
> To be honest, I'm not sure of the state/availability of a FLAC plugin 
> for WMP.
>
All Macs can handle GSM files, but not necessarily WAV49 -- QuickTime 
includes a GSM decoder, and can certainly decode .MOV format files with 
GSM payload.  I dunno if it handles a raw GSM-encoded file with a .gsm 
extension, though.

(QT does not include a GSM encoder, though).

-SteveK