I would recommend vorbis speex for this. 
You can get windows drivers to read speex files directly.

Vorbis are the same bunch that develops ogg.

Ogg and mp3 are more suited to music rather than speech.
Speex is a much better fit for speech archiving.

Mark


-----Original Message-----
From: BJ Weschke [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, 8 November 2005 5:52 AM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] MP3 or OGG

 You're probably not going to be violating any patent protections by
using OGG instead of MP3. As far as compression goes, I've found the
difference between the two of them to be negligible. I've always used
OGG when possible to stay "IP safe".

On 11/7/05, Waldo Rubinstein <[EMAIL PROTECTED]> wrote:
> I'm trying to archive out call recordings and would appreciate some
> feedback as to which audio compression is more recommended MP3 or
> OGG. In the past, I've use lame to convert to MP3, but I noticed the
> audio volume drops significantly. Is it just a setting on the command
> line of lame or is OGG better? Which achieves higher compression
> rates while maintaining call quality?
>
> Thanks,
> Waldo
>
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