Thank you Lee, Dave, Rich, Joel and of course also Kevin. Between your various messages I finally understand what's happening and how it works, and have actually converted everything to alaw, ulaw, slin and gsm and am not actually using the mp3 side of things at all anymore. The difference is very noticeable in terms of MOH quality except when using g729 on the link between Asterisk and the phone - the sound quality seems worse there.

I have two related questions though which I'm hoping someone can help with:

We use alaw, ulaw, gsm and g729 between phones and asterisk. Sox can convert files to ulaw, alaw and gsm (not to mention slin) but what about g729? Is there such a thing as a format that won't need transcoding when using g729 links, or is this not something that is possible?

And what is the signed linear (slin) format used for?

Thanks,

Faris.




Lee Archer wrote:
Check out the musiconhold.conf.sample in the asterisksource/configs
folder.

Lee
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Faris
Raouf
Sent: 23 February 2006 18:36
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [Asterisk-Users] mpg123 alternative?

Ah! Now this is actually something I've not been able to get my head
around:

 > Note: As of Asterisk 1.2.0, Mpg123 is no longer used by Asterisk,
which  > has its own MP3 player.

Can anybody tell me where this built-in MP3 player is in 1.2.x/how do I
use it ?

I still seem to have the usual two mpg123 processes running with 1.2.4,
with whatever music on hold is set in musiconhold.conf

I'm sure it is very obvious, but I can't for the life of me figure out
what I'm supposed to do to use the built-in MP3 player facilities.


I just have the following in my musiconhold.conf:

[default]
mode=mp3
directory=/var/lib/asterisk/mohmp3
random=yes


Faris.




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