[asterisk-dev] G.729.1 - any interest?

Kevin P. Fleming kpfleming at digium.com
Thu Jan 15 08:32:34 CST 2009

Dmitry Andrianov wrote:
> Did I miss something? Is Asterisk capable of handling 16KHz audio already? Can it mix 16KHz streams in the meetme rooms? Can it downsample them to 8kHz for Zap channels?

Asterisk 1.6 can handle 16KHz streams and resample between 8KHz and
16KHz. The current conferencing implementation is 8KHz only, but the new
one that Josh Colp has been working on will be able to support 16KHz
(and higher, presumably) conference mixing. It is scheduled to be in
Asterisk 1.6.2, although it will be a parallel implementation, and won't
affect app_meetme.

> Who needs 16khz codec if the rest of the system cannot do anything about it?

Very true :-)

Kevin P. Fleming
Digium, Inc. | Director of Software Technologies
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
skype: kpfleming | jabber: kpfleming at digium.com
Check us out at www.digium.com & www.asterisk.org

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