[Freeswitch-users] G722 16k or 8k?

[Steve Underwood]

On 02/23/2012 11:35 PM, Stephen Dame wrote:
>
> Question on G722, trying to see if the quality of basic g.722 is much 
> better than the standard g729 or g711.
>
The quality of G.711 is considerably better than G.729.

The quality of G.722 is *massively* better than G.711. Why you can even 
spell things out, and be understood, without going "no F for Freddy, not 
S for stuff" all the time. :-)

> Looking at wiki docs. “G722 - G722 16kHz using default 20ms ptime. 
> (multiples of 10)”
>
> However, when I connect to freeswitch using blink client I see 
> G722/8000? I thought this would be 16000. I know when I connect using 
> speex wb, it shows 16000.
>
> 2012-02-23 10:20:07.116606 [DEBUG] mod_sofia.c:750 Local SDP 
> sofia/internal/1004 at 107.XX.XX.XX:
>
> v=0
>
> o=FreeSWITCH 1329993171 1329993172 IN IP4 107.XX.XXX.XXX
>
> s=FreeSWITCH
>
> c=IN IP4 107.XX.XXX.XXX
>
> t=0 0
>
> m=audio 17236 RTP/AVP 9 101
>
> *a=rtpmap:9 G722/8000*
>
> a=rtpmap:101 telephone-event/8000
>
> a=fmtp:101 0-16
>
> a=silenceSupp:off - - - -
>
> a=ptime:20
>
> a=sendrecv
>
> Shouldn’t this be 16000?
>
> Thanks
>
> Stephen
>
>
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