[Asterisk-Dev] 16 KHz audio ?

[Dorn Hetzel]

On Fri, Dec 17, 2004 at 05:15:24PM -0500, Andrew Lindh wrote:
> 
> Here are some other G.722 versions:
> 
> Codec	ITU yr	type		delay	rate
> G.722	1988	SB-ADPCM	2ms	48 56 64k
> G.722.1	1999	Transform?	20ms	24 32k
> G.722.2	2002	ACELP		20ms	23.85 down to 6.6k
> 
> G.722.2 is also known as AMR-WB which looks good on paper. But again
> the patent pool has a deep end and it's not cheap...
> 
> While G.722 may be free and easy it is not the advanced codec that
> most people will be looking for. G.722 and it's additions are
> rather different from each other, I don't know what the phones
> support today. They may support only newer versions.
>

I think Grandtream does the old G.722, at least from what
the bit rate seems implied to be...  I don't mind 64K, I
use G.711 now, so it would be no more bits and better sound :)

-Dorn