[Asterisk-Dev] 16 KHz audio ?

Steve Underwood steveu at coppice.org
Fri Dec 17 07:28:46 MST 2004


Andrew Kohlsmith wrote:

>On December 17, 2004 05:49 am, Eric Bart wrote:
>  
>
>>I've seen nowhere a plan to improve audio quality.
>>    
>>
>
>Possibly because there's no real need to?
>
>  
>
>>It seems that the Skype success is partly due to its
>>16 KHz audio bandwidth. It gives users the feeling that
>>the far party is in the same room.
>>    
>>
>
>I've never heard any complaints about regular telephone quality, and that's 
>8-bit 8kHz (64kbps).  Are you sure that this is something that really needs 
>consideration over perhaps working out a way to get packet loss concealment 
>into *?
>  
>
There certainly are real benefits. With 16kHz sampling you can tell "s" 
from "f". That is almost impossible with 8kHz sampling.

One of the goals of ISDN was to move to 7.1kHz bandwidth audio, but it 
never worked out.

Regards,
Steve




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