[SIP Beyond VoIP] Changing the sampling rate in Blink for Windows

ag at ag-projects.com ag at ag-projects.com
Fri Jul 11 10:06:19 CEST 2014


First of all G.722 covers only 7 KHz of the audio spectrum. So a 16 KHz sampling rate covers entirely the capabilities of this codec. If you increase the sampling rate you will not notice any quality improvement using G.722 .If you want better quality you need to use Opus codec which covers all audio spectrum. 

Why the setting does not hold for you between restarts is not clear as as far as I know it can be changed. We will check this.


On 11 Jul 2014, at 10:03, Michael W. Dean <rightarmofwyoming at gmail.com> wrote:

> Hello! 
> I've run into an issue that I can't find an answer for in the tutorials or help section on the website. And can't seem to search the mailing list archives. 
> I'm using Blink for Windows on Windows 7. Using codec G.722. 
> When I change the sampling rate from 16k to 32k, it doesn't seem to save it. Even after a reboot, with both myself and the person on the other end changing it, even though it says it's saved, it still always reverts to showing 16k on both ends of a call. And the audio quality does not sound improved. 
> We've tried enabling, and disabling, Acoustic Echo Cancellation, but it doesn't make any difference. 
> Is there any way to change the sampling rate on the free Windows version of blink when running G.722? 
> Respectfully, 
> MWD 
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