On יום חמישי 24 פברואר 2011 11:48:17 Tzafrir Cohen wrote:
> On Thu, Feb 24, 2011 at 08:39:10AM +0200, Diego Iastrubni wrote:
> > This might be related to the low quality of the call. The cellular
> > networks use these days a heavly compressed GSM codec to save bandwith.
> > If you are on an area that has low cellular coverage the codec gets more
> > aggressive.
> 
> Nowadays it's mostly AMR, IIRC. Still compressed.
> 
> OTOH, is there any usage of a higher sample rate than
> telephony-standard?

Don't konw. I still hear cat vomit each time I speak on the phone. I assume 
the sample rate is still 8khz 16bit - for compatibility issues with older 
networks.

Compressing voice data at those rates will explain why most of our heads hurt 
when we speak on those devices.

_______________________________________________
Linux-il mailing list
Linux-il@cs.huji.ac.il
http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il

Reply via email to