[pjsip] Poor Voice Quality on Windows Mobile 6 (with Codecsother than G711)

Benny Prijono bennylp at pjsip.org
Fri Apr 25 07:27:06 EDT 2008


On Fri, Apr 25, 2008 at 7:47 AM, girish_kumar <girish_kumar at infosys.com> wrote:
>
>  Thanks Benny, I will try to use latest SVN version which has WSOLA disabled to see if at least GSM works fine.
>
>  As I understand, PJSIP is using Speex 1.2 Beta 1 version. Is there any work going on for incorporating latest version 1.2 Beta 3 of Speex into PJSIP which may give much better performance as the basic Speex Codec library has been separated out of non-codec components and can be built without Floating point support. FPU is missing in Win CE which may have been a significant factor in its poor performance on mobile.
>

Yep we will upgrade to the latest Speex as soon as time permits. But
actually we already use the fixed point version if
PJ_HAS_FLOATING_POINT is disabled (which it is on WinCE config in
config_site_sample.h), so I'm not sure we will gain massive
performance improvements with the upgrade.

Cheers
 Benny


>  ~Girish
>




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