[pjsip] bad quality on iphone 2G with os 3.0

Mukesh Sharma mukesh.s at geodesic.com
Mon Jan 25 03:59:35 CST 2010


Hi Remo,
If you are using PJSIP 1.5, you need to change  
PJMEDIA_SOUND_BUFFER_COUNT, which is defined in pjmedia/include/ 
pjmedia/config.h
Modified definition should look like:
define PJMEDIA_SOUND_BUFFER_COUNT       
((PJMEDIA_SND_DEFAULT_PLAY_LATENCY+20)/20).

This depends on PJMEDIA_SND_DEFAULT_PLAY_LATENCY. By default this is  
160.
You need to change this to 580, or directly define  
PJMEDIA_SOUND_BUFFER_COUNT to 30.


If you are using PJSIP 1.3 then you need to use delay buffer by  
defining PJMEDIA_SOUND_USE_DELAYBUF to 1 and  
PJMEDIA_SOUND_BUFFER_COUNT to 30 (by default it is 6) in the pjmedia/ 
include/pjmedia/config.h file.


Regards
Mukesh

On 25-Jan-10, at 2:31 PM, Re Mo wrote:

> Dear Mukesh
>
> I am encountering the same problem you described.
> Did you get a resolution for it? Can you share any insight?
> Which version of PJSIP are you using?
>
> I would be happy to collaborate with you on resolving this.
>
>
> Regards,
> remo9071 at gmail.com
>
> On Sun, Jan 10, 2010 at 7:27 PM, Mukesh Sharma  
> <mukesh.s at geodesic.com> wrote:
> Hi All,
> I have manage to run pjsip on iphone 3g with good audio quality .
> But when I run pjsip on 2g ,receiving quality is good but sending  
> quality is bad.
> Also if I use headset both side quality is good.
> To figure out where is problem I have putted some debug statement in  
> input sound thread by doing this i have found that frequency of  
> calling callback increase  if I insert headset.
> I have tested this with recorded message also.
> if any one had faced this problem please help.
>
> Note
> siphon 2.0 downloaded from Cydia working fine on 2g.
>
> Thanks in advance.
> Regards
> Mukesh
>
>
>
> _______________________________________________
> Visit our blog: http://blog.pjsip.org
>
> pjsip mailing list
> pjsip at lists.pjsip.org
> http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org
>
> _______________________________________________
> Visit our blog: http://blog.pjsip.org
>
> pjsip mailing list
> pjsip at lists.pjsip.org
> http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20100125/79164ffb/attachment.html>


More information about the pjsip mailing list