[pjsip] a question about voice delay

Yuuki Oota yuuki_oota at in4s.co.jp
Wed Nov 7 20:02:26 EST 2007


Hi, Bunny

I'm sorry for making a mistake in the name.
I have changed procedures so this should not happen again.

Thanks for your reply.
I try on pjsip of the latest version.

Regards,

Benny Prijono wrote:
> Hi,
>
> voice delay has been known as a problem in 0.7.0 (btw 0.7.0 is not
> really the latest pjsip, as the latest is always the SVN version),
> but this should have been improved in the SVN version.
>
> Can you probably upgrade your source to the SVN version, and see if
> it goes better?
>
> cheers,
>  -benny
>
> 太田勇樹 wrote:
>   
>> Hi, list
>>
>> I am using the latest PJSIP(pjproject 0.7.0) on Windows Mobile 6 platform.
>> It seems that there is a big delay (300ms-1sec) when talking from a
>> softphone to another one.
>>
>> Although I tried these three points according to
>> http://www.pjsip.org/trac/ticket/323, it has not improved.
>>
>> 1.change conference.c
>>
>> 2.disable ACE
>> #define PJMEDIA_HAS_SPEEX_AEC 0
>> #define PJMEDIA_ECHO_SUPPRESS_FACTOR 1
>>
>> 3.change jitter buffer's parameters
>> app_config.media_cfg.jb_max = 80;
>> app_config.media_cfg.jb_init = 40;
>> app_config.media_cfg.jb_min_pre = 20;
>> app_config.media_cfg.jb_max_pre = 80;
>>
>> Test Environment:
>> PDA1(PJSUA)--WLAN(11g)--WLANAP--openser
>>                |
>> PDA2(PJSUA)----|
>>
>> PDA spec:
>> CPU PXA270 416MHz
>> Memory 64MB
>>
>> Do you have any idea about the problem?
>>
>> Regards,
>>     
>
>
>
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