WinCE Sound Issues

R
rams
Thu, Apr 3, 2008 6:47 AM

Hi

We worked on pjsip for windows mobile 5.0 previously and that time developed an application and we didnot face any sound problems.

Now we want to develop a voip application using pjsip for a custom wince device and i used the pjsip libs which i got by building the pjsip for that wince device platform and used those libs and developed a simple application for this custom wince device.
I am able to register successfully for a server , but i am unable to hear any sound when i made a call to mobile or any application in desktop like xlite.In this Case we are able to get the RTP data and we r using GSM Codec, but i am getting loud static noice in this call and in some other same type of device after initializing pjmedia itself i m getting this loud static noice.

The processor which i m using in this wince device is Intel, ARM920T-PX
do u think is there any probelm with the device ???

Also after initializing pjstack if i try to play a wav file using PlaySound Function, i am unable to hear the sound and only after exiting from the pjstack only i can hear the sound . i am not sure whether its the problem with the sound card/driver of the device
.
please suggest us .

Regards
Rams


Share files, take polls, and discuss your passions - all under one roof.  Click here.

Hi We worked on pjsip for windows mobile 5.0 previously and that time developed an application and we didnot face any sound problems. Now we want to develop a voip application using pjsip for a custom wince device and i used the pjsip libs which i got by building the pjsip for that wince device platform and used those libs and developed a simple application for this custom wince device. I am able to register successfully for a server , but i am unable to hear any sound when i made a call to mobile or any application in desktop like xlite.In this Case we are able to get the RTP data and we r using GSM Codec, but i am getting loud static noice in this call and in some other same type of device after initializing pjmedia itself i m getting this loud static noice. The processor which i m using in this wince device is Intel, ARM920T-PX do u think is there any probelm with the device ??? Also after initializing pjstack if i try to play a wav file using PlaySound Function, i am unable to hear the sound and only after exiting from the pjstack only i can hear the sound . i am not sure whether its the problem with the sound card/driver of the device . please suggest us . Regards Rams --------------------------------- Share files, take polls, and discuss your passions - all under one roof. Click here.
BP
Benny Prijono
Thu, Apr 3, 2008 2:48 PM

On Thu, Apr 3, 2008 at 7:47 AM, rams rammeth@yahoo.co.in wrote:

Hi

We worked on pjsip for windows mobile 5.0 previously and that time developed
an application and we didnot face any sound problems.

Now we want to develop a voip application using pjsip for a custom wince
device and i used the pjsip libs which i got by building the pjsip for that
wince device platform and used those libs and developed a simple application
for this custom wince device.
I am able to register successfully for a server , but i am unable to hear
any sound when i made a call to mobile or any application in desktop like
xlite.In this Case we are able to get the RTP data and we r using GSM Codec,
but i am getting loud static noice in this call and in some other same type
of device after initializing pjmedia itself i m getting this loud static
noice.

We have a wiki about loud static noise here, just in case it helps:
http://trac.pjsip.org/repos/wiki/audio-problem-static-noise

The processor which i m using in this wince device is Intel, ARM920T-PX
do u think is there any probelm with the device ???

Also after initializing pjstack if i try to play a wav file using PlaySound
Function, i am unable to hear the sound and only after exiting from the
pjstack only i can hear the sound . i am not sure whether its the problem
with the sound card/driver of the device

The default behavior of PJSUA-LIB is to acquire sound device during
application life-time, thus probably preventing application from using
the sound device. You can change this, and I think this has been
discussed few times on this list, please search the list archive for
more info.

Cheers
Benny

please suggest us .

Regards
Rams

On Thu, Apr 3, 2008 at 7:47 AM, rams <rammeth@yahoo.co.in> wrote: > Hi > > We worked on pjsip for windows mobile 5.0 previously and that time developed > an application and we didnot face any sound problems. > > Now we want to develop a voip application using pjsip for a custom wince > device and i used the pjsip libs which i got by building the pjsip for that > wince device platform and used those libs and developed a simple application > for this custom wince device. > I am able to register successfully for a server , but i am unable to hear > any sound when i made a call to mobile or any application in desktop like > xlite.In this Case we are able to get the RTP data and we r using GSM Codec, > but i am getting loud static noice in this call and in some other same type > of device after initializing pjmedia itself i m getting this loud static > noice. We have a wiki about loud static noise here, just in case it helps: http://trac.pjsip.org/repos/wiki/audio-problem-static-noise > The processor which i m using in this wince device is Intel, ARM920T-PX > do u think is there any probelm with the device ??? > > Also after initializing pjstack if i try to play a wav file using PlaySound > Function, i am unable to hear the sound and only after exiting from the > pjstack only i can hear the sound . i am not sure whether its the problem > with the sound card/driver of the device The default behavior of PJSUA-LIB is to acquire sound device during application life-time, thus probably preventing application from using the sound device. You can change this, and I think this has been discussed few times on this list, please search the list archive for more info. Cheers Benny > please suggest us . > > > Regards > Rams