PJSIP 1.7 iphone port - remote echo issue with speaker phone

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Hi Sauw, just to confirm - this issue is happening when I switch to
speakerphone. There is no  remote echo when in normal mode.
Hmmmmm - let me install this software on a 3G and test. I am testing on an
iphone 4 running ios 4.0.2. Can you confirm you are talking about speaker
phone mode?

On Mon, Aug 23, 2010 at 11:48 AM, Sauw Ming <ming at teluu.com> wrote:

> Hi Rob,
>
> Yes, it is. I tried using SDK 3.2 on an iPhone 2G running iOS 3.1.2
> and SDK 4 on an iPhone 3GS running iOS 4.0.2 and the echo suppressor
> seemed to work fine. So honestly, I don't know what may have caused
> the echo suppressor not working on your side, but my guess is it may
> be due to the SDK and iOS compatibility issue (there was a report that
> echo cancellation doesn't work using SDK 4 on an iPad running iOS 3.x
> but works fine using SDK 3.x).
>
> Regards,
> Ming
>
> On Mon, Aug 23, 2010 at 7:06 PM, Rob Wilkes <wilkrob at gmail.com> wrote:
> > Hi Ming,
> > here is what my debugger says
> > 2010-08-23 07:04:22.138 Sample[5220:307] VALUE OF PJMEDIA_AUD_DEV_CAP_EC
> 512
> > I assume that means coreaudio vp IO unit is being used?
> >
> > On Sun, Aug 22, 2010 at 11:11 PM, Sauw Ming <ming at teluu.com> wrote:
> >>
> >> Hi Rob,
> >>
> >> Yes, on iOS, coreaudio is enabled by default. And we use the Voice
> >> Processing I/O unit, doc:
> >>
> >>
> http://developer.apple.com/iphone/library/documentation/Audio/Conceptual/AudioUnitLoadingGuide_iPhoneOS/System-SuppliedAudioUnitsiniPhoneOS/System-SuppliedAudioUnitsiniPhoneOS.html
> ),
> >> which has built-in echo suppressor. You can try reading the setting
> >> PJMEDIA_AUD_DEV_CAP_EC to confirm whether the coreaudio is indeed
> >> using Voice Processing IO unit.
> >>
> >> Best regards,
> >> Ming
> >>
> >> On Mon, Aug 23, 2010 at 1:50 AM, Rob Wilkes <wilkrob at gmail.com> wrote:
> >> > Hi Ming, does coreaudio get enabled by default in 1.7? I am using 1.7
> >> >
> >> > On Sun, Aug 22, 2010 at 8:29 AM, Sauw Ming <ming at teluu.com> wrote:
> >> >>
> >> >> Hi Alejandro,
> >> >>
> >> >> You can use pjsip 1.7 and use the coreaudio backend.
> >> >>
> >> >> Regards,
> >> >> Ming
> >> >>
> >> >> On Fri, Aug 20, 2010 at 8:08 PM, Alejandro Orellana
> >> >> <alejandro.orellana at savantav.com> wrote:
> >> >> > All
> >> >> > Actually i am observing the same  using pjsip 1.6.
> >> >> > in looking the logs don't see anything related to  echo canceling.
> >> >> > how can i enable the speex echo cancellation or the echo suppressor
> >> >> > for
> >> >> > the
> >> >> > iOS ?
> >> >> > is it recommended to use  either of the above approaches? or the
> core
> >> >> > audio
> >> >> > backend is the recommended one?
> >> >> > Thanks in advance
> >> >> > On Aug 20, 2010, at 1:03 AM, Sauw Ming wrote:
> >> >> >
> >> >> > Hi Rob,
> >> >> >
> >> >> > Which version of iOS SDK and which version of iOS that you are
> using?
> >> >> > If you're using iOS SDK 4, did the same problem also happen when
> >> >> > you're using the SDK 3.x?
> >> >> >
> >> >> > Regards,
> >> >> > Ming
> >> >> >
> >> >> > On Thu, Aug 19, 2010 at 3:56 AM, Rob Wilkes <wilkrob at gmail.com>
> >> >> > wrote:
> >> >> >
> >> >> > Hi, here is the code I am using to switch to loudspeaker on the
> >> >> > iphone
> >> >> >
> >> >> > pjmedia_aud_dev_route route =  PJMEDIA_AUD_DEV_ROUTE_LOUDSPEAKER;
> >> >> >
> >> >> > pj_status_t status;
> >> >> >
> >> >> > pjsua_set_ec (PJSUA_DEFAULT_EC_TAIL_LEN,0);
> >> >> >
> >> >> > status = pjsua_snd_set_setting(PJMEDIA_AUD_DEV_CAP_OUTPUT_ROUTE,
> >> >> >
> >> >> >   &route, PJ_TRUE);
> >> >> >
> >> >> > pjsua_set_ec (PJSUA_DEFAULT_EC_TAIL_LEN,0);
> >> >> >
> >> >> > I just added the pjsua_set_ec both before and after to see if it
> >> >> > makes a
> >> >> >
> >> >> > difference. The remote party is still hearing his own voice back
> loud
> >> >> > and
> >> >> >
> >> >> > clear.
> >> >> >
> >> >> > Can anyone suggest what I may be doing wrong?
> >> >> >
> >> >> > On Wed, Aug 18, 2010 at 11:46 AM, Rob Wilkes <wilkrob at gmail.com>
> >> >> > wrote:
> >> >> >
> >> >> > Hi, I am running PJSIP 1.7 on an iphone (3GS as well as 4). I
> checked
> >> >> > out
> >> >> >
> >> >> > the trunk today and built it exactly as per specs. When I make a
> call
> >> >> > and
> >> >> >
> >> >> > switch the iphone to speaker mode, the remote party hears his/her
> own
> >> >> > voice
> >> >> >
> >> >> > back very prominently. According to the release notes of 1.7, it
> >> >> > should
> >> >> > be
> >> >> >
> >> >> > using the iphone's native echo canceller and this should not be
> >> >> > happening
> >> >> >
> >> >> > (or, atleast, the remote echo should not be so prominent). Is there
> >> >> > any
> >> >> >
> >> >> > additional setting I need to do?
> >> >> >
> >> >> > I assume 1.7's audio driver should already be doing what the
> >> >> >
> >> >> > old http://code.google.com/p/pjsip-iphone-audio-driver/ effort
> did.
> >> >> > Is
> >> >> > that
> >> >> >
> >> >> > correct? (since this was created for older versions of JPJSIP and
> >> >> > PJSIP
> >> >> > has
> >> >> >
> >> >> > evolved since)
> >> >> >
> >> >> > thx
> >> >> >
> >> >> >
> >> >> >
> >> >> > _______________________________________________
> >> >> >
> >> >> > 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
> >> >> >
> >> >> > ------
> >> >> > Alejandro Orellana
> >> >> > Savant Systems, LLC
> >> >> > 770 Main Street
> >> >> > Osterville, Ma. 02655
> >> >> > (508) 683-2547 (W)
> >> >> > (508) 683-2647 (F)
> >> >> > Alejandro.Orellana at savantav.com
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> >> >> >
> >> >> >
> >> >> > _______________________________________________
> >> >> > 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
> >> >
> >> >
> >> > _______________________________________________
> >> > 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
> >
> >
> > _______________________________________________
> > 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
>
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