Re: My VoIP experience in Freerunner
On Tue, 30 Aug 2011 13:03:38 +1000, NeilBrown wrote: On Mon, 29 Aug 2011 14:13:38 -0300 Tiago Bortoletto Vaz ti...@debian.org wrote: Hi all, I've just posted how I managed to get SIP working in Qtmoko - not qtopia default app, unfortunately. Actually it's not only related to Qtmoko once I ended with a regular X application for that. Please share your ideas to improve this setup :) http://tiagovaz.org/posts/VoIP_in_Neo_Freerunner_with_Qtmoko_and_Linphone/ Regards, I cannot see your http://pub.tiagovaz.org/.linphonerc 403 - Forbidden Sorry, I've just added the right permission. anything interesting in it? Not really. Regards, -- Tiago Bortoletto Vaz http://tiagovaz.org ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: My VoIP experience in Freerunner
On Monday 29 August 2011, Paul Fertser wrote: Be warned though, afaict the FR case (especially if you have both screws properly secured, i personally use my device without those for several years without any issues) provokes echo, so you might need to find an acceptable way (yet-to-be-discovered hardware mod or software) to do echo cancellation. linphone has a simpler echo limiter that can be used if there isn't enough cpu for the proper echo canceller, or if the level of distortion is too high for it to work properly. It lowers or mutes the mic when the speaker level is high so you effectively get half-duplex calls. It's not ideal, but probably better than echo! http://www.linphone.org/eng/documentation/dev/tuning-linphone.html ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: My VoIP experience in Freerunner
This is the first I have heard of removing the case screws to reduce echo. Has this worked for anyone else? [/threadjack] On 08/29/2011 03:13 PM, Paul Fertser wrote: Hi, Thanks for sharing the valueable info :) Tiago Bortoletto Vazti...@debian.org writes: • I was not able to have default Freerunner headset working on an acceptable quality. Help will be very welcome. I think the voip-handset state file is supposed to be used with the handset (i.e. builtin mic and speaker) rather than with the headset. You'd need to study the routing diagram[1] to see what changes are needed to get a voip-headset setup. To check if it's working, you can simply load the statefile and then use ``arecord'' to record a sample file, scp it to your PC and check the levels and quality. Then scp some other known to be good file from PC to FR and use ``aplay'' to check the playback quality. Also, make sure you're not CPU-bound. As s3c2442 lacks an FPU, you probably should avoid codecs that require floating point operations, and also probably you might need to disable echo cancellation and/or silence detection. Be warned though, afaict the FR case (especially if you have both screws properly secured, i personally use my device without those for several years without any issues) provokes echo, so you might need to find an acceptable way (yet-to-be-discovered hardware mod or software) to do echo cancellation. [1] http://wiki.openmoko.org/wiki/Neo1973_Audio_Subsystem ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: My VoIP experience in Freerunner
Hi, Thanks for sharing the valueable info :) Tiago Bortoletto Vaz ti...@debian.org writes: • I was not able to have default Freerunner headset working on an acceptable quality. Help will be very welcome. I think the voip-handset state file is supposed to be used with the handset (i.e. builtin mic and speaker) rather than with the headset. You'd need to study the routing diagram[1] to see what changes are needed to get a voip-headset setup. To check if it's working, you can simply load the statefile and then use ``arecord'' to record a sample file, scp it to your PC and check the levels and quality. Then scp some other known to be good file from PC to FR and use ``aplay'' to check the playback quality. Also, make sure you're not CPU-bound. As s3c2442 lacks an FPU, you probably should avoid codecs that require floating point operations, and also probably you might need to disable echo cancellation and/or silence detection. Be warned though, afaict the FR case (especially if you have both screws properly secured, i personally use my device without those for several years without any issues) provokes echo, so you might need to find an acceptable way (yet-to-be-discovered hardware mod or software) to do echo cancellation. [1] http://wiki.openmoko.org/wiki/Neo1973_Audio_Subsystem -- Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software! mailto:fercer...@gmail.com ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: My VoIP experience in Freerunner
On Mon, 29 Aug 2011 14:13:38 -0300 Tiago Bortoletto Vaz ti...@debian.org wrote: Hi all, I've just posted how I managed to get SIP working in Qtmoko - not qtopia default app, unfortunately. Actually it's not only related to Qtmoko once I ended with a regular X application for that. Please share your ideas to improve this setup :) http://tiagovaz.org/posts/VoIP_in_Neo_Freerunner_with_Qtmoko_and_Linphone/ Regards, I cannot see your http://pub.tiagovaz.org/.linphonerc 403 - Forbidden anything interesting in it? Thanks, NeilBrown ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community