#458 Audio choppy to receiving end On WIFI and 3G - any codec

[Anonymous]

Originally created by: BrianPYe...@gmail.com
Originally owned by: r3gis...@gmail.com

What steps will reproduce the problem?
1.  Use WIFI (or 3G) and call with GSM/G711u codec to landline
2.  Use continuous tone or some form or test to see if other side breaks up.

What version of the product are you using? On what operating system?
Latest Dev version, DeFrost 6.1 - HTC Desire

Please provide any additional information below.

I'm using voip.ms and I tested at home network with SPA2102, G711u works fine, no choppy or dropped speech, as well as GSM codec. 

Once using csipsimple on wifi (10 feet from router) and using GSM codec, and even G711u, the audio is choppy for the receiver end.  I can hear fine with no audio degredation but other side has issues hearing me.

[Anonymous]

Originally posted by: r3gis...@gmail.com

You are probably affected by the PSP bug of HTC device :

Please read issue 71, issue 233 and issue 447 (last one sum up things if you are lazy and don't want to read others ;) ).

It explain what is the PSP bug, what is the provided workaround available in CSipSimple. If it's not a Desire branded like the one of issue 447 (telstra) could you follow the indication of issue 447 so that I can activate by default the workaround on this branded distribution of HTC devices.

You could also advise guys from DeFrost ROM to change their branded info to something like "htc" it could help a lot application to detect what device it is and so adapt settings and activate workarounds if needed ! (Else it will become a crazy thing for application developer to detect a phone model and adapt settings in consequence).

Mergedinto: 447
Status: Duplicate

[Anonymous]

Originally posted by: r3gis...@gmail.com

Arg sorry my mistake

it's issue 449 not 447 !!

Mergedinto: 449

[Anonymous]

Originally posted by: r3gis...@gmail.com

@Brian : Ok I reopen the issue here as it's not the same issue than 449.

Just quick question to be sure : the workaround was automatically activated on your phone? Or it was necessary to turn it on? If so could you send me logs, cause I'll have to turn it on automatically.

3G should support GSM absolutely well. When I was able to test here before carrier blocks RTP traffic in france, I was able to use G711 (which consume a lot of bandwidth) even on EDGE network !
And if you use GSM codec it even use less bandwidth. So should be extremely good on HDSPA.

So answer is somewhere else. All the more so as in 3G you should not be affected by the PSP bug (which is a wifi bug only).

You should also check that there is no running SIP application else than csipsimple on your phone (it may interfere). Maybe worth to try to reboot too (if another app take a hold on the micro hardware it could affect the way I get back audio frames).

If you can collect logs, I'll maybe find a clue.
Read the wiki page HowToCollectLogs.

Mergedinto: -449
Summary: Audio choppy to receiving end On WIFI and 3G - any codec
Owner: r3gis.3R
Status: Accepted

[Anonymous]

Originally posted by: r3gis...@gmail.com

Also something worth to be tried :

Change frequency from 16kHz to 8kHz.

[Anonymous]

Originally posted by: r3gis...@gmail.com

If you can also test [r422] :

http://nightlies.csipsimple.com/trunk/CSipSimple-r422-trunk.apk

I've re-worked the audio "driver" I'd so really appreciate any feedback on this new version.

[Anonymous]

Originally posted by: BrianPYe...@gmail.com

Thanks, I'll test out 422 and give you results and also log as well.  BTW thanks for G729, it's great!

PS:  I was using clock rate = 44kHz

[Anonymous]

Originally posted by: r3gis...@gmail.com

Sorry 422 was absolutely broken
http://nightlies.csipsimple.com/trunk/CSipSimple-r427-trunk.apk

[r427] should be ok.

[Anonymous]

Originally posted by: r3gis...@gmail.com

And maybe also increasing the thread count settings (in expert setting mode - use menu in settings screen if not already in expert mode, media > thread count).

[Anonymous]

Originally posted by: moallank...@gmail.com

I have this issue with 16r1410 latest market version. I use CDMA 3g and the audio on my end is great. Audio on recipient end is choppy. I'm using Samsung Fascinate.

[Anonymous]

Originally posted by: r3gis...@gmail.com

On Fascinate I think that's the same kind of problem that on galaxy S : the audio driver for the micro is crappy.

However I found on Galaxy S and Galaxy Teos that changing the Frequency may help. Maybe worth to try with 8kHz or 32kHz (I think that 32 will be a little bit better).

In recent versions of the ROM of the galaxy S things are better (I'm currently testing the (XX)JPY and their fixes start to improve things. What ROM version are you using on your Fascinate?

---However I don't think that' the same problem than the initial issue cause on Desire should be really fine (I've a Nexus One which is almost equivalent and audio quality is great).

[Anonymous]

Originally posted by: moallank...@gmail.com

32kHz improved the audio somewhat.  How do I determine the ROM version I'm using? It's non-rooted The firmware is 2.1 update1 & the kernel is 2.6.29

[Anonymous]

Originally posted by: r3gis...@gmail.com

Ok, so I think that it's due to the firmware version. I heard somewhere that Samsung fixed their driver in 2.2.1 updates (reason why I do not observe the issue on my galaxy S which is identical to Fascinate).
Hopefully thanks to the big SMS bug present on android and fixed this week by google, carriers and Samsung will push soon upgrades using Kies, and you'll probably have the fix for their audio driver.

Status: WontFix