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hudamalmsteen / csipsimple

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choppy sound when using G.729 codec #1309

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
What steps will reproduce the problem?
1. Configure CSipSImple to use G.729 codec.
2. Make a phone call.
3. Make sure that G.729 is actually being used (tap info on the in-call screen).

What is the expected output? What do you see instead?
Sound should be clear with no cuts.

What version of the product are you using? On what operating system?
CSipSimple nightly 0.02-03 r1032 on Samsung Galaxy S2 running Android 2.3.5 
(XXKI3 firmware)

Please provide any additional information below.
There are no issues when using PCMA or PCMU codecs.
I have run the tests through WiFi (results might be far worse on 3G/EDGE/GPRS) 
though G.729 is supposed to provide better quality while using less data.

Original issue reported on code.google.com by estefanooos@gmail.com on 6 Oct 2011 at 2:57

GoogleCodeExporter commented 9 years ago 
does it sound like the computer voices of the 80s? kinda distorted?
if yes, i want to contribute my issue, because of the same effect

Original comment by automate...@gmail.com on 7 Oct 2011 at 4:03

GoogleCodeExporter commented 9 years ago 
[deleted comment]
GoogleCodeExporter commented 9 years ago 
The sound is a little distorted, but not too much. It is rather choppy with 
cuts.

Original comment by estefanooos@gmail.com on 7 Oct 2011 at 4:31

GoogleCodeExporter commented 9 years ago 
ok will open another ticket

Original comment by automate...@gmail.com on 7 Oct 2011 at 5:16

GoogleCodeExporter commented 9 years ago 
I have the same problem on htc wildfire s 2.3.3. G729 outgoing voice choppy 
with cuts. Incoming voice is good. Tried with different settings. Same result.
On 3g the incoming voice is still very good but the quality of outgoing seems 
to vary little more. Could be related to network but 3g/4g coverage is mostly 
very good where I tested.

Original comment by patricle...@gmail.com on 29 Oct 2011 at 4:23

GoogleCodeExporter commented 9 years ago 
I tested my 3g/4g upload and download speeds and latency. 
I tested at different locations and I never got any upload speed lower than 350 
kbps. Download speed was always much higher. Latency varied a lot: from 90 to 
500ms...
What could be causing that choppiness in my outgoing voice? The latency?

Original comment by patricle...@gmail.com on 7 Dec 2011 at 3:44

GoogleCodeExporter commented 9 years ago 
Same problem on Samsung Galaxy S2 firmware XXKI4

Original comment by wilbert....@gmail.com on 20 Feb 2012 at 1:10

GoogleCodeExporter commented 9 years ago 
Forgot to mention Android 2.3.5

Original comment by wilbert....@gmail.com on 20 Feb 2012 at 1:11

GoogleCodeExporter commented 9 years ago 
About g729, if you know can you specify the sip provider or sip server on the 
other side.
It appears that some servers are buggy and does not respect the ptime sent by 
csipsimple for g729. This ptime may allow to have lower latency but not all 
media server respect that, and in this case you get a very very choppy outgoing 
sound -while on the other way, csipsimple is able to decode flawlessly because 
it actually correctly interprets the ptime value-.

Original comment by r3gis...@gmail.com on 20 Feb 2012 at 2:43

GoogleCodeExporter commented 9 years ago 
If  the server use real G729 not cracked one then there is just christal clear 
sounds I m testing with my ZTE BLADE and I feel better sound qualilty then 
mobile phone :)  also important from the termination provider side must to have 
good quality routing codec converting is also important

Original comment by mamali...@gmail.com on 8 Mar 2012 at 2:30

GoogleCodeExporter commented 9 years ago 
I have the same issue on my alcatel 993d. In g729 mode sound is choppy.

Original comment by sammnet...@gmail.com on 7 Jan 2013 at 2:38