#2837 Echo cancellation cuts off mic input unless you talk real loud.

[Anonymous]

Originally created by: har...@thepetersclan.com

What steps will reproduce the problem?
1.Turn on echo cancellation.
2.Make call.
3.Talk.

What is the expected output? What do you see instead?

I would expect it to pick up my entire conversation without having to talk real loud.
Instead it cuts off your voice (mic) when you speak a little soft.

What version of the product are you using? On what device / operating
system?

I'm currently running the latest nightly build but also have tried the current stable version.
I'm running it on a samsung skyrocket s2 with custom rom ( beanstalk ).

Please provide any additional information below.

If I turn off echo cancellation it works as expected but of course I then have an echo.
I'm currently using the Zoiper sip client which seems to work with no problem but would prefer to use Csipsimple.

It doesn't matter what echo method I use simple, webrtc etc.
One other thing I have noticed is if I set the echo cancellation to auto Csipsimple stops responding and I have to reboot the phone to get it to work again.
I have tried every combination of echo cancellation and mic source etc nothing makes a difference.

[Anonymous]

Originally posted by: har...@thepetersclan.com

Exact Phone model number: AT&T Samsung Galaxy S II Skyrocket SGH-i727

[Anonymous]

Originally posted by: har...@thepetersclan.com

Tried multiple roms:
Stock ics 4.0.3 - 4.0.4 = doesn't work same problem as above.
Stock jellybean 4.1.2 = works.
paranoid 4.4.4 = doesn't work same problem as above.
beanstalk 4.4.4 = doesn't work same problem as above.
slim 4.4.4 = doesn't work same problem as above.
slim 4.3.1 = doesn't work same problem as above.
slim 4.3.0 = works but has a lot of static drop out noise in audio.
slim 4.2.2 = doesn't work same problem as above.
slim 4.1.2 = works.

So I guess I will be using slim 4.1.2 jellybean it's the best I found so far.

[Anonymous]

Originally posted by: har...@thepetersclan.com

Tried some more roms:
CyanogenMod 10.1 (4.2.2) = works with backend set to java.
CyanogenMod 10.1.1 (4.2.2) = doesn't work.
CyanogenMod 10.1.3 (4.2.2) = works with backend set to java but needs the mic gain cranked way up.
CyanogenMod 10.2 (4.3.1) = works when echo canceler is set directly (not auto) and the Use Mode audio API is set and the OpenSL-ES backend is set.
Beanstalk 4.4.2 = doesn't work either the same problem listed above or if you enable the Use Mode audio API it appears to disable echo cancelation and you have an echo.
Slim 4.3 Build 2.2 1747 (4.3.1) = works when echo caneler is set directly (not auto) and the Use Mode API is set and the OpenSL-ES backend is set.

It appears that most jellybean roms will work when the right setting combination is used but no Kitkat roms work.

[Anonymous]

Originally posted by: har...@thepetersclan.com

Ok after looking into it some more any kitkat rom based off of CyanogenMod doesn't work.

Any kitkat rom based off of AOSPA works with the echo canceler set directly and the Use Mode audio API set.
The paranoid rom(AOSPA) I mentioned above as not working earlier does work I didn't know about the Use Mode audio API yet.