i68 / R68 Audio Stutter Test Fixes / IEC 61937 HD Passthrough

[Shomari]

Hola Shomari...
I tried the rom, wifi works with the fix, there are problems with google play, I had to download the google play services apk ... after many problems google play worked ... I only tried YouTube and TuneIn ... in both programs much Stuttering ... when in TuneIn listening music in background while doing a little demanding cpu things (how to install or open some program) there was a lot of stuttering ... on youtube at the beginning of the playback there was also a lot of stuttering .. In the rest of the video also suffered stuttering but less ... stuttering only happens when watching HD (720 1080) videos ... when I watch SD videos there is no stutter ... Another thing I do not know if is related or not with this, is that in all 5.1 ROMs at the time of running the antutu (3D test) instead the background music, i hear only choppy noise ... wasser and geekbox (both Android M) are the only roms i tried that the background music is heard fine in the test ... muchas gracias por tu trabajo, saludos!!!

De nada! Thanks for the feedback; You should hear the antutu track just fine in version 2 of the february version, I think even v1. But that's not really the cause, it's your particular device that's troublesome in terms of audio.

[Jura46]

mo123 solved this problem! v1.5LP, v1.1MM. he borrowed the idea?Why reinvent the wheel?

[Shomari]

mo123 solved this problem! v1.5LP, v1.1MM. he borrowed the idea?Why reinvent the wheel?

I don't know what you're talking about; I haven't seen any solution. Whatever works for you, use it. I have an objective and started a thread to help achieve it. Simple.

[Shomari]

I don't know what you're talking about; I haven't seen any solution. Whatever works for you, use it. I have an objective and started a thread to help achieve it. Simple.

Just to be clear, if it was 'solved' (it's not) it wouldn't persist, let alone return suddenly from one version to the next.

Nevertheless, this isn't a philosophical or tactical discussion. I laid out clearly the purpose of the thread. Any more posts derailing what's already a difficult-to-coordinate process will be deleted. If you have a better way, start a thread or contribute a meaningful post. Time is short, please don't clutter this specific thread with your objections or reservations.

[Shomari]

...I have some good news. At least as far as debugging goes, it's good news. Some progress as far as hunting down the issue is concerned.

For the first time ever, I've finally been able to reproduce the 'stuttering' audio on my device. That's good because it means I now finally know what users have been talking about, and I also can debug more closely to see exactly what it is I changed to finally bring the issue to my device. Bad news is that what causes the stutter on my device, might just be the cure on the i68/R68 that have the stutter when mine doesn't. Because when people report the stutter I never have it, and never knew what it was or sounded like until today in testing...

[Shomari]

Can anyone with stuttering audio grab a dmesg and post it here, please?

I noticed when I reproduced the issue I saw the RK video service stop, reset and restart repeatedly in the logs. The issue is most likely with the vpu configuration.

I eliminated the issue causing the vpu to reset and haven't been able to produce any more stuttering. If anyone can produce a log it would be mighty helpful. Platback YouTube or whatever media shows stuttering and after simply run dmesg and we can compare the output and I suspect there'll be similar behavior.

[sonoman]

Can anyone with stuttering audio grab a dmesg and post it here, please?

I noticed when I reproduced the issue I saw the RK video service stop, reset and restart repeatedly in the logs. The issue is most likely with the vpu configuration.

I eliminated the issue causing the vpu to reset and haven't been able to produce any more stuttering. If anyone can produce a log it would be mighty helpful. Platback YouTube or whatever media shows stuttering and after simply run dmesg and we can compare the output and I suspect there'll be similar behavior.

Hi shomari!
do you have a tutorial to make a dmesg ?
i would can do it
greetings!

[Shomari]

Hi shomari!
do you have a tutorial to make a dmesg ?
i would can do it
greetings!

...

install android terminal emulator, open the terminal and type

dmesg > /sdcard/dmesg.txt 

then upload that file here please..

y como siempres, muchisima gracias.

[sonoman]

...

install android terminal emulator, open the terminal and type

dmesg > /sdcard/dmesg.txt 

then upload that file here please..

y como siempres, muchisima gracias.

OK, a la noche lo hago... la única duda q tengo es q para hacerlo solo basta encender el equipo y ejecutar el comando o tengo que estar reproduciendo audio mientras lo ejecuto??

[Shomari]

OK, a la noche lo hago... la única duda q tengo es q para hacerlo solo basta encender el equipo y ejecutar el comando o tengo que estar reproduciendo audio mientras lo ejecuto??

es mejor reproducir audio antes de ejecutar el comando, asi si hay fallo se puede grabar alguna prueba de que sucede, pero no es necesario reproducir audio mientras ejecutas

[Argaricolm]

https://yadi.sk/d/xhj8BBX13F4gc7

Here are 2 dmesg logs from wasser firmware.
What happened:
I'v played Angry Birds Transformers game. Suddenly it froze (for long). I was able to go back to OS (game in background) and made logs. There was an issue with sound too. It was not as like "stutter" but like continuous noise. This noise was happening even when game was terminated (log 2 is when game was terminated but noise is still there). After some loooong time noise stopped but there was no audio at all and OS was lagging even in settings. Everything returned to normal only after hard restart (power disconnect).
So it may be related. During game I have some freezes like for 1-4 seconds when sound disappear - but then it returns back when unfreezing.
This long sound problem is first time so it must be very rare like stuttering problem.

[Shomari]

https://yadi.sk/d/xhj8BBX13F4gc7
Here are 2 dmesg logs from wasser firmware.
What happened:
I'v played Angry Birds Transformers game. Suddenly it froze (for long). I was able to go back to OS (game in background) and made logs. There was an issue with sound too. It was not as like "stutter" but like continuous noise. This noise was happening even when game was terminated (log 2 is when game was terminated but noise is still there). After some loooong time noise stopped but there was no audio at all and OS was lagging even in settings. Everything returned to normal only after hard restart (power disconnect).
So it may b e related. During game I have some freezes like for 1-4 seconds when sound disappear - but then it returns back when unfreezing.
This long sound problem is first time so it must be very rare like stuttering problem.

Just to be clear - this is with Wasser's kernel/resource - not mine. There are literally hundreds of differences between the two, if not more, so it impacts behavior in different ways.

Your issue is a nasty segfault that occurs due to wasser's kernel and resource. I've never seen anything like that on my firmware. Something is wrong with the graphics in that build and it spills into the audio, I don't anything else because I've never had that build on my device nor do I know what's in that resource/kernel specific to that bug.

Still have yet to receive a single dmesg with my firmware. That's why I closed the thread the first time, it's pointless if no one wants to participate in finding a solution.

Unlike other contributors here, I don't work for any manufacturer, directly or indirectly, and that's why I don't brand my releases with any manufacturer's logos, or confine my work to a specific set of devices.

I don't have the i68/R68. I'm only trying to help. But if there's no interest in being a part of the solution I'll just close the thread instead of spinning my wheels to no end. Users want complete firmware, but don't want to be a part of getting there, or already have that complete solution.

Thanks for all your feedback, I'm not closing this thread in any way as a response to your post, please don't think that at all.

I've posted here more than anyone else, and I don't even have that device ... that alone should tell the story. Little interest in finding out what's really going on, and some seem to think the problem has already been solved elsewhere. I know it hasn't, but as far as I'm concerned, I'll just focus on my true octacore builds.

[Argaricolm]

I see. I thought issue is across different firmwares but same. I'll make logs on your firmware tomorrow.

[Shomari]

I see. I thought issue is across different firmwares but same. I'll make logs on your firmware tomorrow.

It's not feasible to debug across different firnwares - at least not at this stage - sometimes it can be; but not with this issue, particularly since no one has ever identified even a start point for debugging the cause. By the way Argaricolm your issue was related to play services in both cases. Try a different gapps version at least with that firmware, and see if it continues.

[scooter2014]

Members please test the firmware provided that way a base of issues from that can be checked. Its benifical to those with this device so help out testing whats asked to be tested. Cross firmware testing between different kernels ect causes more issues. So test as directed. Thanks for pitching in.

Best Regards