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(2nd Oct, 2018 03:38 AM)Dzintars Bergs Wrote: [ -> ]I think, I have same audio glitches on Pi2 after recent upgrade. This happens while playing 720p mkv videos. Any suggestions how to resolve it?

No, unfortunately no idea Sad

- Which kernel ?
- OMX/MMAL Player ?
- Sound pass through?

I'm running 4.14.71 on my old Pi1, and having absolutely no issue playing 720p mkv's over WLAN network (SAMBA share)
(OMX, pass through)

Dzintars Bergs

I'm getting this in kodi log, when sound stutters:

Terminal
22:37:59.437 88320.203125 T:1882190592 ERROR: COMXCoreComponent::WaitForOutputDone OMX.broadcom.audio_mixer wait event timeout
22:37:59.438 88320.210938 T:1882190592 ERROR: CActiveAEResamplePi::Resample m_omx_mixer.WaitForOutputDone result(0x80001011)
22:37:59.825 88320.593750 T:1873801984 NOTICE: CAESinkPi:AddPackets Underrun (delay:0.00 frames:2400)
22:38:00.434 88321.203125 T:1706009344 NOTICE: service.libraryautoupdate-1.0.2 : Player is running, wait until finished


Kernel version - 4.14.72+
Sound pass through - disabled
MMAL player.

I haven't changed any audio settings, except Volume control steps.
OMX/MMAL you can find in Player setting, acceleration
Sound pass through: System setting, Audio

Dzintars Bergs

(2nd Oct, 2018 05:50 AM)Nachteule Wrote: [ -> ]OMX/MMAL you can find in Player setting, acceleration
Sound pass through: System setting, Audio

I edited info in previous post. Smile
Ok, what happens if you enable OMX, disable MMAL, enable pass through?

Does stuttering happens always or randomly?

Dzintars Bergs

It happens randomly, I haven't noticed any patterns.

I will try to change settings and see what happens.
Btw, I'm using MMAL only on Pi3(B+) because of not having MPEG2 license, but audio pass through is always enabled

And never noticed any stuttering there

Dzintars Bergs

Thanks for hints. I don't have any audio gliteches with OMX enabled, MMAL disabled and pass through enabled. Smile
(4th Oct, 2018 04:22 AM)Dzintars Bergs Wrote: [ -> ]Thanks for hints. I don't have any audio gliteches with OMX enabled, MMAL disabled and pass through enabled. Smile

Ok, sound good. So we come a bit closer to the problem Dodgy
I also have the random choppyy problem watching mkv on a RPI2 since a few kernel versions.
I can confirm MMAL disable and OMX enable solve the problem.

The PI is connected with HDMI through a Onkyo AV-Receiver.
Hmmm, tested yesterday with a Pi3, latest kernel (4.14.74+), no sd-card (NFSROOT), no OMX, no sound pass trough, active VNC connection, Kodi debug logs enabled, files on SAMBA share:

Absolutely no sound issue while playing 720p mkv, AC3 5.1

Will see if I can find 1080p REMUX video with DTS, to see how this goes.
After updating the kernel to 4.14.74+, the problem has gone.
Enable MMAL, all fine....
@Bastlwastl

Thanks for reporting. I think, this PR, merged into 4.14.74+, did the trick Smile
I confirm, the problem is gone. :-)
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