Playback Video - sound stuttering after March 5th Update

Wirncael · 4 April 2018 12:42

nvdias:

I’m also getting some sound stuttering after the March update in my RPi3
Errors in both pass-trough or processing sound to a 3.1 output (from a ac3 5.1ch source)
Relevant kodi.log ERRORS/NOTICES during playback (got with tail -f):

17:48:57.778 T:1886384896 NOTICE: CAESinkPi:AddPackets Underrun (delay:0.00 frames:1536)
18:08:10.918 T:1886384896 NOTICE: CAESinkPi:AddPackets Underrun (delay:0.00 frames:2400)

No relevant errors or warnings got from journalctl -f (running im a separate terminal window at the time of playing).

This is my advancedsettings.xml:
<advancedsettings>
	<cache>
		<buffermode>1</buffermode>
		<memorysize>123000111</memorysize>
		<readfactor>30</readfactor>
	</cache>
	<videolibrary>
		<cleanonupdate>true</cleanonupdate>
	</videolibrary>
</advancedsettings>
[NOTE] these sound stuttering issues seems to happen when transmission is downloading a file (not 100% sure) - this did not happened before March 2018 update

Same problem here, only happends when rtorrent is downloading a file (no matter the download speed). Not happening before March 2018 update.

duppieza · 4 April 2018 19:11

@sam_nazarko my audio issues have disappeared with a combination of the following.

Installed your latest build
changed the speaker setup to 2.0 from 5.1 on the setup - system - audio output - number of channels

Just thought I’d let you know.

FaustoGSR · 5 April 2018 12:58

mmmmmm…
Memorysize 0
Buffermode 157etc etc

I thinks there’s some errors… try to use the tag CODE

example

furfur · 5 April 2018 13:14

Aah, I was wondering how to enter code! Thanks.

But yes, after removing the cache settings in the advancedsettings, my sound issues went away.

nvdias · 5 April 2018 16:20

My current cache settings are:

buffermode 1
memorysize 123000111
readfactor 30

There’s no reason for this having sound issues. Further more, it was working before.

furfur · 5 April 2018 17:10

Maybe but I suggest you try removing your cache settings and see if the issue goes away. It worked for me.

nvdias · 5 April 2018 20:02

nope. I’ve just made the test:

removed cache settings.
restarted kodi.
started watching a movie
made transmission tart a download.

once there are enough peers to start downloading, the sound stuttering starts.

again: this DID NOT happened in previous versions.

[EDIT] after pausing transmission downloads and restarting kodi, solves the issue (up to the next transmission download )

chemamartin · 7 April 2018 08:24

I have the same problem, sound stuttering, and downgrade kernel, like Sam propose, work for me.

chemamartin · 7 April 2018 09:02

Other idea. In other sd i am a fresh install of osmc with the same sound problem. I view the solution proposal for cr4wler and I did it.
I add “dtparam=audio=on” in configg.txt, reboot and select “alsa” in system->adjust system->sound->audio output device.
This solve my problem.

Spongman1 · 7 April 2018 18:02

I’m seeing the same issue with kodi-bin_17.1+dfsg1-3_armhf.deb on kernel 4.14.26-2-osmc on my raspberry pi B playing mpeg-2 over SMB. audio drops out for ~ 0.25 seconds every minute or so, then the pitch varies for a few seconds as it attempts to re-sync.

sam_nazarko · 7 April 2018 18:46

Are you sure you’re running OSMC? That sounds like a Raspbian based package to me

nvdias · 7 April 2018 19:38

I confirm that using sam’s suggestion to force kernel version 4.9.29-10 solves the issue.
(I’ve also added “dtparam=audio=on” to config.txt).

I’m now watching a movie and transmission is downloading some files. all working just fine. No audio stuttering

Spongman1 · 8 April 2018 02:08

yeah, pretty sure. my sources.list looks like this:

deb http://mirrordirector.raspbian.org/raspbian stretch main contrib non-free
deb http://apt.osmc.tv stretch main

sam_nazarko · 8 April 2018 02:24

We’ve never produced: kodi-bin_17.1+dfsg1-3_armhf.deb

Doesn’t come from OSMC.

Spongman1 · 8 April 2018 05:27

so, where is the OSMC kodi .deb, then? i don’t see it on apt.osmc.tv.

i’m pretty sure i haven’t changed anything since installing. all i have done is update.

sam_nazarko · 8 April 2018 05:28

kodi-bin suggests you’ve run something like sudo apt-get install kodi. This is not an OSMC version of Kodi.

dpkg -l | grep mediacenter should show the proper OSMC package if you’re actually running OSMC.

sam_nazarko · 8 April 2018 05:29

Can people try staging to see if there are improvements?

Login via the command line
Edit the file /etc/apt/sources.list
Add the following line: deb http://apt.osmc.tv stretch-devel main
Run the following commands to update: sudo apt-get update && sudo apt-get dist-upgrade && reboot
Your system should have have received the update.

Please see if the issue is resolved.

I also recommend you edit /etc/apt/sources.list again and remove the line that you added after updating. This will return you to the normal update channel.

Spongman1 · 8 April 2018 05:32

osmc@osmc:~$ dpkg -l | grep mediacenter
ii  mediacenter-addon-osmc               3.0.657                      all          OSMC addon for mediacenter
ii  mediacenter-eventclients-common-osmc 1.0.2                        all          Eventclient common resources for mediacenter
ii  mediacenter-send-osmc                1.0.0-4                      all          Eventclient send for mediacenter
ii  mediacenter-skin-osmc                17.0.4-2                     all          OSMC skin for mediacenter
ii  rbp1-mediacenter-osmc                17.6.0-24                    armhf        Media Center package for OSMC

sam_nazarko · 8 April 2018 05:34

Not sure where you got kodi-bin_17.1+dfsg1-3_armhf.deb from then. If you have dpkg -l | grep kodi (kodi packages) on your system, you have contaminated your installation.

Spongman1 · 8 April 2018 05:35

this returns nothing.

my apologies, i got the kodi-bin version from apt-cache show since i figured that’s what would have been installed.