Audio pops and clicks

Thanks!

Here it is:
http://paste.osmc.io/urepodubov.coffee

Please describe what hardware is connected and the video and audio paths in use.

Please update OSMC first.

Sam

1 Like

Audio going via HDMI to Onkyo TX-SR705, 5.1 output from the AVR via standard speaker cables.

I had these same pops and clicks when I had RPi 3 with Kodi as my media center so might be hardware related, but thought maybe it’s related to Kodi as it’s not consistent, only happens with some files and only with this source.

See if turning on Settings > Player > Adjust display refresh rate to On start/stop helps. That’s the normal recommended setting for the 4K.

I never followed up here. No, that setting didn’t help, i still get those clicks and pops.

Have you tried playing with settings>system>audio>keep audio device alive setting? If that doesn’t make a difference I would suggest you submit a new log as your old one has been deleted from our system.

That didn’t help, either.

Here updated log
http://paste.osmc.tv/gododahura.xml

I have been having exactly the same issue when pausing, rewinding of ffw. One speaker will emit a loud click/pop. Not always the same speaker.

It sounds like your AVR is having a bit of an issue when kodi has to resync the audio. Setting the adjust refresh rate as bmillham suggested above should have gotten rid of the need to resync the audio for most content, but you said that had no effect. All I can think of here is to either try to route the audio over Toslink (same signal but your AVR might handle it better) or just turn off passthrough. Since your connected directly to your AVR the sound should be the same as without passthrough.

Toslink doesn’t do multi-channel audio IIRC, certainly not DTS HD-MA or TrueHD. I have an old Onkyo SR-SX705 which I’m planning to upgrade this year when HDMI 2.1 AVRs are finally released, but would be nice to find a solution before that as AVR manufacturers have been dragging their feet with HDMI 2.1

Are there any other settings to play with?

Toslink does multichannel via bitstream but those two formats do require more bandwidth than it can supply. If you enabled AC3 transcoding then they would both still output in surround but in reduced quality (only actually needed for the TrueHD as DTS will output the core DTS stream). If you turn off passthrough and allow the Vero to decode the stream you should get full quality to your AVR via multichannel LPCM.

As far as other settings to play with keeping it configured the way you have it I think your just down to the “send low volume noise option” but if the “keep audio device alive” option had no affect I don’t have a lot of confidence this would make a difference. Maybe try a complete stab in the dark and try turning hpd lock on?

I tried all those options together including HPD lock on, and didn’t help, unfortunately.

I have an extra Toslink cable lying around, and will test with that. Thanks!

Your connected audio device is able to process full 8 channel audio! Why not let this device remap the audio signals to the existing speaker configuration instead of the Vero? Is suggest you set

  • settings->system->audio->number of channels to 7.1

and

  • settings->player->video->adjust display refresh rate to start/stop

in any way.

I don’t know if the Onkyo receiver contains the TI DSP chip mentioned in this post?

It happens to be in my two Yamaha RX 673 receivers and now I finally know what’s causing audio drops… :unamused:

This chip has been used in many (older) receivers and due to a design fault started failing. When it happens it takes a while before you realise it’s your receiver and not your source.

But as far as I know it doesn’t result in pops and clicks so it’s probably something else.

2 Likes

Yes, my AVR can process eight channels, but I have a 5.1 setup so I have set it to 5.1 in Kodi settings. Not sure if it makes a difference to do that in Kodi vs AVR?

But more importantly, I noticed there was another setting, “output configuration,” which was set to Optimized. I set it to Fixed, and the clicks are gone! I have to do further testing to see if that fixes the issue for good, but this looks really promising!

Were the clicks there if that setting was set at its default of “best match”?

The clicks come back with Best Match, tried with two different video files. Fixed is the only Output Configuration which doesn’t have clicks.

Does Fixed resample in some cases, as the description here suggests? If so, how can I avoid resampling?

Honestly there is a bit of mystery to those options. From what I understand the answer is yes, it must resample if you have fixed selected whenever the source file does not match whatever the output is set at.

The only way I think you could avoid that is to purchase a new AVR or just turn off passthrough and let Kodi send the audio as LPCM. If you do the latter the only thing you should notice different is what displays on the screen of your AVR. The sound quality should be the same.

@klaaatu: Please, could generate a new log set with configuartion

  • settings->system->audio->number of channels is 7.1

  • settings->system->audio->output configuartion is best match

  • settings->player->video->adjust display refresh rate is start/stop

The last and only one you provided does not show a real channel number switch but contains only a 2 speakers configuration by the optimized setting.