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Audio Drop outs - rpi buster

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Mike Noe:
Have you tried disabling the audio in config.txt (I know pi3 has a different driver), but on the Pi4 we can dtparam=audio=off.

Then make sure your device is set correctly in MediaCenter.

erviv:
Thanks for the suggestions. I increased buffering to 10s and still get some momentary audio freeze. I also tried, in addition, the change to config.txt. After rebooting my rpi I noticed I still have some random momentary audio freezes.
I reverted back to original configuration.
I thought I would play around with some other parameters. In Player/Options/Advanced  I unchecked Play as HDCD, and also in Player/DSPStudio I unchecked Volume Levelling.  I have not noticed any audio freezes with these changes. Coincidence or not. I might fiddle more to see if turning them back on individually makes a difference, but that is for another time.
As an aside I checked my stretch rpi to see whether these settings were checked or unchecked.  They are checked. The only other difference between the two from what I can see is that the stretch rpi is connected to a better DAC so no conversions are necessary for music above 96khz. I can't recall at the moment whether the freezes were only for music at 192khz being converted to 96khz. Again something to check for another day. Still I do know that prior to switching to buster that this music did not freeze.
So for now I am satisfied with the set up. 
I may swap out my SD card to see if the buster version works smoothly with my better DAC system, but for now I will leave that one running from stretch.

erviv:
I have done some more extensive listening, and still get audio drop outs. The files are not high res either. I have listened extensively to my stretch rpi also and on it there have been no audio drop outs.
I am back to thing this for me is a ‘buster issue. I will wait and see how MC26 performs on my rpi’s. I think I rechecked play as Hdcd on my buster rpi, but don’t see why that should have any effect, but will uncheck it again just in case when I get a chance to play on it again, sometime this weekend perhaps.

Sammy:
My experience with dropouts under Jessie was alleviated when I moved all my music off the USB attached drive to an SD Card.  Can't say for sure this is your problem but if you wanted to experiment you could move a few files over to the SD card and see if the problem goes away.  This does not mean that upgrading to buster didn't cause the problem.

bob:

--- Quote from: Sammy on December 14, 2019, 09:58:58 am ---My experience with dropouts under Jessie was alleviated when I moved all my music off the USB attached drive to an SD Card.  Can't say for sure this is your problem but if you wanted to experiment you could move a few files over to the SD card and see if the problem goes away.  This does not mean that upgrading to buster didn't cause the problem.

--- End quote ---
This indicates an issue with the I/O bandwidth sharing between the USB drive and USB DAC.
I would make sure that you get the device setup for real-time priorities for the user account MC is running under, that could help.
There is a thread about this https://yabb.jriver.com/interact/index.php/topic,118350.0.html

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