I use UbuntuStudio 18.04.1 LTS into an HP 250 G5 Notebook machine.

I've experienced some time randomly cuts and very small time repetitions (one second or less) when I record and/or playback audio and/or video.

It doesn't matter the audio and/or video quality, the issue is always present.

It is the same when I playback my music scores (MIDI) with MuseScore software.

It seams like some "cryptic" task is running by the system, from time to time, and that job is causing this issue. But, I don't have any clue about which task could be!

Can somebody teach me how to fix this?

It is very important to me, because I need to use this computer into some live presentations, soon! But... With this issue...

What could be wrong here?

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