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Job_OC

macrumors newbie
Original poster
Jun 26, 2020
1
0
Hi,

I have a Late 2013 Imac 27" running on Mojave 10.14.6. A few days ago suddenly my sound started acting up. Every two minutes or so the sound stutters and echoes/feedbacks in to itself for 2 seconds. Like someone switches on a guitar delay effect pedal. And then suddenly stops when it gets too much. It happens when I play something of iTunes, Safari, or Logic Pro X and only with external soundcard not the internal speakers or internal headphone output.

I checked with different external soundcards and it happens when using an UAD Apollo Twin over thunderbolt and a RME Babyface Pro over USB. Both soundcards have latest updates and firmware.

Maybe it has to something with my harddrive? but it also happens when I preview a music file directly from an external USB or SSD.

I have absolutely no clue what it could be. All help very much appreciated.
 
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