Reply To: LP-16 as Mac audio interface problem – grainy sound

In Case it’s of help to anyone. Initially encountered the very same issues as described above in interface mode. Mac Book Pro 15″ 2019, 16gig ram. Mac OS Mojave 10.14. Logic Pro X 10.4.3

Initially resolved by.

Replacing faulty (supplied) USB Cable
Updating LP16 to current firmware
Changed audio buffer in Logic to 1024

Problem re appeared randomly after a few days, sometimes days apart. A simple restart of logic would often fix.

Finally resolved by

Deleting Logic Pro X “.plist” preference files and restarted computer
Launched Logic and changed only the audio buffer to 512.

System now stable.