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ALC 1150 Audio causing gain spikes and distortion

Joined
Aug 5, 2015
Messages
54
Motherboard
Gigabyte GA-Z97X-UD7 TH
CPU
i7-4790K
Graphics
GTX 950
Currently having an issue with my Dell AC511 Sound Bar, plugged in via USB 3.0, running on High Sierra

The issue is every couple minutes the audio has a gigantic gain spike, causing a distorted sound. If I turn the sound down almost completely I can hear the audio playing at a less distorted level. Then after a couple minutes it will return to its normal level.

What's odd is that if I use my Focusrite Saffire (plugged in via Firewire) as the audio source going to external speakers it never comes across this issue.

My Mobo uses ALC 1150 and I think I have all the right Kexts installed..
 

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toleda

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The issue is every couple minutes the audio has a gigantic gain spike, causing a distorted sound
Not possible for ALC1150 to have any effect on USB audio. More likely, another USB device is behaving badly.
 
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