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Buzzing Noise on Logic Pro with Input Monitoring

Whenever I try to record audio, and use input monitoring, there's a quiet but extremely irritating, and constant, buzzing sound. It stops as soon as I switch off input monitoring. It happens whether I'm using headphones via my scarlett solo or my macbook's headphone jack, or whether I'm using the mac's internal speakers. I can't record anything with it happening because it's literally just buzzing over everything I do, and if I don't use input monitoring, I can't hear myself sing!

I've tried experimenting with the latency/buffer size, and that hasn't worked. I've tried restarting Logic and the scarlett solo, to no avail.

It only seems to happen when I'm using my mic, rather than the macbook's internal microphone, which could suggest it's a mic issue. If that's the case: what do I try for this!? How would I know if it's the microphone causing the problem?

Any suggestions?

MacBook Pro 15″, macOS 12.6

Posted on Nov 23, 2022 4:11 AM

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Posted on Nov 23, 2022 4:37 AM

I don't, but now you mention earthing, I've had a fiddle with other mains-powered stuff in my recording area. It seems to be linked to the mains cable for my laptop: when it's plugged in, it buzzes, and when it's not, the buzzing stops!

You led me to the problem - thank you!

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Question marked as Top-ranking reply

Nov 23, 2022 4:37 AM in response to octopi

I don't, but now you mention earthing, I've had a fiddle with other mains-powered stuff in my recording area. It seems to be linked to the mains cable for my laptop: when it's plugged in, it buzzes, and when it's not, the buzzing stops!

You led me to the problem - thank you!

Buzzing Noise on Logic Pro with Input Monitoring

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