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Master feedback and noise protection

How to filter out or encourage feedback and noise when recording

In music production terms, recording yourself and monitoring your performance can prove troubling. What happens when sound output feeds back into sound input? Well, yeah, you get feedback! Those ghostly howls or ear-splitting shrieks aren’t always welcome. GarageBand, of course, enables monitoring as you play or sing, but if you’re using external speakers rather than headphones, feedback can occur.

The app provides feedback protection that only enables monitoring during recording, however this can be toggled as desired. In addition, the provision of an Automatic Level Control and a default Noise Gate plug-in offer options for cultivating or cutting out noise. Here we’ll quickly highlight those features and what they mean for your projects.


1 Track monitoring

Input Monitoring applies to audio tracks, recording microphone or guitar. This can be activated via the New Track dialog or from the track header and inspector panel.


2 Feedback protection

The Smart Controls Inspector has a Feedback Protection checkbox that restricts monitoring to during recording only. Turn this off should you wish to encourage feedback.


3 Feedback detected

With the Feedback Protection checkbox enabled, GarageBand will mute the monitoring and issue warning prompts to highlight that feedback has been detected.


4 Noise Gate

The Noise Gate is a default track plug-in. With it ‘on’ you use the slider to further filter out background noises, typically clicks and signal hisses being picked up.