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johndkeene

Where Does The Feedback Suppression Actually Happen

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In a typical live band situation, 90% of the feedback issues come from the monitors with the vocal mics. So easy enough, enable the m20d's feedback suppression on those channels. The question is where does that notching happen? ie, if the feedback loop is between the mic and a monitor, does the notch happen pre-fader so that same notch will disappear from the mains as well or does the notch happen post and per send?

 

Hope that makes sense. I assume the notches are fairly narrow so probably not noticeable if they happen "pre" but I am curious...

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There are 12 notch filters per input. The filters are used as necessary. Usually just 2 to 4. These notch filters are extremely narrow and not audible in normal use. This way the filter only affects the one input that actually has feedback.

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But still notching "pre" so the same notch would be filtered from the mains. Not a big deal, just a curiosity...

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I wasn't sure, but was also curious since you asked the question. Sounds like it does affect mains and monitors. But, not noticeable. A good question.

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