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Old 01-13-2019, 09:20 PM
Velocity Velocity is offline
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What causes "flare" when testing audio equipment?

When people are testing audio stuff at concerts, what causes that sudden deafening "flare" of noise? (Hard to put in words)
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Old 01-13-2019, 09:38 PM
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friedo friedo is offline
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Do you mean audio feedback? It's caused when a mic picks up audio from the speakers and the gain is large enough that it re-amplifies itself and goes out of control.
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Old 01-13-2019, 09:50 PM
Velocity Velocity is offline
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Ah yes that, thanks.
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Old 01-14-2019, 04:08 PM
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Kiwi Fruit Kiwi Fruit is offline
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Quote:
Originally Posted by Velocity View Post
When people are testing audio stuff at concerts, what causes that sudden deafening "flare" of noise? (Hard to put in words)
The word I use is SQUEAL!
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Old 01-14-2019, 04:21 PM
Velocity Velocity is offline
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The word I use is SQUEAL!
Well, in this instance, it wasn't the squeal though. It was a sudden increase in acoustic vibration, in such a way that it made your whole body (and especially the gut) just have this uncomfortable "resonance" vibration flutter inside. Very potent.
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Old 01-14-2019, 04:35 PM
garygnu garygnu is online now
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I've heard that called whalesong. Our audio system was being tested to its limit and nobody was allowed in the theater/meeting room, but we could hear it from the control room (probably the whole building).
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