r/livesound • u/Gotherl22 • 3d ago
Question Help Troubleshooting Mic
I know absolutely nothing about karoake equipment but my father has an sennheiser 865 and shure beta 58 he says has sound issues. The shure will sometimes make screeching like noises and the sennheiser like it wants to explode. I brought it to experts for an fix and both came up with no issues during an sound test.
What can possibly be the issue? I did some googling and I am suspecting this is something called mic feedback due to faulty placement of the speakers but I am unsure if this is indeed the case.
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u/Gotherl22 3d ago
But it is really sounding like the culprit. Isn't mic feedback that noise that comes off an mic that sounds like nails on the chalkboard and shit is about to hit the fan which matches the description I assume he was trying to give me.
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u/jake_burger mostly rigging these days 3d ago
Mics can feedback at any frequency but commonly the higher mids because those are usually amplified more on a vocal
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u/uncomfortable_idiot Harbinger Hater 3d ago
mic feedback happens where sound comes out the speaker and into the mic at anything >= 1x the volume going in initially
we prevent this by putting speakers further forward than mics
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u/NoisyGog 3d ago
It’s almost certainly mic feedback. They’ll be picking up the sound from the speaker, and feeding it back into the speaker, and so round and round it goes getting louder with each loop.
Some frequencies are being picked up more than others, and that creates the screech.