mic buzz?

Koushirou · Post by **Koushirou** » Sun Sep 04, 2005 9:52 am

for some reason on my mic'ed tracks (using shure sm57 and sm58 into maudio ozone), i hear a buzzing noise. uhm, is there any way to deal with this, thanks?

Kamakura · Post by **Kamakura** » Sun Sep 04, 2005 2:05 pm

Sounds like the mic cable might be lying over a mains (ac) cable... If it is just move it away and the hum will go. Or you might have an earth loop.

c hack · Post by **c hack** » Sun Sep 04, 2005 2:47 pm

Or the mic could be near something like your monitor. Try moving it around.

Koushirou · Post by **Koushirou** » Sun Sep 04, 2005 9:32 pm

these tracks were recorded with a friend who recently moved away... so basically they can't be re-recorded. is there anyway to reduce buzz by way of effects or something? thanks.

Kamakura · Post by **Kamakura** » Mon Sep 05, 2005 2:19 am

Koushirou wrote:these tracks were recorded with a friend who recently moved away... so basically they can't be re-recorded. is there anyway to reduce buzz by way of effects or something? thanks.

No, not without changing the track itself to some degree.
You could try hi and/or low pass filters, depending on the type of buzz.
Or parametric eq, or a 32 or 64 band graphic eq (the more bands the better).

Others might suggest a better solution...

Tonamel · Post by **Tonamel** » Mon Sep 05, 2005 3:34 am

Audacity has a Noise Removal tool that works fairly well. You might try that.

j$ · Post by j$ » Mon Sep 05, 2005 3:53 am

Shareware audio editor Goldwave has a noise reduction tool but it tends to flange the death out of everything.

However what you can do in Goldwave you can noise-reduce against the clipboard. What you do is select and copy a piece of the audio that is only the noise you want to remove then tell it to search and find that sound - I would only set it at 50% or less hwoever - otherwise it sucks a lot of the surrounding sound as well. It's a play-off between aural cleanliness and flange horror, basically.

j$

Southwest_Statistic · Post by **Southwest_Statistic** » Mon Sep 05, 2005 6:46 am

What about finding the fundimentally annoying frequency and then inverting the filtered wave form over the other audio track?

HeuristicsInc · Post by **HeuristicsInc** » Mon Sep 05, 2005 5:40 pm

the usual problem with that (swstat) is that most forms of noise are too changing/complex to filter correctly, and it's a somewhat more complex problem than all that. if it's a small frequency band that the problem occurs in it's easier, but it's generally not.
-bill