electrical buzzing

  • Thread starter Thread starter corban
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corban

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I'm recording with a MOTU 24i into Reaper and getting a pretty loud buzzing noise. I have everything powered from a cheapo Furman power "conditioner" but don't really have the resources to upgrade that at this point. It seems to happen regardless of mic used, cable used, preamp used, location, etc. Any advice for troubleshooting this problem?
 
actually let me update that. on a recent live recording i did, the buzz was coming mainly through one vocal track, which was an SM58. All channels were running through a snake, into an Allen and Heath mixer and from there I was taking the direct outs into my 24i. I guess it could have been the quarter inch cable to the 24i on that channel or the snake or something. But this is the same buzz I've heard when doing single tracks at home. Ideas?
 
you could check the q mix consol in the motu software making sure nothing has been switched on that could cause a signal loop

do you have the working project ? if so see which channel it happened on and trouble shoot that channel swopping gear and leads till you find the fault.

good luck ....looks like a late night for you.
 
the 24i doesn't use cuemix, or at least I don't use it. just going straight in through the 24i to reaper and out again to the 24i. i guess i'll check it just to make sure. And unfortunately the recording is done already, it was a live gig and we just had to do it with the buzz. So I can't troubleshoot it anymore but I sure would like to get rid of it for the future.
 
corban said:
I'm recording with a MOTU 24i into Reaper and getting a pretty loud buzzing noise. I have everything powered from a cheapo Furman power "conditioner" but don't really have the resources to upgrade that at this point. It seems to happen regardless of mic used, cable used, preamp used, location, etc. Any advice for troubleshooting this problem?
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In my experience, hum is almost always caused by a cable with a bad ground or a computer with a poorly designed power supply (without sufficient grounding). Power conditioners never help for this sort of thing (or at least not more than hooking everything up through the same power strip would help).

What kind of computer are you using?
 
hmm. well i built the computer myself, my first build, i forget what brand the power supply was but it was supposed to be a reliable brand. i guess i'll start looking at cables first if i can replicate the problem reliably. then if i have to the power supply could be replaced. dang.
 
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