VO-BB - 19 YEARS OLD!

[JimRon]

This is new... getting a hum (or buzz) when recording. Never heard it before. Now all of a sudden i can hear it (and hear it loudly). Using a Sennheiser mic into a DBX 286A into an Alesis MultiMix8USB (connected via usb) into my dell running Vista and recording into audition 1.5.

It's only when recording into audition. if audition isn't recording, there's no buzz/hum. Maybe something got screwy with audition?

thanks for your help.

OY!!!

jim
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[Brett Mason]

No experience w/ stuff you got....but just a suggestion to checki-checki your cabling. Using high quality shielded cables, right? Also, make sure no cables are crossing over power lines. And check all connections are tight.


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[Edo]

Can you see it happening on the VU meters when recording as well? Unplug everything and record a blank file into your Audition... if there is still that hum/noise, you might have a problem with DC offset, which can be traced to a faulty power supply or interference with for instance a graphics card within your computer. If there are any spare PCI slots, you could try moving the soundcard to that slot, see what happens. If audition has the option of DC Offset compensation or something like that, give that a try. If no hum is present, it must be one of your pieces of gear. Just hook it up one by one... hum all of a sudden??? There's your culprit.

Good luck!

[bobbinbeamo]

Sounds like some possible grounding issue. I know this sounds simplistic, but try unplugging and then replugging everything. This has helped me every time.
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[Edo]

Also check whether there are any powerwires running parallel to signal cables. That WILL cause AC hum... if cables need to cross, make sure they CROSS (meaning a 90 degree angle... hence a cross)

Good luck!

edit: bit of an unneccesary remark, Brett did mention it before me...

[JimRon]

I've done the plug/unplug thing. i think it might be the board. the usb connection on the board is loose. i also think it might be the power cord thing too. i've got the usb cable running along the baseboard and it runs along side some power cords from other equipment. anyone know if radio shack sells filters for this sort of thing?

edo, i don't have a sound card. my board is a usb board that connects directly into a usb port... but if i can't solve this problem i think i'm gonna get a sound card. sam ash has an m-audio for under $150 that i see a lot of people like.

thanks for the help guys!
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[Edo]

[bobsouer]

[JimRon]

Edo,

You're absolutely right!

Plan tonight is to move the board to a different place to try to separate it from other equipment and clean up the cables. With the filters, I was just thinking ahead. Chances are I'll have to get a shielded USB cable, at the very least, anyway.
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[Frank F]

If you the time and the extra cables... or you can change out one set of cables at a time -- begin changing out each set of cables until you find where the problem is located. Or, begin by taking out of the chain one set of cables at a time until you do not hear the buzz, then replace the bad cables and you should be fine.

I hate work, but this is simple and just takes time.

Toodles

F2
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