Rattling the Speakers

  • Thread starter Thread starter Rusty K
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Rusty K

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Hi,

A little problem....I put a chorus effect on a guitar and it's causing my desktop monitor speakers to rattle. It's not a bass rattle. My Sony MDR 7506 headphones don't show any problem though.

Should I worry about this or is it just more probably a problem with my less than perfect monitor speakers?

Thanks,
Rusty K
 
Spinsterwun,

And the best way to "check" the frequencies is? You mean going back to eq and pulling freq's out till I get the right one?

Thanks,
Rusty K
 
Many wave editors have a spectrum analyzer built in. Select the part of you mix which is causing the problem and see what frequencies are there.

My guess is that you have some very low frequency content in your mix. Are your monitors ported? Most are. Ported speakers have very poor damping below their tuning frequency (near the lower cutoff frequency) and can defiantly rattle if you tray anf drive them too low.

You may need some high pass filtering to get rid of this problem - preferably on the individual track(s) which is(are) the culprit(s).

... just my guess.

barefoot
 
barefoot,

My wave editor doesn't but I do have one if I can find it on my computer.

So what should I look for, some kind of spike?....then eq those freq's out?

As I stated earlier the mix sounds fine in my headphones (which I trust more than the speakers).

Rusty K
 
Headphones can often take low frequencies almost down to DC without much trouble, so they won't necessarily point out these kinds of issues. And this stuff may be so low that you can't actually hear it - just its effects.

You don't really need a spectrum analyzer. I would start out by running the entire mix through a high pass filter cutting all the frequencies below, say, 30Hz. If the speaker rattling goes away, then you know you're on the right path. Then try just filtering individual tracks (especially bass and drums) to see if you can get rid of the problem less drastically.

I would adjust the corner frequency and low cut just enough so the rattling goes away, then raise the corner frequency by about 5Hz and cut the lows by a few extra dB's just to be safe for other systems as well.

barefoot
 
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