Strange sounds during takeoff roll

Here's a small distraction from the earnest work of preparing our letters to Santa.Imagine,if you will, a small man(or woman) rattling a bucket of rusty spanners in your ear everytime you're on a take off roll. Such is the sound coming from my speakers from clearance to rotate.Even with the sound sliders to zero,he's still rattling away.Curiously,when I press Esc and the Resume/End//View window comes up,that hidious noise is still going.The same is true when the pause button is pressed.Does anyone know what is causing this, 'cause it's driving me mad!
I should point out that this problem is only occuring with what i call my "frankenstein" aircraft.You know....a panel here, a model there and textures and sounds wherever you can get 'em. So if anyone has any suggestions about how I might silence "Boris" I'd be most grateful.
regards
kevin
I should point out that this problem is only occuring with what i call my "frankenstein" aircraft.You know....a panel here, a model there and textures and sounds wherever you can get 'em. So if anyone has any suggestions about how I might silence "Boris" I'd be most grateful.
regards
kevin