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Subject:impact or whoosh sound effects
Posted by: Peter_Panasonic
Date:4/23/2005 9:20:01 AM

Hi guys,

How do you create impact or whoosh sound effects that you often hear in movies and on TV. You know when there is a speed change or something flies across the screen.

I read somewhere that it can done by slowing down the sound of a speeding sports car, is this true? – Is there a way of creating these effects from scratch using the FM Synthesis tool in SF?

I’d appreciate any help that I can get.



Subject:RE: impact or whoosh sound effects
Reply by: Rednroll
Date:4/24/2005 5:13:26 PM

When a sound is moving and approaches you, the pitch is usually higher,and gradually increasing in level, as it passes by you the pitch lower in level and decreases in volume. Read up on the dopler effect for more information. So in sound forge you would be recreating the dopler effect by using the pitch bend process as well as the volume envelope, as well as the Pan evelope, to get it to go from one speaker to the other.

The actual sound of the sports car most likely can't be recreated using the FM synthesis tool. Hollywood uses recorded sounds of the speeding sports car, or get's a pre recorded Sound FX from a sound FX library. Usually it's the same thing of Whoosh sounds. The whoosh sound might be achievable to create in the FM synthesis though.

Subject:RE: impact or whoosh sound effects
Reply by: Iacobus
Date:4/26/2005 11:57:48 AM

You can coax some really freaky stuff using the FM synthesis tool.

For an impact-type sound, you obviously want something sudden that also trails off just as fast.

To get an idea, whip up the "FM Bass" preset. Change the 1st operator's shape to "Brown Noise." Change the 2nd operator's shape to "Pink Noise."

What you can then do is mix this sound with another, like the sound of junk smashing.

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