Can someone tell me what ratio is in sound compression

R

radiogold

New member
I've just finished recording a radio program in Sound Forge 4.5. I've also got 6.0, but prefer 4.5 as it does a much better job in sound compressing. I'm wanting to do this in the graphic dynamics. I understand how the attack/release and threshold work, but located just under neath the threshold slider is the ratio slider. Can someone tell me how this ultimately effects the compressed audio wave.

Thanks
 
Here's an example of how the ratio control works.

4:1 - The input signal will have to cross the threshold by 4 db in order for the output level to increase by 1 db.

An infinity to 1 ratio means that the output signal won't increase at all no matter how far above the threshold the input signal is. This is known as limiting.

Hope that clears it up for you.

Stray
 
i think that with out the ratio slidder moved at all, nothing will be compressed. i mean in order to compress the wave, you need to tell it how much TO compress... i know that is obvious... an example of good settings are (after normalizing your takes...) put the threshold at -24db and have a ratio of like 1:4...
 
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