The Yamaha AN1x Synthesizer mailing list

spaceanimals schreef:

> Ran an AN1x patch through an analyzer program. The synth has 
> frequencies up past the 20,000 hz. Does this somehow damage digital 
> recordings that only record up to 20,000hz. Where do the other 4-5 
> thousand hz go?

They'd be filtered out. On a digital recorder with a sample rate of n 
Hz, you can't record higher frequencies than n/2 Hz. So that's 22.05 kHz 
at the normal 44.1 kHz CD sample rate. And they'd be filtered down from 
full volume to zero starting at 18 kHz, which a low pass filter.

- Peter