Test Tone Generator

[hooper]

The attached file is a simple test tone generator.  It can generate a sine wave from 100hz to 20,000hz.  Copy it to a file on your hard drive and then open it from there.  Make sure your speakers are turned on... preferably with the headphones plugged in.

Check out what a 100hz tone sounds like, and then explore 1000hz, 5000hz, 12000hz, etc.  It's another way to get some reference as to what those numbers mean next time you go messin' with the settings on an equalizer.  I think it's astonishing how high those tones are once you get above 5000hz or so!

This is also a way to demonstrate the Flecher-Munsen effect:  Turn the volume down a bit and then set the frequency up to about the highest tone you can still hear. Probably around 10-12000hz for most of us older guys. Now nudge the hz up a little more until you can no longer hear it.  Then nudge the volume up a little more until you can start hearing it again.  

Fletcher and Munsen figured out that volume affects the extreme upper and lower ranges of our hearing before it affects the middle ranges.... A good reason to check a mix at differant monitoring levels and never mix at high monitoring levels.

[Davo]

Neat thanks for that.

[guitarron]

thats great advice Ken-thanks