Stealth Distortion
I'm playing around with a simple program to synthesize sounds, and I've managed to make a sound which looks just like a perfect sine wave, but sounds like a sine wave with some dirt (maybe a bit like a harmonica). I call it stealth distortion. This is what the wave looks like:
This is what it sounds like (FLAC. ~100KB)
I put an envelope around it, so you get half a second of fade in (no distortion), one second of distorted sound and half a second of fade out (no distortion). I'm pretty confused by the whole thing, because I didn't intend for it to sound like this at all.
You might think that I've snuck in some odd harmonics that are subtle so you can't see them. Well, I'd like to think so too - but here is the spectrum of the distorted bit (narrowband filter of 8192 samples, using a Hanning window):
It is late, so I'm assuming tomorrow I will realise that I'm an idiot.
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