Octaver Pedal.

This delay based effect is based in dopler effect. I think the way of gettin 1/2 octave up would be increasing index by 1.5 instead of by 2. As this is not possible, you could have a real index variable, and increment it by 1.5 each iteration, but only use its int part for accesing a position in the buffer. For example, assume that you start at position 1. The next iteration should be at 1+1.5=2.5 for getting a 1/2 octave shift. So you use the position (int)2.5 thats equal 2. The next iteration should be 2.5+1.5=4. Sou you use sample 4. This would make you skip a sample every 3, and get a pitch shift in the middle. This is just an idea, i have not tried this.

Hello,

Does anyone know where I can find the study mentioned? The links are now "FORBIDDEN"

Thanks, Aaron

JR wrote:
" D. Goswami, H. Narula and C. Rogers have the best study about Real-Time DSP Pitch Shifting applicable to Arduino/C programming I have ever read"

Hi guys, I'm bringing this topic back to life as I have this plan in my head... and need your help (if you're willing to help).

So I haven't worked with arduino for a while even though 10y ago I did my master theses about it!
However, I was using pure data/pduino as I'm null with coding!

Anyways, I'm building guitars and now I wanna embed a pedal circuit in one of my guitars. This is a mini guitar that is gonna have a natural high pitch sound to which I want to apply an Octaver to (octave down). All variables are to be constant, so without pots to control them. The only thing I want to have there is a switch (On or Bypass). Maybe a switch (ON/Mix/Bypass)... just thinking...
My idea is to have the smallest arduino possible, ideally a Nano...

Doable? Ideas?

Thanks in advance