Bending notes with PT2399…

i’ve been experimenting with this PT2399 chip and using various schematics to create a digital delay circuit. the delay time seems to be directly attached to the sample rate since lengthening the delay time gives a nice decrease in pitch. i’m toying with the idea of dropping a time constant in around the controlling delay time circuit to see about achieving a “tape warble” sort of effect. we’ll see what works.

here’s the schematic i’ve been working with though the values i’m using are hardly similar.