this is an analog sawtooth oscillator that is modulated by a variable rate lfo.
the top left knob changes the rate of the lfo. the top right knob changes the pitch of the oscillator. and the middle knob controls the depth of the lfo.
the video starts without any external effects. later, a phaser effect is introduced. then the signal goes through both a phaser and a delay pedal.
Oh man I could listen to this forever.
Hellchoir 2 years ago