Stereo delay with feedback.
Illustrating the use of a simple digital delay as an audio effect. The input is added to a delayed version of itself. The effect
is enhanced by feeding back the output of the delay into its input leading to a succession of decaying echos.
Experiment with the delay and mixer settings to explore the interesting behaviour of this simple yet versatile combination.
Widen the stereo field by adusting the left delay to be different from the right.