75. Unit Delay

A Unit Delay delays the wave by one sample (1/44100 second for a sample rate of 44100 Hz).

For a triangle wave, we add the triangle and its delayed version. This will just get the sum of two samples, actually averaging, since the amplitude of triangle is 0.1.

This is a low-pass filter (simple moving average).

This is the structure view:

This is the panel view:

This is the Audio specturm of triangle (left) and triangle + unit delayed triangle (right):

We can see the higher frequencies are attenuated.