The four-note melody plays in a loop for 40 seconds, speeding up each time. The first couple of times it is played, the listener percieves it as a melody and a harmony, but as the notes speed up, the listener starts to hear three different streams.
Here is my third homework submission for Stanford Music 220a.
This assignment is an auditory illusion using frequency modulation and auditory streaming. A short melody of four pitches is played into the left audio channel and a harmonizing melody is played into the right audio channel. The melody actually comes from the lyrics "little darling" from The Beatles' "Here Comes The Sun" (the song that I happened to be humming at the time I did this assignment).
The four-note melody plays in a loop for 40 seconds, speeding up each time. The first couple of times it is played, the listener percieves it as a melody and a harmony, but as the notes speed up, the listener starts to hear three different streams.