via 8bc
Big Bass:
Normally with the SN76489 (on the Sega, for example) there isn’t much bass at all (ie. the chip can’t go very deep in pitch), which is why I thought I would underclock a discrete SN76489 and see what it sounds like.
Read more with audio examples.
Let’s Change The Duty Cycle:
Some further experimentation with the under clocked SN76489 revealed that it is possible to change the duty cycle of the sound output without too much effort.
Read more with audio examples.
Timbral Droner:
A hypnotic droning sound, due to phase differences and duty cycle changes.
Read more with audio examples.”