Do you have an AY-3-89xx or SN76489 in your stash ??

State Machine

Just curious about how many of you have the AY-3-89xx series of digitally programmable sound chips lurking in your parts bins. I have a bunch, 20, I am really looking to do something with and wanted to hear some stories of your experiences with them.

Here is a couple of reference web pages you can get good information on, data sheets, and music with these cool IC's

http://www.srcf.ucam.org/~rga24/computer/music/

http://bulba.at.kz/main_e.htm

I also have a bunch, 25, of the SN76489 chips also. It's close to the AY series minus the ENV GEN, 8 bit ports, and has only 10-Bit tuning resolution (the AY's have 12 bits and thus can be more "musical". The noise generator is slightly different also.

So how about a bit of chat about these chips Very Happy

Bill

synth_ollie · Joined: Sep 11, 2006 Posts: 149 Location: sweden

I had a soundgenerator for zx spectrum once that was based around one of those AY-3-89xx chips....

cheers

OLLIE

v-un-v · Posted: Mon Jan 08, 2007 2:54 pm Post subject:

oooh- that could be a little close to the bone. After initially hearing the SN7 then the SID, the AY was a real disappointment to me. I remember it being embedded within the BBC Micro (which was shit anyway! hehe ). I remember trying one sunny afternoon trying to get it to make anything interesting!!

However, I do seem to remember that it responds well to circuit bending and can also hake some fairly groovy Human League like zaps Cool

So don't let me stop you fiddling Very Happy

Perhaps a project could be championed that involves lots of banana sockets and weird inputs- not far off something looking like a Tandy/Radioshack 100 in 1 projects kit? Idea