RMS.G.HNIJ%MIT-OZ@MIT-MC.ARPA (01/18/84)
From: John S. Labovitz <RMS.G.HNIJ%MIT-OZ@MIT-MC.ARPA> I am thinking of building an interface for my computer (Heathkit H89) to support some music chips. I would like to know of any chips (not necessarily for the Z80) that produce >1 voice, have envelope generators, oscillaters, etc. Thank you. I will summarize for the net, if replies are received. John Labovitz HNIJ@MIT-ML.ARPA -------
SHahn@SUMEX-AIM.ARPA (01/19/84)
From: Sam Hahn <SHahn@SUMEX-AIM.ARPA> First suggestion: popular choice is the General Instruments 8910 chip. -------
hsiung@uiucdcs.UUCP (hsiung ) (02/01/84)
#R:sri-arpa:-1567500:uiucdcs:10400105:000:396
uiucdcs!hsiung Jan 31 17:35:00 1984
In the july '82 issue of byte there is an article for a music interface
with an apple or trs-80. It uses the TI 76489A. I'm having trouble locating
a source for the chip so if you get any information on the chip I would
greatly appreciate a reply. If you also get any design's for the 8910
I would also be interested in them.
Harry Hsiung
...!{parsec,pur-ee,ihnp4}!uiucds!hsiungGUBBINS@RADC-TOPS20.ARPA (02/03/84)
From: Gern <GUBBINS@RADC-TOPS20.ARPA> I have just completed my deign and implementation of a 3 voice programmable sound generator/Atari joysticks/home control/burglar system using the GI 3-8910 you mention. it is an 11 IC design for a S-100 bus and I will be slowly gearing up for production in limited quanity. It is for my Zenith Z-100. I have had it working for a week now, and I programmed it to play the theme to Star Wars from a direct encoding of the sheet music. I hacked the Star Wars data in and a <30 line driver program (BASIC) in last night. It sounds unbelieveably fantastic!! Sorry, but I an not releasing my design (I worked 4 months on it and it is Version 5.6). I recall that a complete design for the TRS-80 (sound only - no joysticks or control features) was in 80 Micro TRS-80 magazine MAY 82. I flagged myself a note to get hold of this article, but I never did. It is a completely different design approach than my own, judging from a quick glance at it. The 8910 is the way to go, but that is my opinion and a lot of people like the TI 76489A. Cheers, Gern -------
ejk47@ihuxn.UUCP (Ed Kufeldt, ihuxn ejk47) (02/03/84)
You might try your local Radio Shack. The one by me
has your TI chip.
Ed Kufeldt
:~}