ebay Altair Music Record

From: Allison J Parent <allisonp_at_world.std.com>
Date: Mon Dec 7 18:55:48 1998

< Now *MY* Altair Synth (pardon the ego!) was all done in
< software, with a simple 8-bit d/a converter on an i/o
< port. It used 256 bytes of a waveform (fundamental sin(x)
< plus some harmonics) that were stepped thru by up to

there was a simplfied version by processor tech and a few others with
a less sophisticated D/A (used R, 2R ladders) that were able to do that.

The whole of it is Malcom Wright's _Alphanumeric music with Amplitude
control_ C1975 article. I have a copy of this and have done mucic with
it and voicing was possible.

Allison
Received on Mon Dec 07 1998 - 18:55:48 GMT