[sdiy] Digital keyboard interface

[Philippe Derenne]

Hi Karl,

If German is not a (big) problem for you, have a look there :
http://omega.tellus.vallentuna.se/anders/synthar.html
and choose "Elektor Formant part 2 chapter 1" : there is a digital
keyboard schematic (page 18 for the trigger and gate, page 19 for the
DAC converter).

Hope this will help...

Phil.

----- Original Message -----
From: "Karl Ekdahl" <_nial_ at yahoo.com>
To: <synth-diy at dropmix.xs4all.nl>
Sent: Monday, August 19, 2002 11:48 PM
Subject: [sdiy] Digital keyboard interface


| Hi all, i'm trying to build a digital keyboard
| interface using a mc1408 d/a converter but i can't
| even get the damn chip to respond (i'm a beginner at
| analogue techniques but i know digital). Has anyone
| any experience of these chips and/or making digital
| keyboard interfaces?
|
| This is a 8-bit d/a, i was thinking of dropping the
| least significant bit thus getting 10 octaves + 8 keys
| to play with. I thought of using a tranciever and a
| short "decay" to prevent several keys from being
| depressed at the same time.
|
| thanks
|
| Karl Ekdahl
|
| _____________________________________________________
| Gratis e-mail resten av livet på www.yahoo.se/mail
| Busenkelt!
|