[sdiy] Low-Key transpose on a MIDI2CV interface..

[Andre Majorel]

On 2012-02-05 15:25 -0500, Jean-Pierre Desrochers wrote:
> 
> PAIA midi2cv8 user's guide stipulates the following:
> Most 61 keys digital keyboards assign the midi note number #36
> to their lowest 'C' key..
> So that means 3 octaves higher than the lowest MIDI note number #0.
> That would give 3.00vdc on the CV output for the first left C
> note (number#36).. PAIA has a way to drop to 0.00vdc the first
> C note of MIDI keyboards..
> 
> Did anybody acknowledge the MIDI note#36 for the first C key
> of most 61 keys digital keyboards ? 

Without transposition, i.e. on the 8' stop, the middle A of a
keyboard is supposed to play at 440 Hz. So it must be MIDI note
69. If it's a five-octave keyboard, the low C must be therefore
be MIDI note 36.

-- 
André Majorel http://www.teaser.fr/~amajorel/