RE: [Harp-L] Harmonica to Midi
- To: <rob-t@xxxxxxxxxxxx>, <harp-l@xxxxxxxxxx>
- Subject: RE: [Harp-L] Harmonica to Midi
- From: JersiMuse <jersimuse@xxxxxxxxx>
- Date: Fri, 2 Dec 2011 17:50:34 +0100
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It seems to be very interesting to me !
I hope we'll have the chance to see & hear a prototype soon !
Courage, best wishes for the next steps,
De : harp-l-bounces@xxxxxxxxxx [mailto:harp-l-bounces@xxxxxxxxxx] De la part
de Robert Townshend
Envoyé : vendredi 2 décembre 2011 17:42
À : harp-l@xxxxxxxxxx
Objet : [Harp-L] Harmonica to Midi
I have been working on a harmonica-style MIDI polyphonic breath controller
for a few years, with some false starts, but now I have all the building
blocks to make and program a prototype.
This year my health has smacked me backwards and I also had the
disappointment that my ideas were not patentable. So I am going the open
So far, I have an array of 16 medical breath sensors and a multiplexing
circuit that feeds a signal conditioning amplifier. This takes the
millivolts of output from the sensor and converts it to 2.5 volts, which
goes down to 1 volt on full draw and up to 4.5v on full blow. Now 'all' I
have to do is input this into a microcomputer and convert it to MIDI. Sounds
simple enough don't it?
My current stumbling block is the Arduino I am using as the processor causes
my PC to freeze or corrupts Windows every time I try to load a driver to
communicate with it. Once I sort this out I need to start programming. The
(free) development environment uses C++.
It is on its way, but don't hold your breath. I have yet to prove the
principles and then get a playable prototype. I am not aiming for an
electronic blues harp, as I am (now) more of a chromatic player. I do
intend to put controls on the instrument to slide (semitone shift) in either
direction, bend notes up or down, transpose pitch and octave etc and a few
other MIDI essentials (panic button and patch and channel changes).
Well that's the state of play. I have had a stupidly negative response from
some harp players, but I am not trying to deny bluesmen the smell of bent
reeds. This project is to make something that I want and if anyone else has
an interest then I am happy.
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