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Posted by Eibert Draisma on July 25, 2005, 12:29 pm
Hi Matthew and Virginner,
Hmm, right; midi is not a wave form! Sorry!
I already contacted Dr.Godfried-Willem RAES, LOGOS FOUNDATION, Center for
Experimental Music Production; he's a real expert concerning midi controlled
instruments.
Take a look at his site: http://logosfoundation.org/
However, I am looking for a really simple approach.
This is my first experience with midi, therefor I am trying to keep things
simple.
****************
I also thought about using DTMF tones to do the job:
My goal is to find a solution as simple as possible to drive the
castagnettes.
1) Use a MP3 player to store a "song" consisting out of differtent DTMF
tones
2) Use a simple DTMF receiver connected to the MP3 player to detect the DTMF
tones
(e.g. MT8870D / MT8870D-1 Integrated DTMF receiver)
3) Use simple electronics connected to the DTMF receiver to drive 16
solenoids.
(Solenoids: 12VDC)
Note:
- I would to drive one solenoid at a time; I can imagine driving more
solenoids (each related to a specific DTMF tone) simultaneously would result
in problems concerning the decoding?
- The solenoids should only be "on" when their DTMF tone pairs are hot; I
simply would record a "DTMF-tones song" and store it on a MP3 player.
******************
I would be very pleased to hear your comments!
Eibert Draisma.
> >| Dear All,
> >|
> >| I am new to midi as well as to this group so forgive me in case
> >| of "stupid" questions...
> >|
> >| I am looking for software/hardware to control 16 solenoids using midi.
> >| In fact I am building an instrument consisting of 16 automated
> >| castagnettes.
> >|
> >| My goal is to find a solution as simple as possible to drive the
> >| castagnettes.
> >|
> >| My basic idea is:
> >| 1) Use a MP3 player to store different (rhytmic) midi files
> >| 2) Use a simple 16 channel interface/electronics (connected to the
> >| MP3 player) to drive 16 solenoids.
> >|
> >1) How are you going to store MIDIs on an MP3 player, and have them play
> >back? MIDI is not a waveform (but you knew that didn't you...)
> >2) Have a look here:
http://www2.netdoor.com/~rlang/xylotron/xylotron.htm -
> >this is a MIDI controlled Xylophone, and will give you an idea.
> >D.
> This is actually a MIDI-controlled glockenspiel, mis-named "xylophone"
though
> the bars are not made of Xylos (wood). But the idea is the same.
> --
> Matthew H. Fields http://www.umich.edu/~fields
> Music: Splendor in Sound
> To be great, do better and better. Don't wait for talent: no such thing.
> Brights have a naturalistic world-view. http://www.the-brights.net/
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>|
>| I am new to midi as well as to this group so forgive me in case
>| of "stupid" questions...
>|
>| I am looking for software/hardware to control 16 solenoids using midi.
>| In fact I am building an instrument consisting of 16 automated
>| castagnettes.
>|
>| My goal is to find a solution as simple as possible to drive the
>| castagnettes.
>|
>| My basic idea is:
>| 1) Use a MP3 player to store different (rhytmic) midi files
>| 2) Use a simple 16 channel interface/electronics (connected to the
>| MP3 player) to drive 16 solenoids.
>|
>1) How are you going to store MIDIs on an MP3 player, and have them play
>back? MIDI is not a waveform (but you knew that didn't you...)
>2) Have a look here: http://www2.netdoor.com/~rlang/xylotron/xylotron.htm -
>this is a MIDI controlled Xylophone, and will give you an idea.
>D.