A midi theremin ! Cv-to - MIDI or ADC - MIDI ?

bhuddahat · 29th January 2007, 02:20 PM

Hello all ,

I`m new to this whole diy audio thing.

But i have been buildignelectronic for years.

I am in the process of building a Theremin and was thinking about converting it so that it will output MIdi messages as well as audio .

My reasoning for this is that the theremin has an really tactile user interface that i think will klend itself to the control of other parameters especially effects units .

My main problem is not the construction of the actual theremin , but the conversion of the output to a digital signal and then in to midi messages .

My knowledge of MIDI programming is ok but i know next to nothing og converting a analogue audio signal into a digital one .

I presume i will need some sort of CV to midi chip , But i could really do with some help.

Has anybody done something similar .

Regards chris

Nigel Goodwin · 29th January 2007, 03:17 PM

I would suggest using a PIC, you could use it to measure a number of analogue inputs, and output midi data accordingly. You would need to program it yourself though, and decide what midi commands are send for what voltages.

There are various PIC Midi projects on the net, it might be worth having a google?.

Foxx510 · 1st February 2007, 11:03 PM

You can buy a kit, though I think you want to do it yourself. Details are here

29th January 2007, 02:20 PM	#1
bhuddahat diyAudio Member Join Date: Oct 2005	A midi theremin ! Cv-to - MIDI or ADC - MIDI ? Hello all , I`m new to this whole diy audio thing. But i have been buildignelectronic for years. I am in the process of building a Theremin and was thinking about converting it so that it will output MIdi messages as well as audio . My reasoning for this is that the theremin has an really tactile user interface that i think will klend itself to the control of other parameters especially effects units . My main problem is not the construction of the actual theremin , but the conversion of the output to a digital signal and then in to midi messages . My knowledge of MIDI programming is ok but i know next to nothing og converting a analogue audio signal into a digital one . I presume i will need some sort of CV to midi chip , But i could really do with some help. Has anybody done something similar . Regards chris

29th January 2007, 03:17 PM	#2
Nigel Goodwin diyAudio Member Join Date: Jul 2005 Location: North Derbyshire	I would suggest using a PIC, you could use it to measure a number of analogue inputs, and output midi data accordingly. You would need to program it yourself though, and decide what midi commands are send for what voltages. There are various PIC Midi projects on the net, it might be worth having a google?. __________________ Nigel Goodwin

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1st February 2007, 11:03 PM	#3
Foxx510 diyAudio Member Join Date: Nov 2006	You can buy a kit, though I think you want to do it yourself. Details are here

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