midi and piezos
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Posted on May 04, 2006 01:28 pm
aongodavo
Member Since: Jan 21, 2003
ok so this is strictly recording but i was wondering if anyone could help me with my college project!?
basically im wondering if piezos respond to human voice? so if i spoke into a piezo connected to a midi controller in turn connected to a pc some reaction would occur?
any help would be greatly appreciated
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May 04, 2006 02:09 pm i'm gonna say nope....a piezo mic responds to any physical vibration of what ever it's touching...like a wall or something...that will definately pick up a voice or any other 'real' sound....midi, however, is very simple binary data, a midi controller does not generate any sound at all, think of it as the roll of paper with a bunch of holes in it, on those old school player pianos, all it does is tell the sound generator what and when to play, and how long to play it....so yeah a mic of any kinda and midi controller are apples and oranges.....you could play a midi controller and have it trigger your voice (sampled).....also midi connectors/cables are way different then mic connectors/cables.
hope that helps
wyd
May 04, 2006 02:20 pm yeah i see what your saying, what if i had the piezo acting like the controller? when it reacts that creates the midi data
May 04, 2006 03:22 pm from what i understand, any type of 'audio to midi converter' is done after it's recorded...you'd need a special program for it...there's a few out there, but the ones i've tried absolutely suck. say you feed it a vocal track, it will get the pitch and time close but not the accual words or whatever.
May 04, 2006 04:08 pm yeah i dont really need the words to come through just need it to make a coneection so i know that the computer can respond to human voice in some form, thanks for your help
May 04, 2006 04:12 pm hmm i guess an "audio to midi converter" program might be the ticket for ya.....google it or check download.com...
good luck
Noize2uCzar of MidiAdministrator
Since: Apr 04, 2002
May 04, 2006 07:36 pm WYD has it pretty much right on. You will first need a converter to turn the audio into and impulse that will then be converted into midi by another piece of hardware. Which inturn will record as midi note data. But it will be extremely random stuff, so it really wont be muc good musically.
May 04, 2006 07:53 pm hmm, I know of MIDI guitars which use pickups that convert to MIDI. I wonder if there are indeed extensions of this using audio to MIDI.
Noize2uCzar of MidiAdministrator
Since: Apr 04, 2002
May 04, 2006 08:26 pm Yes there are some pieces of gear out there taht will do it. I cant seem to find what I am looking for at the moment. But they basically work on the saem principal as the hex pickups in the midi guitar set up. It converts the audio pusles into midi note data. But as I stated it would probably be something that would need some intense fine tuning to make it work with the piezo set up.
May 04, 2006 11:16 pm Drum trigger/midi converters could do it, if all you're trying to do is get a midi event to happen. Alesis d44's can even take use mikes or output from a recorder to trigger an event - that's was the old trick for replacing drum sounds before computers could do it automatically. I'm guessing you'd have to hit a piezo pretty hard with your voice to get a good signal, though.
May 04, 2006 11:18 pm I would use a mic, and monitor a track with an auto tune plug in with settings at 100%. By having a definite pitch you might be able to convert it to MIDI data more easily?
Still thinking on how to convert....
RigsbyUltra MagnusMember
Since: Nov 13, 2004
May 05, 2006 02:48 am "it will be extremely random stuff, so it really wont be muc good musically."
sounds perfect to me!
zekthedeadcowEat Spam before it eats YOU!!!Member
Since: May 11, 2002
May 05, 2006 08:35 am Drumagog might work :)
Noize2uCzar of MidiAdministrator
Since: Apr 04, 2002
May 05, 2006 07:39 pm What he is trying to do is do a pitch to midi conversion. Indeed the piezo can trigger said midi note each time it is sent through a converter. But it wont know what note is coming through. It will take a combination of hardware and software to do the pitch to midi thing.
Rigsby, you should hunt for an old program called Randomizer. It would generate random midi note and velocity data in a variety of ways. I think there are others out there now, but I havent looked for anything like that in years.
There is also one that will look over a .jpg or .gif and convert that to sound. It is a synth type thing, cant remember what it is called right now though.
