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You are here: MacNN Forums > Our Archives > General Archives > Digital Video & Audio Archives > How Does MIDI Recording Work?

 
How Does MIDI Recording Work?
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Professional Poster
Join Date: Apr 2002
Location: New York City
Status: Offline
Feb 28, 2003, 01:38 AM
 
I just bought ProTools 6 and I'm trying to get it working with my Alesis QS 8. Specifically I want to record audio from the keyboard to my project and have it quantized. I haven't had any problem getting it to record through the MBox's "line in" nor have I had any trouble getting the app to respond to key tapping (the audio level bar on the track jumps). What I'm starting to suspect is that MIDI doesn't transfer any information relating to the "voice" that I have selected in the keyboard and that ProTools needs a copy of the same sound libraries online to get this thing recording. I haven't got much experience with MIDI so go easy on me
     
tr
Mac Elite
Join Date: Nov 1999
Location: Columbus, Ohio
Status: Offline
Feb 28, 2003, 09:41 AM
 
it's okay if you're a novice, MIDI is strange thing to get around, especially if you're old school, used to straight multitracking.

i'm not sure if this is what you are doing, but from your post, it seems like you're recording from your Alesis by plugging the out from the keyboard into the 'in' of the MBox, correct? if that's the case, you are NOT recording MIDI data. remember that MIDI does not record sounds, it just records note messages. and from the looks of your setup, and looking at the MBox specs, you don't have your keyboard hooked up via MIDI (i.e. the MIDI out on your QS goes into the MIDI in of your computer).

in order to record MIDI, you'll have to get a MIDI interface. i'm using a midiman USB midisport 2x2 . it's a pretty good box, 2 in's, 2 outs, good X drivers, you can find it for like $60. i was kinda surprised that the Mbox doesn't have MIDI, thought it did.

anyway, so to record MIDI from your keyboard, you connect the MIDI out from the keyboard to the MIDI in of the computer, and while your at it, you can do the out from the computer to the MIDI in of your keyboard. now, record like you were doing, but instead, create and record to a MIDI track. in the track, you won't see a soundwave being recorded, but instead little squares or rectangles in a grid, which correspond to the notes which your pressed on your keyboard. now, when you play back that track, the MIDI data that you recorded is sent from the out of the computer to the in of your keyboard, and you should hear exactly what you played from the keyboard's audio outs.

but since this is MIDI data, and not actual audio, you can now go into the track, and change the patch or voice of the keyboard to anything you want. and you can quantize the MIDI data, fix notes that are off, etc. you are not manipulating audio, but are manipulating the messages that will control audio.

i think if you get a MIDI USB interface with your QS connected, and set it up using Audio MIDI setup found in Apps-->Utilities, you should be good to go.


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Axo1ot1  (op)
Professional Poster
Join Date: Apr 2002
Location: New York City
Status: Offline
Feb 28, 2003, 11:40 AM
 
It is set up with a 2X2 midisport, actually . My problem was that I was only going out from the keyboars, theres no cable going back into it
     
 
   
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