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Audiopedia 109 MIDI from Ask Audio


AudioPedia 109: MIDI

Ask Audio's AudioPedia series is a comprehensive video dictionary of audio terminology. Created by audio expert Joe Albano, this encyclopedia of technical terms is the ultimate audio reference tool. Here are the topics covered and defined in the ninth installment of this authoritative series:


  • MIDI | Musical Instrument Digital Interface (preview below)
  • DIN (Cable) | USB (MIDI)
  • MIDI In | Out | Thru
  • Channel Voice Messages (preview below)
  • Velocity (preview below)
  • Pitch Bend
  • Aftertouch | Pressure
  • Control Change | CC
  • System Exclusive | SysEx

MIDI - Operation | Applications:

  • Quantization (MIDI)
  • Sound (Drum) Replacement
  • MIDI Controller
  • Touch | Velocity Sensitivity
  • Weighted | Unweighted Keyboard
  • Keyboard Split | Layering
  • Alternative MIDI Controller
  • MIDI Drum Kit
  • General MIDI | GM | SMF
  • MIDI Sequencer | Step Sequencer
  • Arpeggiation, Arpeggiator

Almost everyone who works with music encounters MIDI at some point, and many people use it every day. But aside from plugging in your USB keyboard, how much do you really know about what MIDI is and how it works? In the course AudioPedia 109: MIDI, Joe Albano gets to the heart of the MIDI protocol and explains it in a way that's friendly and enlightening.

by Ask Audio

MIDI Channel messages


There are 7 MIDI channel voice messages.

  • Note on
  • Note Off 
  • Mono Pressure 
  • Poly Pressure
  • Program Change 
  • Pitch Bend 
  • Control Change 



Velocity is the force with which a note is played, and essential to making MIDI expressive. 


AudioPedia Course: MIDI by Joe Albano : AskVideo

The NLE AudioPedia series, our video-based audio encyclopedia, is an invaluable resource for sound engineers, musicians, students, educators and all audio enthusiasts. This ninth installment is about MIDI terminology.
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