292 Audio Effects: Theory, Implementation and Application
and instead we just have tracks and mixer strips. These mixer strips operate
similarly to the channel strips on a console. A new track in a sequence win-
dow results in a new mixer strip in the mixer window.
However, our tracks need not be audio signals. Instead, they could repre-
sent Musical Instrument Digital Interface (MIDI) data, which behave like an
audio track but are converted to a digital audio signal by a virtual instru-
ment only at a later stage, as explained below.
MIDI and Sequencers
Musical Instrument Digital Interface is an industry standard electronic com-
munications protocol that precisely denes each musical note performed
on or by a digital musical instrument, thus al