IBM ThinkPad 760C, Service Manual

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Information for Mwave DSP Features
Other MIDI Controls
The Mwave feature's MIDI synthesizer recognizes several types of
control information in the MIDI data stream:
Key velocity The harder the key is pressed, the louder the note
sounds.
Main volume This is usually controlled by a knob on a MIDI
keyboard. It is received on control number 7.
Pitch bend This can be used to mimic the sound of a whammy
bar on a guitar and is usually controlled by a thumb
wheel on a MIDI keyboard. Note pitch can be varied
(
+−
)2 semitones.
Pan The Mwave feature's MIDI synthesizer uses QSound
to implement pan. By using QSound, the position of
each channel's instrument is not limited by the
position of the speakers. It is received on control
number 10.
Vibrato Also referred to as modulation, this control produces
rapid, small changes in the pitch of a note and is
usually controlled by a thumb wheel on a MIDI
keyboard. Vibrato depth can be varied (
+−
)2
semitones. It is received on control number 1.
Sustain Each note of an instrument has an envelope that
describes the loudness of the note during attack,
decay, sustain, and release periods. Some MIDI
keyboards can be used with a pianolike sustain pedal
that prolongs the sustain period to mimic holding a
note. It is received on control number 64.
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IBM ThinkPad 760C User's Guide