Technics SX-F100 Owner's Manual page 145

Part IX
MIDI channels
Many different kinds of performance data are
sent using just one MIDI cable . This is possible
because MIDI signals are sent and received
through 16 different "basic channels" (numbered
1 to 16) . In order for the exchange of data to take
place , the channels on the transmiss ion side
must match the channels on the receiving side.
Th is characte ristic also makes it possible to link
multiple sound generators and to control each
by matching specific channels .
MIDI
The
~ollowing
kinds
ol
data can be transmitted/received.
11
Note data
This is the most basic kind of MIDI data which
is exchanged , and is used to specify which keys
are played and how hard they are played .
Note number: Number specifying which key is
Note on:
Note off:
Velocity:
played .
Specifies that a key is played .
Specifies that a key is released .
Specifies how hard a key is struck .
• MIDI notes are assigned numbers from 0 to
127 , with middle C (C3) as 60 . Note pitches
are in semitone increments , with the higher
numbers assigned to the higher pitches .
GENERAL MIDI
GENERAL MIDI (GM) is the standard which
enables M I Dl data exchange between different
models or equipment of different manufacture .
Program change numbers and their correspond-
ing sounds , percussion instrument sounds , note
numbers, etc . are data-compatible between
equipment using this standard .
Song data created on the equipment of one
manufactu rer can be played back on the equip-
ment of a different manufacturer, as long as both
conform to the GENERAL MIDI standard .
143
11
Program change
This is sound change data . When a different
sound is selected on the transmitting instrument,
the sound on the receiving instrument also
changes.
111
Control change
These are volume , sustain , effect , etc . data used
to enhance performance expression . Each func-
tion is distinguished by its control number, and
the function which can be changed by the control
differs depending on the instrument.
This instrument conforms to this standard and
can be used as a GENERAL MIDI sound gener-
ator.
Equipment which conforms to GENERAL MIDI
standards is indicated by the following logo .
GENERAL
mliJI