Midi - Yamaha PortaTone PSR-1700 Owner's Manual

MIDI

MIDI, the Musical Instrument Digital Interface, is a world-standard communication interface that
allows MIDI-compatible musical instruments and equipment to share musical information and
control one another. This makes it possible to create "systems" of MIDI instruments and equip-
ment that offer far greater versatility and control than is available with isolated instruments.
The MIDI Connectors ..............................................................................................................................
MIDI
THRU OUT
Simple MIDI Control ................................................................................................................................
Tone Generator
MIDI IN
MIDI OUT
PSR-1700/2700
MIDI Keyboard
MIDI OUT
MIDI IN
PSR-1700/2700
MIDI Sequence Recording ......................................................................................................................
Sequencer
MIDI IN
MIDI OUT
PSR-1700/2700
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The MIDI IN connector receives MIDI data from an external MIDI de-
IN
vice which can be used to control the PSR-1700 or PSR-2700. The MIDI
THRU connector re-transmits data received at the MIDI IN connector, al-
lowing "chaining" of several MIDI devices. The MIDI OUT connector
transmits MIDI data generated by the PSR-1700 or PSR-2700 (e.g. note and
velocity data produced by playing the keyboard).
Most MIDI keyboards transmit note and velocity (touch response) infor-
mation via the MIDI OUT connector whenever a note is played on the key-
board. If the MIDI OUT connector is connected to the MIDI IN connector
of a second keyboard (synthesizer, etc.) or a tone generator (essentially a
synthesizer with no keyboard), the second keyboard or tone generator will
respond precisely to notes played on the original transmitting keyboard.
The result is that you can effectively play two instruments at once,
providing thick multi-instrument sounds. The PSR-1700 and PSR-2700 also
transmit "program change" data when one of its voices is selected. Depend-
ing on how the receiving device is set up, the corresponding voice will be
automatically selected on the receiving keyboard or tone generator
whenever a voice is selected on the PSR-1700 or PSR-2700.
The PSR-1700 and PSR-2700 are capable of receiving the same MIDI
data, so a second MIDI keyboard connected to the PSR-1700 or PSR-2700
MIDI IN connector can be used to remotely play the instrument and select
voices as required.
Although the PSR-1700 and PSR-2700 feature a built-in "sequencer"
(the Song Memory is a type of sequencer), the same type of musical infor-
mation transfer described above can be used for more sophisticated MIDI
sequence recording using an external sequencer or music computer. A MIDI
sequence recorder or music computer can be used to "record" MIDI data
received from a PSR-1700 or PSR-2700, for example. When the recorded
data is played back, the PSR-1700 or PSR-2700 automatically "plays" the
recorded performance in precise detail.
NOTES
MIDI
RECEIVE TRANSMIT
CH/CL/COM
L
MODE
................
0 RX OFF
1 MULTI
2 REMOTE
3 CHORD
4 ROOT
MIDI OUT
• Never use MIDI cables longer than about 15 meters, since cables
longer than this can pick up noise which can cause data errors.
CH
R
LOCAL
MIDI
OUT
LOCAL /
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