10. MIDI applications
65
STEP 3
Adjusting the tone color
When a MIDI Brightness message [Bn, 4A, vv] (control change #74: ‘vv’ = value) is received, the
tone color will change. For a ‘vv’ value of 64 [40H], there will be no change in the tone. For lower
values the sound will become darker, and for higher values the sound will become brighter (if a
low pass filter is being used).
Since this message edits the cutoff frequency parameter of filters 1A, 1B, 2A, and 2B (in the same
way as Filter Freq in Performance Edit), you can use the Write operation to save the edited sound
into internal memory. (The Write operation can be performed using the panel keys of the TRIN-
ITY, or by using the exclusive message Program Write Request.
Since this message has come into use only recently, it may not be implemented on some models of
MIDI synthesizers.
Adjusting the attack time
When a MIDI Attack Time message [Bn, 49, vv] (control change #73: ‘vv’ = value) is received, the
attack time will change. For a value of 64 [40H] there will be no change in the attack time. For
lower values the attack will become faster, and for higher values the attack will become slower.
(However, if the attack time has been set to any value other than 0, sometimes attack may not be
applied.
Since this message edits the attack times of the two Amp EGs (in the same way as Attack Time in
Performance Edit), you can use the Write operation to save the edited sound into internal memory.
Since this message has come into use only recently, it may not be implemented on some models of
MIDI synthesizers.
Adjusting the release time
When a MIDI Release Time message [Bn, 48, vv] (control change #72: ‘vv’ = value) is received, the
release time will change. For a value of 64 [40H] there will be no change in the release time. For
lower values the release will become faster, and for higher values the release will become slower.
Since this message edits the release times of the two Filter EGs and the two Amp EGs (in the same
way as Release Time in Performance Edit), you can use the Write operation to save the edited
sound into internal memory.
Since this message has come into use only recently, it may not be implemented on some models of
MIDI synthesizers.
Editing with RPN messages
RPN (Registered Parameter Number) messages allow settings to be made in the same way for
instruments of different manufacturers. (NRPN (Non-registered Parameter Number) messages
and exclusive messages can be freely used by each instrument manufacturer.)
Editing procedure is as follows.
1 Use RPN (LSB) [Bn, 64, rr] and RPN (MSB) [Bn, 65, mm] messages (control changes #100 and #101:
‘rr’, ‘mm’ = parameter number lower and upper bytes) to specify the parameter.
2 Use Data Entry (MSB) [Bn, 06, mm] and Data Entry (LSB) messages [Bn, 26, vv] (control changes #06
and #38) to specify the value. (‘mm’ and ‘vv’ are the upper and lower bytes, allowing a total of
16384 steps.)
3 You can also use Data Increment [Bn, 60, 00] (control change #96: value fixed at 00) and Data Dec-
rement [Bn, 61, 00] (control change #97: value fixed at 00) messages to increase or decrease the
value in steps of 1.
The TRINITY series receives three types of RPN; tuning, transpose, and changing the pitch bend
range.
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