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To derive the midway value of the internal data, the following calculation is used (MIDI midway value = 64).
First, 128 (the maximum value used in MIDI) is divided by the internal Data Value (Panpot = 33) to obtain the
MIDI data number equivalent to one internal data number. The internal Data Values for all parameters are given
in the Control Change to Parameter Assignment tables.
ex. Panpot: 128 / 33 = 3...29
To express the midway value of the internal data using the MIDI midway value (64), the remainder obtained
from the above calculation is added to both sides of the MIDI range. If there is another remainder, "1" is added
to the result.
ex. Panpot: 29 / 2 = 14...1 14 + 1 = 15
Therefore, when MIDI data is x, the internal data is calculated using the following formula:
ex. Panpot: INTEGER ((x - 15) / 3)
If the resultant value is below 0, it becomes the minimum internal data value.
If the resultant value exceeds the maximum internal data value, it becomes the maximum internal data value.
For data that consists of two bytes (Effect Parameter), 16,384 (14-bit value) is used instead of "128" (Minimum:
0000h, Maximum: 3fffh).
Usually, Control Change messages are output only when the internal data is changed. Incoming messages are
processed so that they do not contradict the internal data (i.e. abnormal settings that are not acceptable to Pro-
grammable Mixer 01). However, the following are exceptions:
If the status of a stereo pair is changed, a Stereo Pair Flag Control Change is output, then the Control Change
of the changed parameter is output. When Programmable Mixer 01 receives a Stereo Pair Flag Control Change,
only the flag is changed. When the information about channels for a stereo pair is received afterward, the param-
eter of the other receive channel is also changed. Also, at the moment of operation, the parameters for both chan-
nels are changed. Therefore, the Control Change that has the same function as the pair processing on the unit
is assigned to the other number. The parameters labelled "Execute" or "Ex." can prevent contradiction occurring
when the message is received. Also, when the unit receives the Control Change message of this number, the
parameter changed by this message will, in turn, output a control change message.
The above also applies to SEND3, 4 Configuration.
When a Control Change message to change the level of a channel in a group is received, the other channels are
not affected. The group is temporarily released, the fader adjusted, then grouping is reactivated.
2-3 System Exclusive Message
Transmission Channel number (Tx Channel No.) is used for transmission. Messages are received only when the
receive Channel number (Rx Channel No.) matches, or when OMNI is set to ON.
The Programmable Mixer 01 transmits and receives scene memory contents, Program Change Assignment
Table, Control Change Assignment Table, Edit Buffer contents, Setup Memory contents, Backup Memory con-
tents, Key Remote Message, Effect User Memory contents, Compressor User Memory contents, and EQ User
Library contents.
2-4 Real Time Message
Only Active Sensing (FEh), and MIDI Reset (FFh) are received. Running Status is cleared if the unit dose not
receive any data for more than 300 ms after receiving Active Sensing, or when MIDI Reset is received.
Programmable Mixer 01 User's Guide
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