Teac US-428 - Manual (Page 74)

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Host to US-428 Messages:
Note: In these messages, <STRIP #>is a number in the range [0..7], corresponding to the
channel-strip #, and <STATE>is either 0x00 (LED OFF) or 0x7F (LED ON) . Transmit<UNIT> as
0 for now.
1. UPDATE_MUTE_LED: F0 4E<UNIT>12 02<STRIP #> <STATE> F7
2. UPDATE_SEL_LED: F0 4E<UNIT> 12 03<STRIP #> <STATE> F7
3. UPDATE_REC_LED: F0 4E<UNIT> 12 04<STRIP #> <STATE>F7
4. UPDATE_NULL_LED: F0 4E<UNIT> 12 05 <STATE> F7
5. UPDATE_SOLOMODE_LED: F0 4E<UNIT> 12 06 <STATE> F7
Note: following message forces US-428 to send current fader position messages to host via the
Us-428 Control Port
6. DUMP_FADER_POS: F0 4E<UNIT>12 10 <STRIP #> <STATE>F7
Bank-Switching Command Set
The US-428 has two switches that allow the user to select the bank of application channels that is
addressed by the eight channel-strips. For example, an application with 32 virtual tracks would
define 4 banks of eight channel strips each. The Bank-L and Bank-R switches let the user quickly
shift the control surface to address any bank of eight channels. There are two LED's adjacent to
the Bank-L and Bank-R switches, which indicate that pressing the button will cause the
application software to switch to the next lower or higher bank, respectively. It is OFF when there
are no further virtual fader banks available in that direction.
US-428 to Host Commands
• BANK_LEFT:
o Button-down: BF 10 7F
o Button-up: BF 10 00
• BANK_RIGHT:
o Button-down: BF 11 7F
o Button-up: BF 11 00
Host to US-428 Messages:
1. UPDATE_BANK_LEFT_LED: F0 4E<UNIT> 12 07<STATE> F7
2. UPDATE_BANK_RIGHT_LED: F0 4E<UNIT> 12 08<STATE> F7
where<STATE> is either 0x00 (LED OFF) or 0x7F (LED ON) <UNIT>is device ID. Should be
transmitted as 0 for now.
EQ Knobs and Band Selection Command Set
Three continuous-turn rotary encoders allow the user to set the Gain, Frequency, and Bandwidth
of a band of parametric EQ. The controller numbers used are the same as the JL Cooper CS-10,
however instead of an absolute 0..7F value, the increment/decrement of the encoder is
transmitted. The application must understand when the logical limit of the EQ control has been
reached, and provide on-screen feedback to let the user know that he is at the minimum or