247 lines
6.3 KiB
Plaintext
247 lines
6.3 KiB
Plaintext
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# Mackie emulation for the AKAI APCmini
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# Copyright (c) 2018 Albert Graef <aggraef@gmail.com>
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# Copying and distribution of this file, with or without modification, are
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# permitted in any medium without royalty provided the copyright notice and
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# this notice are preserved. This file is offered as-is, without any
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# warranty.
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JACK_NAME "midizap-APCmini"
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JACK_PORTS 2
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# This turns the APCmini into a Mackie-compatible controller, so that it can
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# be used with Linux DAW programs like Ardour. The emulation is complicated by
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# the APCmini having no encoders, no motorized faders, and not nearly as many
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# dedicated buttons as a Mackie device. But it offers enough controls to be
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# usable as a basic DAW controller. I tested it with Ardour.
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# SETUP: In Ardour, enable the Mackie control surface, then connect Ardour's
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# "mackie control" ports to midizap's midi_out and midi_in2 ports, and the
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# APCmini to midizap's midi_in and midi_out2 ports.
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# PROTOCOL DOCUMENTATION: The Mackie protocol is fairly ubiquitous, but since
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# the manufacturers can't be bothered to properly *document* their stuff these
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# days, we have to rely on volunteers who do their work using some reverse
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# engineering. Here are the links that I found most useful:
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# http://www.budgetfeatures.com/XctlDOC/Xctl Protocol for X-Touch V1.0.pdf
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# (This chart really is a piece of art. It's actually about the Behringer
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# X-Touch, but since that device is MCU-compatible, there's a wealth of useful
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# information in there; just ignore the bits which pertain to Xctl.)
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# There's another fairly comprehensive one here:
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# http://www.jjlee.com/qlab/Mackie Control MIDI Map.pdf
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# Information about the APCmini can be found in the Akai forums here:
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# http://community.akaipro.com/akai_professional/topics/midi-information-for-apc-mini
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[MIDI]
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# The APCmini's dedicated shift key is used to provide alternative functions
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# to some of the buttons and the faders.
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?D8 SHIFT RELEASE SHIFT
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# transport (assigned to the topmost 5 "scene launch" buttons on the right)
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A#6 A7 # Stop
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B6 A#7 # Play
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C7 B7 # Rec
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#C7 C#7 # Cycle
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C#7 G7 # Rew
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D7 G#7 # FFwd
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# the next three buttons below are used for the MCU shift keys
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# NOTE: The MCU actually has four shift keys, so one has to go. You may want
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# to rearrange these as needed.
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D#7 A#5 # Shift
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E7 B5 # Control
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F7 C6 # Option
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#F7 C#6 # Alt/Cmd
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# shifted "scene launch" buttons
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# We assign these to the function keys F1..F8 here, but of course you can
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# remap these as needed.
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^A#6 F#4
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^B6 G4
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^C7 G#4
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^C#7 A4
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^D7 A#4
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^D#7 B4
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^E7 C5
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^F7 C#5
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# bottom 3x8 grid: mute/solo/rec
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# NOTE: Incidentally, these happen to be identical to corresponding MCU input.
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# rec (bottom row of the grid)
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C0 C0
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C#0 C#0
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D0 D0
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D#0 D#0
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E0 E0
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F0 F0
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F#0 F#0
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G0 G0
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# solo (next row above)
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G#0 G#0
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A0 A0
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A#0 A#0
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B0 B0
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C1 C1
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C#1 C#1
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D1 D1
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D#1 D#1
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# mute (next row above)
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E1 E1
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F1 F1
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F#1 F#1
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G1 G1
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G#1 G#1
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A1 A1
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A#1 A#1
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B1 B1
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# track select (bottom row right above the faders)
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E5 C2
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F5 C#2
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F#5 D2
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G5 D#2
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G#5 E2
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A5 F2
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A#5 F#2
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B5 G2
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# shifted bottom row
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# We have these assigned to the bank/channel and track/pan/send/instr controls,
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# but you may want to remap some or all of these as needed.
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^E5 A#3 # Bank Left
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^F5 B3 # Bank Right
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^F#5 C4 # Channel Left
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^G5 C#4 # Channel Right
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# NOTE: Only Pan and Send appear to be supported in Ardour.
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^G#5 E3 # Track (Volume)
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^A5 F#3 # Pan
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^A#5 F3 # Send
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^B5 A3 # Instr (Device)
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# faders (MCU uses pitch bends here, use 129 as step size to get full range)
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CC48= PB[129]-1
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CC49= PB[129]-2
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CC50= PB[129]-3
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CC51= PB[129]-4
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CC52= PB[129]-5
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CC53= PB[129]-6
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CC54= PB[129]-7
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CC55= PB[129]-8
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# master fader
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?CC56= PB[129]-9
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# faders become encoders when shifted (CC16..CC23, incremental mode)
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^CC48= CC16~
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^CC49= CC17~
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^CC50= CC18~
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^CC51= CC19~
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^CC52= CC20~
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^CC53= CC21~
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^CC54= CC22~
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^CC55= CC23~
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# feedback section ########################################################
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[MIDI2]
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# transport (will light up in green)
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A7 A#6
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A#7 B6
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B7 C7[2] # Rec, blinks when engaged
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#C#7 C7 # Cycle
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G7 C#7
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G#7 D7
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# Feedback for the MCU shift keys. We've disabled this by default since
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# it doesn't add much value and clobbers the time display below.
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#A#5 D#7
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#B5 E7
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#C6 F7
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# Blinkenlights galore! The Mackie protocol provides us with both time
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# and meter data for which we provide some translations here which make
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# various LEDs light up in different colors.
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# Meter feedback: The Mackie protocol packs all 8 channel meters into a
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# single channel pressure message which we need to transform into the
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# corresponding note messages for the LEDs. Note that we only use the
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# upper 5x8 part of the grid here, in order not to clobber the 3 rows at
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# the bottom with the rec/solo/mute buttons. This means that the
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# meters, which actually have 8 different values, have to be squashed
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# into 5 LEDs per channel.
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?CP[16] C2[0,1] G#2[0:3,1] E3[0:5,5] C4[0:7,5] G#4[0:8,3]
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# Here's an alternative decoding, which creates horizontal meters
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# covering the full range, with the first channel on top. Note,
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# however, that this ranges across the entire 8x8 grid and will thus
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# clobber the rec/solo/mute controls!
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#?CP[16][-8] G#4[0,1] A4[0,0,1] A#4[0:3,1] B4[0:4,1] C5[0:5,5] C#5[0:6,5] D5[0:7,5] D#5[0:8,3]
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# This decodes the least significant digit in the time display (CC69) to
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# count off time on the 4 bottommost scene launch buttons. Note that
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# the digits are encoded in ASCII here, therefore the copious amount of
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# zeros in the value lists below to skip over all the non-digit
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# characters at the beginning of the ASCII table.
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?CC69[128] F7[0:49,1,0] E7[0:50,1,0] Eb7[0:51,1,0] D7[0:52,1,0]
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# no feedback for faders (faders aren't motorized)
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# NOTE: Feedback for rec/solo/mute/select also needs to be recognized in shift
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# mode, so that the (shifted) bank/channel left/right keys work as expected.
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# rec: color = red (vel. 3)
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?C0 C0[3]
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?C#0 C#0[3]
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?D0 D0[3]
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?D#0 D#0[3]
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?E0 E0[3]
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?F0 F0[3]
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?F#0 F#0[3]
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?G0 G0[3]
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# solo: color = green (vel. 1)
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?G#0 G#0[1]
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?A0 A0[1]
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?A#0 A#0[1]
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?B0 B0[1]
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?C1 C1[1]
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?C#1 C#1[1]
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?D1 D1[1]
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?D#1 D#1[1]
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# mute: color = yellow (vel. 5)
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?E1 E1[5]
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?F1 F1[5]
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?F#1 F#1[5]
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?G1 G1[5]
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?G#1 G#1[5]
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?A1 A1[5]
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?A#1 A#1[5]
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?B1 B1[5]
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# select (will light up in red)
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# NOTE: Ardour apparently doesn't update these when changing banks.
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?C2 E5
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?C#2 F5
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?D2 F#5
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?D#2 G5
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?E2 G#5
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?F2 A5
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?F#2 A#5
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?G2 B5
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