254 lines
6.6 KiB
Plaintext
254 lines
6.6 KiB
Plaintext
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# Mackie emulation for the AKAI APCmini
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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
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# by the APCmini having no encoders, no motorized faders, and not nearly as
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# many dedicated buttons as a Mackie device. But it offers enough controls to
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# be usable as a basic DAW controller. Tested with Ardour.
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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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# SETUP: The following lines will take care of setting up all the connections
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# automatically, but you still need to enable the Mackie control surface in
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# Ardour, so that Ardour exposes the Mackie control ports.
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JACK_IN1 APC MINI MIDI 1
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JACK_OUT1 ardour:mackie control in
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JACK_IN2 ardour:mackie control out
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JACK_OUT2 APC MINI MIDI 1
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# PROTOCOL DOCUMENTATION: The Mackie Control (MC) protocol is fairly
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# ubiquitous, but since manufacturers can't be bothered to properly document
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# their stuff these days, we have to rely on volunteers who do their work
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# using some reverse engineering. Here are the links that I found most
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# useful:
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# This is fairly comprehensive, but lacks the feedback messages:
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# http://www.jjlee.com/qlab/Mackie Control MIDI Map.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 and its Xctl protocol, but there's useful information about MC in
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# there as well:
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# http://www.budgetfeatures.com/XctlDOC/Xctl Protocol for X-Touch V1.0.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 D7 # 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 MC shift keys
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# NOTE: The MC 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 MC 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/plugin
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# controls, 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: Plugin appears to be unsupported 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 G3 # Plugin (Device)
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# faders (MC 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 $M0 # reset all meters, see "meter feedback" below
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A#7 B6
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B7 C7[2] # Rec, blinks when engaged
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#D7 C7 # Cycle
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G7 C#7
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G#7 D7
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# Feedback for the MC shift keys. We've disabled this by default since it
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# doesn't add much value and clobbers some of the blinkenlights 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 and
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# meter data for which we provide some translations here which make various
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# LEDs light up in different colors.
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# Meter feedback: Each meter value is sent as a channel pressure message (on
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# the first MIDI channel) with the mixer channel index 0..7 in the hi- and the
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# meter value in the lo-nibble of the velocity value. On a real MCP device
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# like the X-Touch, the meters have 7 segments (4 green, 3 orange, and 1 red),
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# but the actual range of the meter values seems to be more like 0..13 (at
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# least that's what Ardour outputs, YMMV). Note that we only use the upper
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# 5x8 part of the grid here, in order not to clobber the three rows at the
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# bottom with the rec/solo/mute buttons, so we have to squash the meter values
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# into those 5 LEDs per strip in some way. The following setup with 3 green,
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# 1 yellow and 1 red LED seems to work reasonably well, but you might want to
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# adjust the colors and the mapping of the meter values to your liking.
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CP[16] C2{0,1} G#2{0:3,1} E3{0:6,1} C4{0:9,5} G#4{0:12,3}
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# NOTE: We only report the values as we receive them here, there's no
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# automatic decay of the meters like with real Mackie hardware. Thus we
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# explicitly reset all meters when transport stops below. (Ardour at least
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# does *not* do that automatically.)
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M0[1] $CP{0} $CP{16} $CP{32} $CP{48} $CP{64} $CP{80} $CP{96} $CP{112}
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# This decodes the least significant digit in the time display (CC69) to count
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# off time on the 4 bottommost scene launch buttons. Note that the digits are
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# encoded in ASCII here, therefore the copious amount of zeros in the value
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# lists below to skip over all the non-digit characters at the beginning of
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# the ASCII table.
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CC69[] 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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# feedback for rec/solo/mute/select
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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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