Ardour - MIDI output channel change

[khz]

Here ist another solution to this, it spares you from having to set 16 channel dropdowns to the same channel. Save this in a file called _midi_fix_channel.lua in your ~/.config/ardour5/scripts folder. Restart Ardour, you will then have a Plugin MIDI fix channel. Add it to your strip, double-click to edit the MIDI channel you want to nail everyting to.

Source: https://discourse.ardour.org/t/output-m ... ls/89371/4

Code: Select all

ardour {
	["type"]    = "dsp",
	name        = "MIDI fix channel",
	category    = "MIDI", -- "Utility"
	license     = "MIT",
	author      = "Robert Schneider",
	description = [[A MIDI filter that nails all data to one channel.]]
}

function dsp_ioconfig ()
	return { { midi_in = 1, midi_out = 1, audio_in = 0, audio_out = 0}, }
end

function dsp_params ()
	return
	{
		{ ["type"] = "input",
			name = "Channel",
			doc = "Channel to be used for all data",
			min = 1, max = 16, default = 1, integer = true }
	}
end

function dsp_run (_, _, n_samples)
	assert (type(midiin) == "table")
	assert (type(midiout) == "table")
	local cnt = 1
	local ctrl = CtrlPorts:array ()
	local channel = ctrl[1];

	function tx_midi (time, data)
		midiout[cnt] = {}
		midiout[cnt]["time"] = time;
		midiout[cnt]["data"] = data;
		cnt = cnt + 1;
	end

	-- for each incoming midi event
	for _,b in pairs (midiin) do
		local t = b["time"] -- t = [ 1 .. n_samples ]
		local d = b["data"] -- get midi-event

		if (bit32.band (d[1], 240) ~= 240) then -- not a SYSEX
			d[1] = bit32.band (d[1], 240) + channel - 1
		end
		tx_midi (t, d)
	end
end

Source: https://pastebin.com/nF9B4PRt


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# http://x42-plugins.com/x42/x42-midifilter
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