pianoDecoder
Decodes the polyphonic "pianobar" sequencer and sends the data as midi internally or externally. Each velocity-step can be set to it's own velocity and midi-channel. Useful to write three polyphonic melody lines in a single sequencer, mixable/automatable using the three velocity inputs.
Inlets
frac32buffer notes
bool32 clock
frac32 vel1
frac32 vel2
frac32 vel3
Outlets
None
Parameters
int32 channel1
int32 channel2
int32 channel3
int32 lownote
frac32.u.map vel1
frac32.u.map vel2
frac32.u.map vel3
Attributes
spinner channel
combo device
int i;
int32_t prv[72];
int32_t gate[72];
bool trg[72], clk;
int32_t vel[4];
int32_t channel[4];for (i = 0; i < 72; i++) {
gate[i] = 0;
prv[i] = 0;
}
channel[0] = 0;
vel[0] = 0;vel[1] = __USAT(param_vel1 + inlet_vel1, 27);
vel[2] = __USAT(param_vel2 + inlet_vel2, 27);
vel[3] = __USAT(param_vel3 + inlet_vel3, 27);
channel[1] = param_channel1 - 1;
channel[2] = param_channel2 - 1;
channel[3] = param_channel3 - 1;
if ((inlet_clock > 0) && !clk) {
clk = 1;
for (i = 0; i < 6; i++) {
int k = i * 12;
for (int j = 0; j < 12; j++) {
gate[k + j] = (inlet_notes[j] >> (i << 1)) & 1;
gate[k + j] += ((inlet_notes[j] >> ((i << 1) + 1)) & 1) << 1;
}
}
for (i = 0; i < 72; i++) {
if (!(prv[i] == gate[i])) {
int tg = gate[i];
int tp = prv[i];
int lastnote = i + param_lownote;
if (tg > 0) {
MidiSend3((midi_device_t)attr_device, MIDI_NOTE_ON + channel[tg],
lastnote, vel[tg] >> 20);
} else if (tg < 1) {
MidiSend3((midi_device_t)attr_device, MIDI_NOTE_OFF + channel[tp],
lastnote, vel[tp] >> 20);
}
prv[i] = gate[i];
}
}
} else if (inlet_clock < 1) {
clk = 0;
}