ORCV

CV for ORCΛ.

ORCΛ emits compact OSC messages. ORCV turns them into steady control voltages on a DC-coupled audio interface.

You can configure your mapping/instruments here. Atm, it opens an Expert Sleepers ES-8 with expander.

go run ./cmd/orcv

Listens on 127.0.0.1:49162.

Voices

/a   pitch 0   gate 1
/b   pitch 2   gate 3

/k   kick      8
/t   tom       9
/m   tom 2    10
/s   snare    11
/c   clap     12
/x   closed   13
/o   open     14

Channels are zero-based. 8 is the first expander output on many ES-8 setups.

In ORCΛ

=aC10

• arg 0: note (C=12)
• arg 1: gate (0=off, 1-Y=duration, Z=hold)
• arg 2: slide
• arg 3: nudge (positive = later, in 2 ms steps). Nudges are always relative to message arrival.

EDO is global for pitch voices:

:eC

C sets 12 divisions of the octave. 0 resets to 12, 1-Z sets 1-35.

Detune is global for pitch voices:

:dC

0 is perfect tune, Z is maximum detune. Notes are grouped into virtual groups (0-4, 5-8, 9-13, etc), and each groups gets its own fixed offset.

Drums:

=k3

The number is a nudge in 2 ms steps.