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authorneauoire <[email protected]>2020-02-05 10:32:58 -0500
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-# Tutorial
-
-If this is your first time trying out **Orca**, watch this [introduction video](https://www.youtube.com/watch?v=RaI_TuISSJE). If you want to learn how to use a handful of basic operators, have a look at the [workshop](WORKSHOP.md).
-
-## General
-
-- On **OSX**, setup [IAC virtual MIDI buses](https://help.ableton.com/hc/en-us/articles/209774225-Using-virtual-MIDI-buses).
-- On **Windows**, setup [loopMidi](http://www.tobias-erichsen.de/software/loopmidi.html).
-- On **Linux**, setup [qjacktl](https://qjackctl.sourceforge.io/).
-
-## Pilot
-
-[Pilot](https://github.com/hundredrabbits/Pilot) is a minimalist synth software designed to work via UDP, and to quickly get started with Orca. This **requires no setup**, as long as both applications are open, they should be able to communicate with each other.
-
-- Launch Orca & Pilot.
-- In Orca, make sure that UDP is pointing to port `49161`.
-- Bang something like `;03Cff` to [play a note](https://github.com/hundredrabbits/pilot#play).
-- Bang something like `;revff` to [add reverb](https://github.com/hundredrabbits/pilot#effects).
-
-## Ableton Live
-
-To send [Midi notes](https://github.com/hundredrabbits/Orca#midi) to [Ableton Live](https://www.ableton.com/en/) instruments, bang the Midi operator `:`, like `:03C` to send to _Channel 1, Octave 3, Note C_. Have a look at [midi.orca](https://github.com/hundredrabbits/Orca/blob/master/examples/_midi.orca) to see it in action.
-
-- Launch Ableton Live.
-- Create a new **midi instrument** track.
-- Select `IAC Driver(Bus 1)`(OSX), or `LoopMidi`(Windows), in the instrument's inputs dropdown.
-- Activate the **In** toggle, on the instrument track.
-
-## SonicPi
-
-To send [OSC messages](https://github.com/hundredrabbits/Orca#osc) to [SonicPi](http://sonic-pi.net), select [port 4559](https://github.com/hundredrabbits/Orca#osc). SonicPi listens to the address defined in `sync`, to send to the `live_loop`, bang the OSC node `=`, like `=a`. Have a look at [sonicpi.orca](https://github.com/hundredrabbits/Orca/blob/master/examples/software/sonicpi.orca) to see it in action. If you need help, visit the [SonicPi x Orca forum](https://in-thread.sonic-pi.net/t/using-orca-to-control-sonic-pi-with-osc/2381/).
-
-```
-live_loop :drum do
- use_real_time
- sync "/osc/a"
- sample :bd_haus, rate: 1
-end
-```
-
-## Bitwig [Linux and JACK]
-
-The following is taken from this page: https://answers.bitwig.com/questions/1218/how-do-i-get-midi-inout-of-bws-on-linux
-
-- Quit Bitwig if running.
-- Start `qjacktl`.
-- Go to _Setup > Settings > Parameters_ and set MIDI Driver to "none" (this turns off jack-midi)
-- Go to Setup > Misc and check "Enable ALSA Sequencer Support" (if not enabled)
-- Stop Jack if running and quit gjackctl
-- Run sudo modprobe snd_virmidi midi_devs=1 (to enable virtual midi with one device which is easier to understand for now)
-- Start qjacktl
-- Start jack
-- Open Connections: Connect device on left "0: QuNexus MIDI 1" (as an example) to "0:VirMIDI 5-0"
-- Open Bitwig
-- Under Options > Preferences > Controllers click "Add controller manually"
-- Choose "Generic MIDI Keyboard"
-- Once it appears as an input choose "Virtual Raw MIDI/1"
-
-## VCV Rack
-
-- Start VCV Rack
-- Add a "VCV MIDI-CV" module to your rack
-- Set the first parameter, MIDI Driver, to your local loopback driver
- - Windows: Start loopMIDI, be sure to create at least one device, then select "loopMIDI" as the parameter
- - Linux: Use "ALSA" (the widely supported Linux sound architecture)
-- Set the second parameter to the MIDI interface
- - Windows: Use the loopMIDI device you created
- - Linux: Select the default "MIDI Through" device (available by default on most ALSA configurations)
-- Start Orca
-- Use the Hotkey Ctrl+Period to cycle through MIDI output devices until you see your device in the lower-right corner
-- Bang a MIDI command to VCV: `:03c88` to get a note and gate trigger from MIDI-CV
-
-## Dotgrid
-
-To send [UDP messages](https://github.com/hundredrabbits/Orca#udp) to [Dotgrid](http://github.com/hundredrabbits/Dotgrid), select [port 49160](https://github.com/hundredrabbits/Orca#udp). To draw lines on Dotgrid, you need to bang the UDP node `;` with different [commands](https://github.com/hundredrabbits/Dotgrid/blob/master/desktop/sources/scripts/listener.js). Have a look at [dotgrid.orca](https://github.com/hundredrabbits/Orca/blob/master/examples/software/dotgrid.orca) to see it in action.
-
-- `;0`, clear layer **#1**.
-- `;0l1234`, add a line from `1,2` to `3,4`.
-- `;`, redraw.
-
-Here's a list of supported operations.
-
-```
-;0 // Clear Layer 1
-;0l1234 // Add Line from 1,2 to 3,4
-;0c1234 // Add Clockwise Arc from 1,2 to 3,4
-;0r1234 // Add Reverse Arc from 1,2 to 3,4
-; // Redraw
-```
-
-## FAQS
-
-### Why does placement of `V` matter?
-
-Orca operates linearly from the top-left, to the bottom-right, operators are executed in that sequence, and so the variables stored at the top, can be overwritten by the variables declared at the bottom.
-
-### Why is orca not making any sound?
-
-Orca is not a synthetizer, it is meant to control audio & visual software, or hardware. Orca will never include domain specific operators to generate music or to create pictures. It is designed to be as generic as possible.
-
-## Golf
-
-### Modulo
-
-Will output the modulo of `6 % 4`.
-
-```
-1X.
-6I4
-```
-
-### Uppercase
-
-Will output uppercase `C`.
-
-```
-cA1.
-.dAZ
-```
-
-### Lowercase
-
-Will output lowercase `C`.
-
-```
-H..
-CM1
-```
-
-### Substract
-
-Will substract `8 - 3`.
-
-```
-.3Mz
-8Ax.
-```
-
-### Not Null
-
-Will bang if not null.
-
-```
-cYc
-J.J
-cFc
-```
-