MaxMSP Interfacing ORCA
The word "Interfacing" is here primarily understood as a process of establishing interoperational constitution between Max/MSP and other programming languages.
Set-up
ORCA x Max/MSP Template.
ORCA
......... ......... ..D2..... ..*...... ..:04C... ......... .........Max/MSP
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-----------end_max5_patcher-----------
MIDI
MIDI is the only one of the three communication protocols that is bidirectional meaning that ORCA can both send and receive messages from Max/MSP. in order to communicate through MIDI we must make sure that both ORCA and Max/MSP are using the same MIDI Driver in this case I am using the IAC Driver Bus 1.
In this first example ORCA is sending MIDI information to Max/MSP. This information can be send on different MIDI channels in ORCA "0" is a MIDI Channel "1" in Max/MSP using the object "notein 1" will receive the note pitch value and velocity.
In this second example ORCA is receiving MIDI information from Max/MSP. Using the Kslider keyboard in conjunction with the "noteout 1" object in Max/MSP, ORCA is receiving the notational values. ORCA can not receive values below "C3" or above "D#6", as shown in the tabel.
| C3 | C#3 | D3 | D#3 | E3 | F3 | F#3 | G3 | G#3 | A3 | A#3 | B3 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| C | c | D | d | E | F | f | G | g | A | a | B |
| C4 | C#4 | D4 | D#4 | E4 | F4 | F#4 | G4 | G#4 | A4 | A#4 | B4 |
| J | j | K | k | L | M | m | N | n | O | o | P |
| C5 | C#5 | D5 | D#5 | E5 | F5 | F#5 | G5 | G#5 | A5 | A#5 | B5 |
| Q | q | R | r | S | T | t | U | u | V | v | X |
| C6 | C#6 | D6 | D#6 | E6 | F6 | F#6 | G6 | G#6 | A6 | A#6 | B6 |
| Y | y | Z | z | - | - | - | - | - | - | - | - |
This functionality is also available across multiple Midi Channels.
By default ORCA sets the Control number of MIDIcc to 64, in order to set this to 1, the users must use cmd + k or ctrl + k in order to activate the ORCA commandpromt. To change the Control number the user should type in "CC:1" in the promt. In this final example ORCA is sending MIDIcc to Max/MSP. Max receives these values through the "ctlin" object, which can also receive values from multiple MIDI-channels.
MIDI to Ipad via Bluetooth
You can also connect ORCA from your macbook to an iPad connected via bluetooth. first you need to go to Audio MIDI setup, and then open the tap called "window" and select "show MIDI studio".
inside the MIDI studio, click the "bluetooth" icon
inside the bluetooth configuration window, click advertise in order to connect a MIDI bluetooth Device.
on your ipad connect to the advertised MIDI bluetooth device.
finally on ORCA select the bluetooth midi device as your output, and now ORCA is sending MIDI data to the ipad app.
OSC
By default ORCA has an OSC port 49162, this port is assigned to the Max object "udpreceive" from here I am using the "route" object to get the data from either address /a or /b. On /a I am sending numerical values with one of the numbers changing randomly. On /b I am sending the message "HelloWorld".
OSC-Max-Patcher
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-----------end_max5_patcher-----------
When I was exploring the ways of sending OSC messages between Max/MSP and ORCA I found that sending number values were very easy in comparison to sending strings of words. All letters would be received as encoded Base36, which meant that "HelloWorld" would be recieved in Max as "17 14 21 21 24 32 24 27 21 13". Thanks to Italo Lombardo and Rajan Craveri I was able to assemble two ways of decoding the Base36 message. I have marked these as simple and complex decoders aswell as an encoder for the Base36.
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | A | B |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
| C | D | E | F | G | H | I | J | K | L | M | N |
| 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| O | P | Q | R | S | T | U | V | W | X | Y | Z |
| 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 |
UDP (Orca->MaxMSP)
By default ORCA has an UDP port 49161, in order to receive the raw UDP message in Max the UDP port should be assigned to the Max Object "mxj net.udp.recv" as an attribute "@port 49161".
UDP (MaxMSP->Orca)
In order to communicate from Max/MSP to ORCA, we can use ORCA's default UDP port 49160 with the Max object "mxj net.udp.send" with the attributes "@address 127.0.0.1" and "@port 49160". This enables ORCA to be controlled and clocked with MaxMSP. it enables ORCA to be remotely controlled with "start, stop, run, frame:0, find, copy, paste, erase, BPM, APM, skip and rewind" along with being able to control the position and writing in operators into ORCA.
UDP-Max-Patcher
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-----------end_max5_patcher-----------
Structure
Max/MSP and ORCA share a lot of communication protocols such as MIDI, UDP and OSC, which means that there is a lot of different ways of establishing a connection between the two programs. All of the protocols can be used for sending out values to Max/MSP, however it seems that only MIDI and UDP receive values from MaxMSP. This means that the only bidrectional communication possible is through MIDI or UDP, this is worth considering when composing using the two programs together.
Compose
In the previous parts we have established that you can connect ORCA, Max/MSP and Ableton through a lot of different ways. This final part aims to showcase a few of my projects that make use of these connections.
Generative composition with Max/MSP & ORCA
Here ORCA is utilized as a way of generating random MIDI signal that control various paramters in Max/MSP. Check out how it sounds here
ORCA Mod Tracker + Max for Live
Heavily inspired by the Polyend Tracker i explored the concept of music trackers by making a tracker in ORCA and connecting it via Max for Live. Read more about it [here]([https://github.com/L4COUR/L4COUR_Max-Patchers/tree/master/Max%20Projects/07_Max4Live%20-%20ORCA%20Mod%20Tracker](https://github.com/L4COUR/L4COUR_Max-Patchers/tree/master/Max Projects/07_Max4Live - ORCA Mod Tracker))
