Cortex version 2.6.1 is now released with BCI-OSC

BCI – OSC

Open Sound Control (OSC) is a universal communications protocol optimized for modern networking to enable connections between computers and other multimedia devices. EMOTIV’s BCI-OSC enables EMOTIV Brainwear® and Virtual Brainwear® to interface with a wider variety of OSC compatible hardware and software applications. OSC allows you to send mental commands, facial expressions, or performance metrics to an external, network-connected device.

The following example details the steps to connect EMOTIV’s BCI-OSC with Max MSP, a visual programming language for music and multimedia.

Step 1: Open BCI

Step 2: Select a profile and connect to a headset (virtual or real)

Step 3: Open BCI-OSC tab and set:

• Sending mode: Unicast to Self
• IP: 127.0.0.1
• Port: 8000
• Data Streams: Select the ones you want to use

Step 4: Click Start

Step 5: Open Max MSP, go to File > Package Manager and install CNMAT Externals

Step 6: Go to https://github.com/Emotiv/opensoundcontrol/tree/develop (need permission to access) and check the table with OSC Address Patterns (see image below)

Step 7: Create (replicate) the nodes below and change OSC-route according to whichever OSC Pattern you wish to address (in the example image, Facial expressions/Smile) – check table in the previous step for the addresses.

Step 8: Open Processing and go to Sketch > Import Library… > Add Library , search and install oscP5

Step 9: Open a new File.

Step 10: Import oscP5 to the code and initialize an instance listening to port 12000. Example code (copy and paste in Processing):

import oscP5.*; //OSC receive OscP5 oscP5; // This value is set by the OSC event handler float importedValue = 0; float radius; void setup() { size(1200,1000); // Initialize an instance listening to port 12000 oscP5 = new OscP5(this,8500); } void draw() { background (0); // Scale up imported value radius = importedValue * 1000; // Display circle at location vector stroke(255); strokeWeight(2); fill(255); ellipse(500,500, radius, radius); println(radius); } void oscEvent(OscMessage theOscMessage) { float value = theOscMessage.get(0).floatValue(); importedValue = value; }

Step 11: Click the Play button and watch the graphics change according to Smile. importedValue is associated with the circle radius.

Step 12: Open any example code in File > Examples…

Step 13: Associate importedValue with any float variable from any Library to play around. Be sure to:

• Import oscP5;

import oscP5.*; //OSC receive OscP5 oscP5; // This value is set by the OSC event handler

• Initialize importedValue (before void setup);

float importedValue = 0;

• Initialize oscP5 (place it inside void setup);

// Initialize an instance listening to port 12000 oscP5 = new OscP5(this,8500);

Associate the event with the variable importedValue (place it after void draw);

void oscEvent(OscMessage theOscMessage) { float value = theOscMessage.get(0).floatValue(); importedValue = value;}

The new Cortex 2.6.1 also has many other updates and enhancements are waiting for you to explore!