Yesterday we worked as well on the project poster which will be presented on febuary 07/2012 together with our interactive sound-installation. It contains a project description as well as the sensors we are going to use and the work-around of the different components.
You can see the poster large-scaled on our project-side.
Here is a simple application to demonstrate how easily is to use Emotiv Epoc in OpenInterface.
In this application, we use the gyroscope of the Epoc to control the computer mouse.
We’ll use this application to allow the user to chose a picture on a screen.
Yesterday we wrote a code in C++ to interface the Polar HeartBeat Counter. As we mentioned, we had some problems in order to get the data in real-time. Now, everything is working perfect, so we could proceed to the next step: converting the dataformat so we will be able to send it to Kyma. This converting is done in OpenInterface. At this moment, we have already the parameters of the reactions of the person who uses the headset and the heartbeat of that person. It’s the purpose to send all the data to Kyma, so we can modify the sound using all these parameters. That’s what we’re going to do the next days.
After using OpenVibe to get the signals, we spent time on the Emotiv API.
It proposes directly different functions for three types of behavior:
- The emotions;
- The cognition;
- The expressions.
This last one, is the one wich allows to get the most results in a few time. So, we decided to use it (we don’t have time to explore all the possibility the Epoc offers).
It is also easy to use and, in a short time, we managed to implement it in OpenInterface.
Here is a list of the different expressions that we can recognize (this works for most tests) :
- The blink of eyes
- The eyebrow movement
- The left wink
- The right Wink
- The look on the right
- The look on the left
- Clench teeth
- The smile
Today we grab some pictures, videos and sounds of Brussels city to use in our project.
We recorded various sounds from the city, these sounds are going to be morphed in a new sound that will be related to the respective picture.
These sounds were extracted from videos recorded in the city were then cut into short extracts.
Our consultant, AERTS Gregory, has coded for us a little program in Pure Data.
The program catches an internet radio stream, analyses its frequency. For each of the 4 different ranges of frequency, it sends an OSC message, with a value between 0 and 1, to the Kyma that can be linked to a parameter.
UPDATE: We have added the possibility to play a local MP3 file in case of network problem.
Today we provided an interface to the Polar HeartBeat Counter. We used the Polar Heart Rate Monitor Interface (SEN-08661) to convert the signals we receive. The HRMI provides a logic-level serial interface. So, we wrote a simple code in C++ to get the data of the heartbeat in real-time. For now it’s not working perfect, but we found the solution to solve the problem, so tomorrow, the interface will be completed and we will be able to get the heartbeat of a person in real-time.
First read the “Skemmi-QuickStart.pdf” (how to install OpenInterface and first steps into skemmi environment) and “OpenInterfaceDeveloperComponentGuide.pdf” (how to implement a new component).
Now, here is a step-by-step on how implement OpenVibe VRPN server in OpenInterface.