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A/V Pixels

Installation

A/V Pixels

Connected tangible pixels to visualize soundscape

Studio
Acoustic Lab. @Waseda Univ.
Year
2011
Responsibility

I was engaged in this project mostly as a Technologist and Researcher, where I designed and implemented micro controller middleware, wireless connections among local nodes, signal processing, and all other software/hardware developments.

Technology

This system comprises of a master node and multiple local nodes. The master node collects data from local nodes, and controls their behaviors. Local nodes input a sound through the embedded microphone, process it with DSP, and transmit the results to the master node. In addition, they can also represent the results of DSP using embedded full-color LED. LED color distribution algorithm among nodes is configurable - so how soundscape is presented can be designed. We used dsPIC (PIC microcontroller that is specialized for digital signal processing) as a micro controller, and written firmware in C, including IIR filter, Serial Comm - and used XBee for networking.

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Outcome

This research work was published as an academic paper in ITE Technical Report 2012.