An Essay on Graphicacy in Science, Technology and Business

pHash is an open source library released under the GPLv3 license that implements several perceptual hashing algorithms and provides a C++ API to use those functions in your own programs.

The Echo Nest is a music technology company founded by two MIT Media Lab PhDs. The Echo Nest’s proprietary music analyzer API automatically analyzes audio (e.g. aif, wav, mp3, m4a), and generates an XML file that describes the musical and structural content of the music. That representation can help power music visualization, music games, artistic installations, content-based and DJ applications with a much deeper level of music understanding. For developers, the Echo Nest technology facilitates more efficient, relevant and robust audio data extraction.

A library for the use with Miller Puckettes open source computer music software Pure Data (PD) is presented. The library is downloadable for free and you can use it under the terms of GNU General Public License. The theory that forms the basis of the proposed library is an improved Virtual Ambisonics Approach. Using this approach provides a computationally efficient implementation of virtual environments with multiple moving sound sources, room simulation, head tracking, time varying listener positions, and interchangeable HRIR settings The proposed library provides a simple API (application programmers interface) to make it easy to use for scientific as well as for artistic projects.

An online color blindness simulator for webpages