Music Visualization

Music visualization, a feature found in electronic music visualizers and media player software, generates animated imagery based on a piece of music. The imagery is usually generated and rendered in real time and synchronized with the music as it is played.

Visualization techniques range from simple ones (e.g., a simulation of an oscilloscope display) to elaborate ones, which often include a plurality of composited effects. The changes in the music's loudness andfrequency spectrum are among the properties used as input to the visualization.

History

The first electronic music visualizer was the Atari Video Music introduced by Atari Inc. in 1976, and designed by the initiator of the home version of Pong, Robert Brown. The idea was to create a visual exploration that could be implemented into a Hi-Fi stereo system.

Music and audio players were available on early home computers, Sound to Light Generator (1985, Infinite Software) used the ZX Spectrum's cassette player for example.[1] The 1984 movie Electric Dreams prominently made use of one, although as a pre-generated effect, rather than calculated in real-time. One of the first modern music visualization programs was the open-source, multi-platformCthugha (1994). Subsequently, computer music visualisation became widespread in the mid to late 1990s as applications such as Winamp (1997), Audion (1999), and SoundJam (2000). By 1999, there were several dozen freeware non-trivial music visualizers in distribution.

In particular, MilkDrop by Ryan Geiss, G-Force by Andy O'Meara, and Advanced Visualization Studio (AVS) by Nullsoft became popular music visualizations. AVS is part of Winamp and has been recently open-sourced, and G-Force was licensed for use in iTunes[2] and Windows Media Center[citation needed] and is presently the flagship product for Andy O'Meara's software startup company,SoundSpectrum. More recently NoiseCradle has made it possible to incorporate videos and live webcam feeds into music visualizations. The real distinction between music visualization programs such as Geiss' MilkDrop and other forms of music visualization such as music videos or a laser lighting display is the visualization programs' ability to create different visualizations for each song every time the program is run.

Wikipedia

First Post

I've always loved listening to music. An interest in audio, electronics, engineering, and signal processing came later. Sometimes inspiration strikes, and so this blog is an impulsive move on that inspiration.

The first series of postings will focus on how to design a beat tracking device that will control an RGB LED to provide interesting sequences of light and colour - essentially a music visualizer. The idea is not new, but the implementation here is original. I encourage you to give it a try. Everyone needs to start somewhere. I hope this will be of some interest, and fun. Other projects and variations will follow.

Note that unlike many other visualizers that rely on some computer-based code like Processing to work, this one is stand alone. All code is executed on the device itself.

We will start our journey with the Arduino , a well known, very well documented open source microcontroller. This is a very flexible and inexpensive development platform to start with (about $50 for the board. you just supply the USB cable, and the parts you want to control).