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Article

Brandon Smith

Creation of new connections inside sound-generating electronic devices to provide sounds unintended by their original designers. A wide range of effects can be achieved, and extra tactile controls such as potentiometers, switches, photocells, and body contacts can be added to control the new effects, the most frequent modification being for pitch control. Often various ‘bends’ are found accidentally by arbitrarily connecting two different points on the circuit board. Circuit bending has attracted considerable attention among persons interested in experimental electronic music and synthesizers, and it can be achieved with limited electronics knowledge and construction skills. Because circuit bending calls for unauthorised, sometimes radical changes to the circuitry’s original pathways, it risks damaging or destroying the device being modified. Toys are often exploited for circuit bending because of their ubiquity and low cost and the small risk of electrical shock from their low voltage. Battery-operated toys such as the Texas Instruments Speak n’ Spell and the Casio SK-1 have latent sonic potential and are prime targets for tinkerers seeking such sounds inexpensively or at no cost and because they tend to ‘glitch’ easily, spewing out fragmented bits of digital speech and strange sounds. Examples of circuit-bent creations include electronic keyboards, sound modules, drum machines, effects pedals, and karaoke machines. Video bending uses these same methods to modify video-game consoles to make abstract visual patterns in addition to novel sounds....

Article

Hugh Davies and Anne Beetem Acker

The Swedish national centre for electronic music and sound art, in Stockholm. It was preceded by a smaller studio run by the Worker’s Society of Education from 1960. EMS was established by Swedish Radio in 1964 under music director and composer Karl Birger Blomdahl (...

Article

Anne Beetem Acker

Electronic circuit that controls a voltage-controlled amplifier (VCA), voltage-controlled filter (VCF), or voltage-controlled oscillator (VCO), allowing the output behaviour (or envelope, as the output curve is known in electronics) of a sound signal to be shaped over time. When controlling a VCA the envelope generator shapes volume; controlling a VCF affects timbre, while mixing signals to a VCA and VCO produces a frequency contour. The most common envelope shaper, the ADSR (Attack, Decay, Sustain, Release), generates a four-segment signal that allows for setting the rise and fall rates for the attack, decay, and release, and setting a level for the sustain. Some ADSRs allow each segment to be scaled proportionately to an input signal such as key velocity. Advanced envelope generators, such as a UEG (universal event generator), can have hundreds of segments for which time and slope can be set, and provide a means to repeat, skip, or abbreviate a segment....

Article

GAME  

Hugh Davies, Annette Vande Gorne and Anne Beetem Acker

Composition machine developed by the Belgian composer Léo Küpper (b Nidrum, 16 April 1935) in Brussels between 1968 and 1978. Küpper had begun experimenting with electronic music in 1959 while a student at Liège University, using two Brüel & Kjaer oscillators and a tape recorder. In ...

Article

Jason Freeman and Frank Clark

Interdisciplinary research centre for music, computing, engineering, design, and business, founded in 2008 at the Georgia Institute of Technology in Atlanta. The Center focuses on the development and deployment of transformative musical technologies, and emphasizes the impact of music technology research on scholarship, industry, and culture. In ...

Article

Anne Beetem Acker

Unique MIDI synthesizer controlled by a gamma-ray spectrometer designed and built by Jerry Chamkis (b Los Angeles, CA, 1942). He studied physics at the University of California, Santa Barbara, but disillusioned by the emphasis on military applications, he left and became chief engineer at a radio station in Houston, Texas. In ...

Article

Anne Beetem Acker

(b Bermuda, July 10, 1957). American audio engineer, musician, and owner of Keith McMillen Instruments, based in Berkeley, California. He received his BS in acoustics from the University of Illinois, where he also studied classical guitar and composition. In 1979 he founded Zeta Music, which designed and sold electric and electronic violins and basses. In ...

Article

Alexander Bonus

Portable electronic communication device. These have become robust platforms for digital audio production, composition, and music performance since the beginning of the 21st century. Recent compositions for mobile-phone ringtones might represent an emerging music genre. Since 2008, many commercial apps have transformed mobile devices into miniature synthesizers. Popular virtual-instrument programs such as Ocarina (...

Article

Mandy-Suzanne Wong

(b Madison, WI, 1979). American sound artist, installation artist, electronic composer, laptop performer, and visual artist. Based in Los Angeles, he has collaborated with Will Long, Mise_En_Scene, and Marc Manning, among others, and exhibited and performed throughout the United States and Europe. He owns and operates Dragon’s Eye Recordings, which promotes promising but under-recognized sound artists and composers....

Article

Electronic circuit that generates a single periodic waveform. Linear or harmonic oscillators produce a sinusoidal output, while non-linear or relaxation oscillators produce a non-sinusoidal output such as a sawtooth, square, or triangle wave. Audio oscillators produce frequencies in the audio range (16 Hz to 20 kHz), RF oscillators in the radio frequency range (100 kHz to 100 GHz), and LFO (low frequency oscillators) produce frequencies below 20 Hz. For the independent use of oscillators as musical instruments, ...