Outer Sounds 044 - June 2024

The selection for June 2024 is John Chowning Stria LP released by Important Records.

Chowning is known for having developed the FM synthesis algorithm in 1967. In FM (frequency modulation) synthesis, both the carrier frequency and the modulation frequency are within the audio band. In essence, the amplitude and frequency of one waveform modulates the frequency of another waveform producing a resultant waveform that can be periodic or non-periodic depending upon the ratio of the two frequencies.

Chowning's breakthrough allowed for simple—in terms of process—yet rich sounding timbres, which synthesized 'metal striking' or 'bell like' sounds, and which seemed incredibly similar to real percussion (Chowning was also a skilled percussionist). He spent six years turning his breakthrough into a system of musical importance and eventually was able to simulate a large number of musical sounds, including the singing voice. In 1974, Stanford University licensed the discovery to Yamaha, with whom Chowning worked in developing a family of synthesizers and electronic organs. This was Stanford's most lucrative patent at one time, eclipsing many in electronics, computer science, and biotechnology.

The first commercial musical instrument to incorporate FM synthesis was the Synclavier I, introduced by New England Digital Corporation in 1977. Their Synclavier II, introduced in 1980, was frequently used in the production of popular music beginning that year. The first Yamaha product to incorporate the FM algorithm was the GS1, a digital synthesizer that first shipped in 1981. Some thought, including Chowning, that it was too expensive at the time. Soon after, in 1983, Yamaha made their first commercially successful digital FM synthesizer, the DX7.

Another important aspect of Chowning's work is the simulated motion of sound through physical space. In 1972, in his composition Turenas, he was first able to create the illusion of a continuous 360-degree space using only four speakers.

Read a great interview with John Chowning here!

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Outer Sounds 045 - July 2024

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Outer Sounds 043 - May 2024