Chowning John MacLeod, *22 August 1934 Salem (New Jersey), American composer and theoretician, pioneer of computer music. He studied music at Wittenberg University in Springfield, Ohio, BA 1959, and then in 1959–62 with N. Boulanger in Paris and at Stanford University in California (1962–64, PhD 1966). He led the Computer Music and Acoustic Group at the same university in 1966–74, and he lectured in composition and conducted research on computer sound synthesis from 1975. In 1975, he founded the Centre for Computer Research in Music and Acoustics (CCRMA), which he directed until 1996. He collaborated with other institutions dealing with programming and computer music in the United States and Europe, including Bell Laboratories in New Jersey and the Institut de Recherche et de CoordinationAcoustique/Musique (IRCAM) in Paris. Chowning was a scholarship holder of the Deutscher Akademischer Austauschdienst (DAAD) in West Berlin (1974) and three times of IRCAM (1977–79, 1981 and 1985). In 1988, he became a member of the American Academy of Arts and Science, in 1995, he received the Officer’s Cross of l’Ordre des Arts et des Lettres in Paris, and in 1994, the National Order of the Legion of Honour. He was awarded honorary doctorates by Wittenberg University (1990), Université de la Méditerranée in Marseille (2002), Queen’s University in Belfast (2010) and an honorary doctorate in musicology by the Hamburg University of Music and Theatre (2016). He is often invited to lectures and scientific conferences in many countries, including in Warsaw in 1986.
In 1967, Chowning discovered the frequency modulation (FM) algorithm, in which both the carrier and modulating signals are in the acoustic frequency range. This was a breakthrough in computer sound synthesis, allowing the simple and efficient creation of sounds with complex spectra, the course of which could be controlled in time. He spent the next 6 years working on using this discovery to create a system of practical importance for music. In 1973, Stanford University began cooperation with the Japanese company Yamaha, which led to the creation of Chowning’s FM-based DX and SY series synthesisers, which in turn led to a breakthrough in the field of digital synthesisers. Chowning’s second major achievement was the invention of a way to simulate moving sound sources in two-dimensional space, which was used in his compositions and inspired many composers of electroacoustic music.
Literature: J. Aiken, John Chowning: Computer Synthesis Expert at Stanford, “Contemporary Keyboard” 1978 no. 4 (9); D. Mercier Interview with John Chowning, “Les cahiersde l’ACME”, November 1985; C. Roads, John Chowning on Composition, in: Composers and the Computer, Los Altos (California) 1985; Tech Talk – John Chowning on Technology and Music, “Electronics & Music Maker” V, Cambridge 1989; O. Mattis, Chowning, John M(acLeod), in: The New Grove Dictionary of Music and Musicians, ed. S. Sadie, J. Tyrrell. London 2001; V. Tiffon, L’ambivalence de l’harmonie et du timbre chez Jean-Claude Risset et John Chowning, “Analyse musicale” 2003 no. 47; P. Lehrman, A Talk with John Chowning. Extreme Vibrato and other Accidental Flashes of Genius. “Mix Magazine” February 2005; P. Lehrman, A Talk with John Chowning. Making Electronics Sing, “Mix Magazine” March 2005; P.A. Castanet, É. Gayou, J.C. Risset et al. (ed.), John Chowning. Portraits polychromes. Paris 2009; A. Nelson, The Sound of Innovation: Stanford and the Computer Music Revolution, Cambridge 2015.
Compositions:
electronic:
Sabelithe II for tape, 1966–71
Turenas for tape, 1972
Stria for tape, 1977
Phoné for tape, 1980-81
Kaleidoscope for 2 pianos and tape, 1993
Voices, 2005 (version 1), 2006 (version 2), 2011 (version 3)
Works:
The Simulation of Moving Sound Sources, “Journal of the Audio Engineering Society” 1971 no. 19, reprint in “Computer Music Journal” 1977 no. 3
Computers, Composition, and Research, in: Erste Woche für Elektronische Musik 10.–15. Februar 1975, ed. G. Bennett, Basel 1975
The Synthesis of Complex Audio Spectra by Means of Frequency Modulation, “Journal of the Audio Engineering Society” 1973 no. 7, reprint in “Computer Music Journal” 1977 no. 2, Polish ed. Synteza złożonych widm akustycznych przy pomocy modulacji częstotliwości, tranl. W. Kotoński, “Zeszyty Naukowe Akademii Muzycznej w Warszawie” 1995 no. 31
Computer Simulation of Music Instrument Tones in Reverberant Environments, [co-authorship with J.M. Grey, J.A. Moorer and L. Rush], Stanford 1974
Synthesis of the Singing Voice by Frequency Modulation, in: Sound Generation in Winds, Strings, Computers, ed. E. Jansson, J. Sundberg, “KTH Skriftserie” XXIX, Stockholm 1980
FM Synthesis. Its Evolution, in the book of proceedings of the international computer music conference, New York 1983
The Theory and Practice of FM Synthesis, [co-authorship with D. Bristow], Tokio 1986
Frequency Modulation, Synthesis of the Singing Voice, in: Current Directions in Computer Music Research, ed. M.V. Mathews, J.R. Pierce, Cambridge 1989
Music from Machines. Perceptual Fusion and Auditory Perspectives – for Ligeti, “Center for Computer Research in Music and Acoustics” March 1990
Perceptual Fusion and Auditory Perspective, in: Music, Cognition, and Computerized Sound: An Introduction to Psychoacoustics, ed. P.R. Cook, Cambridge 1999
Composer le son lui-même, in: John Chowning. Portraits polychromes, ed. P.A. Castanet, É. Gayou, J.C. Risset et al. Paris 2005
„Stria”: Lines to Its Reconstruction, “Computer Music Journal” 2007 no. 31 (3)
Fifty Years of Computer Music: Ideas of the Past Speak to the Future, in: Computer Music Modeling and Retrieval. Sense of Sounds, ed. R. Kronland-Martinet, S. Ystad, K. Jensen, Berlin – Heidelberg 2008
Wave studies: Sailing an ocean with Max and Marjorie Mathews, “Computer Music Journal” 2009 no. 33 (3)