POD & PODX System Chronology

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Institute of Sonology, Utrecht

1972-73 PDP-15 version, programs POD4, POD5 & POD6 (with monophonic real-time synthesis: fixed waveform, amplitude modulation, frequency modulation)

 

Simon Fraser University, Vancouver

1973-78 Hewlett Packard 2116 version, programs POD6, PDFIL, MERGE, POD7 (with monophonic real-time FM synthesis and 1976-78, polyphonic non-realtime FM synthesis)
1979-80 PDP 11/34 version, same programs plus PDMSK (with monophonic real-time synthesis and polyphonic non-realtime FM synthesis with the Varian computer)
1981-82 LSI 11/23 version established in the Centre for the Arts, SFU 1982 LSI 11/23 version with DMX-1000, PODX system with polyphonic real-time programs POD6X, POD7X, PDFILX, MERGE, CONDUC, FUNC, PDMSKX, PLOTX, and non-realtime program POD7	Martin Gotfrit with the LSI 11/23 & DMX-1000, ca. 1982

1986

Real-time Granular Synthesis program added (GSX)

1987

Real-time Granulated Sampled Sound added to granular synthesis (GSAMX)

1988

Initial work on Motorola DSP 56001 board to be controlled by an Atari computer

1990

Digisound-16 converter added to PODX enabling 16-bit conversion of samples to hard disk; granulation and time stretching incorporated

1991

Demo of "Quintessence Box" real-time granular synthesis using DSP 56001 at ICMC 91, Montreal

1993

Quintessence Box incorporating granular time stretching installed in SFU studios; prototype of a multiple-DSP board designed by Harmonic Functions, Burnaby

1995

DM-8 box for computer-controlled diffusion demonstrated at ICMC 95 and installed in the Sonic Research Studio at SFU; digital resonators added to the signal processing modules

1996

PODX system "retired" to the author's private studio where it continues to be compositionally productive using the DA-88 8-track recorder

1999

Audiobox (16x16 matrix mixer) added to the system

List of works realized with the POD and PODX systems

Octophonic work catalogue

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References:

B. Truax, "Discovering inner complexity: Time-shifting and transposition with a real-time granulation technique", Computer Music Journal, 18(2), 1994, pp. 38-48 (sound sheet examples in 18(1)).

B. Truax, "Real-time granular synthesis with a digital signal processor", Computer Music Journal, 12(2), 1988, pp.14-26.

B. Truax, "The PODX System: Interactive Compositional Software for the DMX-1000", Computer Music Journal, 9(1), 1985.

B. Truax, "Computer Music Composition: The Polyphonic POD System", IEEE Computer, 11(8), 1978.

B. Truax, "The POD System of Interactive Composition Programs", Computer Music Journal, 1(3), 1977, pp. 30-39.

B. Truax, "Some Programs for Real-time Computer Synthesis and Composition", Interface, 2, 1973.

B. Truax, "The Computer Composition -- Sound Synthesis Programs POD4, POD5 and POD6", Sonological Reports, No. 2, Utrecht State University, Institute of Sonology, 1973.