Presentation 2001/3/22
Sound Field Creation Using A Real-time Convolution System
Koji Niimi, Tsugio Ito, Akio Takahashi, Noriaki Shime,
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Abstract(in English) The basic concept of artificial reverberation based on a convolution algorithm has been proposed since early times. Expensive and large-scale systems have been required to implement that concept, however, because of the huge number of operations to be computed in real time. The recent progress in semiconductor technology has made the concept feasible at a reasonable cost and on a practical scale. This paper describes the usability of the real-time convolution system, not only as a simple reverberator, but also in the field of multi-channel sound field creation, by weighing it against conventional IIR type reverberators. Taking a commercial convolution-type reverberator (Yamaha SREV1) as an example, it introduces an overview of the configuration, application-specific LSI and sound field creation of the reverberator, and also describes its application to multi-channel surround-sound systems.
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Keyword(in English) Convolution / Impulse Response / Reverberation / Multi-channel / Surround
Paper # EA2000-111
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Committee EA
Conference Date 2001/3/22(1days)
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Paper Information
Registration To Engineering Acoustics (EA)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Sound Field Creation Using A Real-time Convolution System
Sub Title (in English)
Keyword(1) Convolution
Keyword(2) Impulse Response
Keyword(3) Reverberation
Keyword(4) Multi-channel
Keyword(5) Surround
1st Author's Name Koji Niimi
1st Author's Affiliation Advanced System Development Center, Yamaha Corporation()
2nd Author's Name Tsugio Ito
2nd Author's Affiliation Pro Audio & Digital Musical Instrument Division, Yamaha Corporation
3rd Author's Name Akio Takahashi
3rd Author's Affiliation Pro Audio & Digital Musical Instrument Division, Yamaha Corporation
4th Author's Name Noriaki Shime
4th Author's Affiliation Music Research Laboratory, Yamaha Music Foundation
Date 2001/3/22
Paper # EA2000-111
Volume (vol) vol.100
Number (no) 723
Page pp.pp.-
#Pages 9
Date of Issue