Reverberation processor for interactive audio applications

Details Reverberation processor for interactive audio applications Reverberation processor for interactive audio applications

2005-12-20

2005-12-20

Chin, Vivian (Department: 2644)

Electrical audio signal processing systems and devices

Sound effects

Reverberators

C084S630000

Reexamination Certificate

active

06978027

ABSTRACT:
An improved reverberation processor includes a technique for changing environmental parameters without causing disturbing audio artifacts. The technique includes the steps of sequentially changing the read pointers of different delay lines. Additionally, for each delay line a level control variable is ramped down prior to changing the read pointer and then ramped back up. The reverberation processor also provides means for producing and controlling a repeating echo in the reverberation decay, as well as adjusting the diffusion (or echo density) of the reverberation.

REFERENCES:
patent: 4338581 (1982-07-01), Morgan
patent: 4731835 (1988-03-01), Futamase et al.
patent: 4731848 (1988-03-01), Kendall et al.
patent: 4817149 (1989-03-01), Myers
patent: 5131051 (1992-07-01), Kishnaga et al.
patent: 5491754 (1996-02-01), Jot et al.
patent: 5553150 (1996-09-01), Kozuki
patent: 5619579 (1997-04-01), Ando et al.
patent: 5657476 (1997-08-01), O'Connell et al.
patent: 5689571 (1997-11-01), Kitamura
patent: 5781461 (1998-07-01), Jaffe et al.
patent: 6032235 (2000-02-01), Hoge
patent: 6188769 (2001-02-01), Jot et al.
patent: 6483922 (2002-11-01), Limacher
Stautner, John, et al., “Designing Multi-Channel Reverberators”, Computer Music Journal, 1982, vol. 6, No. 1, pp. 52-65.
Jot, Jean-Marc, “Efficient models for reverberation and distance rendering in computer music and virtual audio reality”, Proceedings ICMC, 1997, pp. 236-243.
Dattorro, Jon, “Effect Design (Part 1: Reverberator and Other Filters)”, J. Audio Eng. Soc., Sep. 1997, vol. 45, No. 9, pp. 660-684.
Dattorro, Jon, “Effect Design (Part 2: Delay-Lin Modulation and Chorus)”, J. Audio Eng. Soc., Oct. 1997, vol. 45, No. 10, pp. 764-788.
Laakso, Timo I., et al., “Splitting the Unit Delay-Tools for fractional delay filter design”, IEEE Signal Processing Magazine, Jan. 1996, vol. 13, No. 1, pp. 30-60.
Van Duyne, Scott A., et al., “A Lossless, Click-free, Pitchbend-able Delay Line Loop Interpolation Scheme”, Proceedings ICMC, 1997, pp. 252-255.

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