Electrical audio signal processing systems and devices – Sound effects – Reverberators
Reexamination Certificate
2011-01-25
2011-01-25
Chin, Vivian (Department: 2614)
Electrical audio signal processing systems and devices
Sound effects
Reverberators
C381S061000, C381S066000
Reexamination Certificate
active
07876909
ABSTRACT:
A circuit, method, and system for producing artificial ambience effect for an input audio signal, mono, stereo, or surround. The ambience effect enhances artificial reverberation, replaces artificial reverberation, or synthesizes extra audio channels, such as surround channels. The circuit may include a transient reduction module and a reverberation filter. The transient reduction module may be adapted to reduce transients in an input audio signal of one or more channels. The reverberation filter maybe adapted to receive a transient-reduced signal of one or more channels corresponding to the transient-reduced signal.
REFERENCES:
patent: 4584700 (1986-04-01), Scholz
patent: 6215408 (2001-04-01), Leonard et al.
patent: 0202159-0 (2002-07-01), None
Niimi K., et al “A new digital reverberation with excellent control capability of early reflections” Audio Engineering Society 74thConvention, (1983) pp. 1-24.
Jot J.M. et al “Digital delay networks for designing artificial reverberators” Audio Engineering Society 90thConvention, (1991) pp. 1-16.
Blaubert J., “Spatial hearing” MIT press (1997) pp. 276-279, 348-358.
Begault D.R., “3-D sound for virtual reality and multimedia” AP professional (1994), pp. 45-46, 99-111, 175-190.
M. Karjalainen et al “More about this reverberation science” Audio Engineering Society 111thConvention, (2001) pp. 1-8.
Y. Grenier et al “Extraction of weak background transients from audio signals” Audio Engineering Society 114thConvention, (2003) pp. 1-10.
S. Molla et al “Determining local transients of audio signal, white paper by LATP” CMI, Marseille, France (2004) pp. 1-4.
Gardner M.B. “Historical background of the Haas and or precedence effect” J. of Acoustical Society of America, No. 43 (1968) pp. 1243-1247.
D. Griesinger “Practical processors and programs for digital reverberation” Audio Engineering Society 7thConvention, (1989) pp. 187-195.
Neoran Itai
Nevo Yoad
Shashoua Meir
Browdy and Neimark , P.L.L.C.
Chin Vivian
Monikang George
Waves Audio Ltd.
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