Audio mixing circuit

Details Audio mixing circuit Audio mixing circuit

2006-05-23

2006-05-23

Grier, Laura A. (Department: 2644)

Electrical audio signal processing systems and devices

With mixer

C381S061000, C381S103000

Reexamination Certificate

active

07050595

ABSTRACT:
An audio mixing circuit used in an audio mixing console includes an equalizer, a fader cascaded to the equalizer, a distance filter cascaded to the fader, and a pan circuit cascaded to the distance filter. The distance filter is configured to attenuate and increase an audio signal level of an input audio signal in an entire audio-frequency band and an audio signal level of a high-audio-frequency component extracted from the input audio signal, in a correlated manner. Thus, a natural transition of sense of distance can be adjusted with a simple operation without the need for adjusting three elements of the fader, equalizer and an AUX feed from the post-fader terminal at the same time.

REFERENCES:
patent: 4701722 (1987-10-01), Dolby
patent: 2002/0031231 (2002-03-01), Oinoue et al.
John M. Eagle, “Handbook of Recording Engineering”, Published on 1986, Van Nostrand Reinhold Company, Inc.
Maekawa et al., “Kenchiku-Kankyo Onkyo-Gaku (Architectural-Environmental Acoustics) Second Edition” with Partial English translation, Published on Sep. 25, 2000, Kyoritsu Shuppan, Co., Ltd.

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