Sound field controller

Details Sound field controller Sound field controller

1994-03-08

1996-11-05

Kuntz, Curtis

Electrical audio signal processing systems and devices

Binaural and stereophonic

381 17, 381 18, 381 63, 84630, H04R 500, H03G 300

Patent

active

055725910

ABSTRACT:
According the present invention, a sound field controller for reproducing a sound field with presence comprising; input terminals for inputting an audio signal having a first and a second channel signals, a signal extracting circuit for receiving and processing the audio signal, and producing an extracted signal of the audio signal, an operation circuit for receiving the extracted signal from the signal extracting circuit, performing the convolution on the extracted signal, and generating a convolution sum signal, a delay circuit for delaying the convolution sum signal by a predetermined time, and producing a delayed signal, an adding circuit for receiving the audio signal and the delayed signal, and adding the audio signal and the delayed signal with a predetermined summation ratio to produce a summed signal, and output terminals for reproducing the summed signal to localize a sound image in a desirable direction.

REFERENCES:
patent: 4748669 (1988-05-01), Klayman
patent: 4856064 (1989-08-01), Iwamatsu
patent: 4980914 (1990-12-01), Kunugi et al.
patent: 5040219 (1991-08-01), Ando et al.
patent: 5067157 (1991-11-01), Ishida et al.
patent: 5241604 (1993-08-01), Noguchi
patent: 5381482 (1995-01-01), Matsumoto

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