Sound field control system

Details Sound field control system Sound field control system

1990-10-11

1992-06-16

Isen, Forester W.

Electrical audio signal processing systems and devices

Sound effects

381 63, H03G 300

Patent

active

051230500

ABSTRACT:
In the process of forming the effect sound for reproducing a sound field, a down-sampling part for reducing the sampling frequency of the digital signal is disposed before the step of the digital operation which becomes the central part of the forming process, by which a large amount of operation processing is carried out at a low sampling rate. With respect to the direct sound, processing such as gain adjustment is carried out without decreasing the sampling frequency. This results in a sound field control system which permits one to realize a higher quality and natural sound field control effect without significantly increasing the amount of hardware needed.

REFERENCES:
patent: 4569268 (1986-02-01), Futamase et al.
patent: 4628789 (1986-12-01), Fujimori
patent: 4701956 (1987-10-01), Katoh
patent: 4942799 (1990-07-01), Suzuki

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