Sound field control device

Details Sound field control device Sound field control device

1996-08-09

1998-03-10

Kuntz, Curtis

Electrical audio signal processing systems and devices

Binaural and stereophonic

Pseudo stereophonic

381 1, 381 63, H04R 500

Patent

active

057270678

ABSTRACT:
A sound field control device includes a surround decoder for decoding an input surround encode signal and generating three channel signals of L, C and R to be reproduced in front left, front center and front right and one channel signal of S to be reproduced in the rear, output terminals for outputting the three channel signals, a first reflected sound generation section generating a reflected sound of the signal S, a second reflected sound generation section generating another reflected sound signal of the signal S, a first adder adding the reflected sound signal generated by the first reflected sound generation section and the signal S together, a phase shifting section shifting phase of the reflected sound signal generated by the second reflected sound generation section according to frequency of the reflected sound signal, a second adder adding a reflected sound signal provided by the phase shifting section and the signal S together, and output terminals for outputting signals of RL and RR channels for reproduction in rear left and rear right positions or reverse positions. At least one of the first and second adders adds the reflected sound signal and the signal S together at a rate at which a value obtained by dividing level of the reflected sound signal by level of the signal S will become 0.5 or over.

REFERENCES:
patent: 4856046 (1989-08-01), Iwamatsu
patent: 4933768 (1990-06-01), Ishikawa et al.
patent: 4980914 (1990-12-01), Kunugi
patent: 5015462 (1991-05-01), Lowe et al.
patent: 5261005 (1993-11-01), Masayuki
patent: 5371799 (1994-12-01), Lowe
patent: 5524053 (1996-06-01), Iwamatsu
patent: 5657391 (1997-08-01), Jyosako

Affiliated with

Also associated with

Rating

Sound field control device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sound field control device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sound field control device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-146603