Sound field and sound image control apparatus and method

Details Sound field and sound image control apparatus and method Sound field and sound image control apparatus and method

1997-06-26

1998-08-18

Harvey, Minsun Oh

Electrical audio signal processing systems and devices

Binaural and stereophonic

Pseudo stereophonic

381 63, 381 1, H04R 500

Patent

active

057968454

ABSTRACT:
The apparatus of the invention calculates filter coefficients for controlling sound field and sound image, based on a plurality of first impulse response signals and a pair of second impulse response signals. The plurality of first impulse response signals indicate impulse responses from loudspeakers reproducing audio signals to both ears of a listener. The pair of second impulse response signals indicate impulse responses from a reference loudspeaker at a position at which a sound image is localized to both ears of the listener. The apparatus includes: a feature extracting section for receiving the pair of second impulse response signals, for extracting parameters representing features of the pair of second impulse response signals, and for outputting parameter signals; a signal adjusting section for adjusting at least one of the plurality of first impulse response signals based on the parameter signals, and for outputting a pair of third impulse response signals having the same features as the extracted features; and a coefficient calculating section for calculating the filter coefficients for controlling the sound field and sound image, based on the plurality of first impulse response signals and the pair of third impulse response signals applied from the signal adjusting means.

REFERENCES:
patent: 5333200 (1994-07-01), Cooper
patent: 5381482 (1995-01-01), Matsumoto
patent: 5572591 (1996-11-01), Numazu
patent: 5579396 (1996-11-01), Iida

Affiliated with

Also associated with

Rating

Sound field and sound image control apparatus and method 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 and sound image control apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sound field and sound image control apparatus and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1123093