Apparatus for expanding and controlling sound fields

Details Apparatus for expanding and controlling sound fields Apparatus for expanding and controlling sound fields

1994-01-31

1998-01-20

Isen, Forester W.

Electrical audio signal processing systems and devices

Binaural and stereophonic

381 86, H04S 100

Patent

active

057108188

ABSTRACT:
As in a compartment of an automotive vehicle, when a left- and a right-channel loudspeakers are disposed at angularly different positions from each other with respect to a frontward direction of a listening position, there will be formed a sound field laterally asymmetric with respect to the frontward direction of the listening position. In order to correct the asymmetry of the sound field, a crosstalk signal obtained by correcting the phase and the level of an acoustic signal of the left-channel from an acoustic signal source and a crosstalk adjustment signal obtained by correcting the level of the acoustic signal of the left-channel are fed to the right loudspeaker, or a center loudspeaker disposed between the left and right loudspeakers, together with an acoustic signal of the right-channel from the acoustic signal source. Similarly, a crosstalk signal obtained by correcting the phase and the level of an acoustic signal of the right-channel and a crosstalk adjustment signal obtained by correcting the level of the acoustic signal of the right-channel are fed to the left or center loudspeaker together with the acoustic signal of the left-channel from the acoustic signal source.

REFERENCES:
patent: 3170991 (1965-02-01), Glasgal
patent: 4121059 (1978-10-01), Nakabayashi
patent: 4149036 (1979-04-01), Okamoto et al.
patent: 4329544 (1982-05-01), Yamada
patent: 4622691 (1986-11-01), Tokumo et al.
patent: 4866776 (1989-09-01), Kasai et al.
patent: 4953219 (1990-08-01), Kasai et al.
patent: 4980914 (1990-12-01), Kunugi et al.
patent: 5040219 (1991-08-01), Ando et al.
patent: 5040220 (1991-08-01), Iwamatsu
patent: 5068897 (1991-11-01), Yamato et al.
patent: 5109415 (1992-04-01), Ishida
patent: 5129004 (1992-07-01), Imai et al.
Hans-Jaochim HAASE, `Manipulationen zwischen Weidergabakanalen`, Funk-Technik, 1986, magazine 12, pp. 526-530.

Affiliated with

Also associated with

Rating

Apparatus for expanding and controlling sound fields does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for expanding and controlling sound fields, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for expanding and controlling sound fields will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-731283