Sound field correcting method in audio system

Details Sound field correcting method in audio system Sound field correcting method in audio system

2006-06-27

2006-06-27

Le, Huyen (Department: 2644)

Electrical audio signal processing systems and devices

Including frequency control

C381S103000, C381S101000, C381S102000, C381S107000, C381S108000

Reexamination Certificate

active

07068799

ABSTRACT:
In correcting the sound field, the loudspeakers6FLto6WFare sounded by the noise. The attenuation factors of the inter-band attenuators ATF11to ATFkifor adjusting gains of the band-pass filters BPF11to BPFkito the frequency in respective channels are corrected based on detection results of the reproduced sounds of the loudspeakers6FLto6WF. Then, the attenuation factors of the channel-to-channel attenuators ATG1to ATG5are corrected based on the detection results of the reproduced sounds of the loudspeakers6FLto6WF. Then, the delay times of the delay circuits DLY1to DLY5are corrected based on the detection results of the reproduced sounds of the loudspeakers6FLto6WF. Then, the attenuation factor of the channel-to-channel attenuator ATGkis corrected based on the detection result of the reproduced sound of the loudspeaker6WFas the subwoofer, whereby the levels of the reproduced sounds reproduced by the loudspeakers6FLto6WFare adjusted to be made flat over the audio frequency band.

REFERENCES:
patent: 4408095 (1983-10-01), Ariga et al.
patent: 4984273 (1991-01-01), Aylward et al.
patent: 5386478 (1995-01-01), Plunkett
patent: 5506910 (1996-04-01), Miller et al.
patent: 5581621 (1996-12-01), Koyama et al.
Patent Abstract of Japan 10136498, May 22, 1998, Fuji Photo Film Co., Ltd.

Affiliated with

Also associated with

Rating

Sound field correcting method in audio system 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 correcting method in audio system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sound field correcting method in audio system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3709915