Suppression of perceived occlusion

Details Suppression of perceived occlusion Suppression of perceived occlusion

2006-04-18

2006-04-18

Ni, Suhan (Department: 2646)

Electrical audio signal processing systems and devices

Hearing aids, electrical

Frequency transposition

C381S312000

Reexamination Certificate

active

07031484

ABSTRACT:
A fitting method is provided for a multichannel hearing aid with at least one low frequency channel having an individually adjustable compressor. The method comprises the steps of first adjusting the characteristic of the compressor according to the hearing loss to be compensated by the hearing aid, followed by the step of increasing the compression ratio of the characteristic of the compressor in the at least one low frequency band. The at least one low frequency channel may further comprise an offset amplifier adding an offset gain to the compressor characteristic, and the method may further comprise the step of adjusting the offset gain in the range from −20 dB to 20 dB. After adjustment according to the method, compressors operating at low frequencies enhance low level signals and attenuate high level signals whereby perception of occlusion is suppressed.

REFERENCES:
patent: 4852175 (1989-07-01), Kates
patent: 5500902 (1996-03-01), Stockham, Jr. et al.
patent: 6240192 (2001-05-01), Brennan et al.
patent: 6873709 (2005-03-01), Hou
patent: 2002/0118851 (2002-08-01), Paludan-Mueller
patent: WO 98/47313 (1998-10-01), None
patent: WO 98/56210 (1998-12-01), None
Lunner et al: “A Digital Filterbank Hearing Aid Design, Implementation and Evaluation” International Conference on Acoustics, Speech & Signal Processing. ICASSP, US, New York, IEEE,vol. CONF. 16, May 14, 1991, pp. 3661-3664.

Affiliated with

Also associated with

Rating

Suppression of perceived occlusion does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Suppression of perceived occlusion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Suppression of perceived occlusion will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3566308