Method for automatically adjusting audio response for improved i

Details Method for automatically adjusting audio response for improved i Method for automatically adjusting audio response for improved i

1996-04-04

1998-08-04

Isen, Forester W.

Electrical audio signal processing systems and devices

Monitoring of sound

Amplification control responsive to ambient sound

381103, 381107, H03G 320

Patent

active

057906718

ABSTRACT:
Intelligibility of received speech in a radio receiver is improved by automatically adjusting audio response in accordance with ambient noise levels. When high ambient noise is present, the relative gain of the higher audio frequencies is increased at the expense of low frequency response. In this instance, some "naturalness" is traded for the higher intelligibility provided by increased high frequency gain. The ambient noise level is determined based on either a volume level or a direct sample of ambient noise by a microphone. An audio response message is built in accordance with the ambient noise level, and a digital signal processor adjusts the audio response of the radio receiver in accordance with the audio response message.

REFERENCES:
patent: 4454609 (1984-06-01), Kates
patent: 4790018 (1988-12-01), Preves et al.
patent: 4868881 (1989-09-01), Zwicker et al.
patent: 4941179 (1990-07-01), Bergenstoff et al.
patent: 5138665 (1992-08-01), Ito
patent: 5172417 (1992-12-01), Iwamura
patent: 5450494 (1995-09-01), Okubo et al.
patent: 5459813 (1995-10-01), Klayman
patent: 5509081 (1996-04-01), Kuusama
Electronic Communications, Second Edition, Dennis Roddy and John Coolen, Authors, Lakehead University, Thunder Bay, Ontario, Canada, pp.84-86.

Affiliated with

Also associated with

Rating

Method for automatically adjusting audio response for improved i does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for automatically adjusting audio response for improved i, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for automatically adjusting audio response for improved i will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1186941