Method and apparatus for encoding digital signals employing bit

Details Method and apparatus for encoding digital signals employing bit Method and apparatus for encoding digital signals employing bit

1997-04-16

1999-12-28

Hudspeth, David R.

Data processing: speech signal processing, linguistics, language

Audio signal bandwidth compression or expansion

With content reduction encoding

704229, 704230, G10L 704

Patent

active

060093994

ABSTRACT:
A method for encoding a digitized audio signal which includes the step of selecting one of two or more psycho acoustic model provided for generating masking thresholds used in a data reduction process. The selecting criterion is the available data rate for the encoded bit stream. Each one of the two or more psycho acoustic models is adapted to a specific data rate of the encoded bit stream. In a second embodiment, the method includes the step of combining two or more masking thresholds resulting from different psycho acoustic models, thereby leading to a more accurate calculation of a masking threshold for the data reduction process. Further, there are appropriate apparatuses for the encoding of digitized audio signals.

REFERENCES:
patent: 4516258 (1985-05-01), Ching et al.
patent: 4899384 (1990-02-01), Crouse et al.
patent: 5608713 (1997-03-01), Akagiri et al.
Stark, Introduction to Numerical Methods, MacMillan 273-278, 1970.
International Standard ISO/IEC 11172-3:1993, p.6 Aug. 1, 1993.
Copy of the Search Report.

Affiliated with

Also associated with

Rating

Method and apparatus for encoding digital signals employing bit 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 and apparatus for encoding digital signals employing bit , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for encoding digital signals employing bit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2389518