Methods and apparatus for encoding/decoding speech signals at lo

Details Methods and apparatus for encoding/decoding speech signals at lo Methods and apparatus for encoding/decoding speech signals at lo

1995-04-28

1998-02-10

MacDonald, Allen R.

395 21, 395 214, 395 217, 395 228, 395 234, G01L 302

Patent

active

057178194

ABSTRACT:
A voice encoder for use in low bit rate vocoding applications employs a method of encoding a plurality of digital information frames. This method includes the step of providing an estimate of the digital information frame, which estimate includes a frame shape characteristic. Further, a fundamental frequency associated with the digital information frame is identified and used to establish a shape window. Lastly, the frame shape characteristic is matched, within the shape window, with a predetermined shape function to produce a plurality of shape parameters.

REFERENCES:
patent: 3740476 (1973-06-01), Atal et al.
patent: 4184049 (1980-01-01), Crochiere et al.
patent: 4797926 (1989-01-01), Bronson et al.
patent: 4899385 (1990-02-01), Ketchum et al.
patent: 5327520 (1994-07-01), Chen
patent: 5383184 (1995-01-01), Champion
patent: 5450449 (1995-09-01), Kroon

Affiliated with

Also associated with

Rating

Methods and apparatus for encoding/decoding speech signals at lo does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods and apparatus for encoding/decoding speech signals at lo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and apparatus for encoding/decoding speech signals at lo will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2084811