Bit allocation method in subband coding

Details Bit allocation method in subband coding Bit allocation method in subband coding

1993-04-30

1995-12-26

MacDonald, Allen R.

395 239, G10L 900

Patent

active

054795613

ABSTRACT:
The present invention relates to subband coding of an audio signal, and more particularly to a bit allocation method by consecutively increasing, one-by-one, the bits allocated to each subband, so that the bit difference between subbands can be decreased, thereby simplifying hardware. By allocating bits one-by-one in this fashion, the present invention is able to enhance coding efficiency and avoid the prior art drawback of needing two separate allocation algorithms. Moreover, in the present invention, after finishing the bit allocation, subbands whose allocated number of bits are "one" are searched for and then their bits are reallocated to other subbands, thereby further increasing the bit-utilization ratio.

REFERENCES:
patent: 4516258 (1985-07-01), Ching et al.
patent: 4896362 (1990-01-01), Veldhuis et al.
patent: 5105463 (1992-04-01), Veldhuis et al.
patent: 5214741 (1993-05-01), Akamine et al.
patent: 5365553 (1994-11-01), Veldhuis et al.
patent: 5367608 (1994-11-01), Veldhuis et al.

Affiliated with

Also associated with

Rating

Bit allocation method in subband coding does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Bit allocation method in subband coding, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bit allocation method in subband coding will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1375499