Codebook Segment Merging
AssigneeDigital Rise Technology Co., Ltd.
InventorYuli You
Life of this patent
Estimating the term…
Abstract
Provided are, among other things, systems, methods and techniques for merging entropy codebook application ranges within an audio signal. According to one embodiment, an audio signal is obtained, the audio signal including quantization indexes, identification of segments of said quantization indexes, and indexes of entropy codebooks that have been assigned to such segments, with a single entropy codebook index having been assigned to each said segment; potential merging operations in which specified segments potentially would be merged with each other are identified; bit penalties are estimated for the potential merging operations; then, the potential merging operation having the lowest estimated the penalty is performed.
Claims18
1-20. (canceled)
A method of merging entropy codebook application ranges within an audio signal, comprising:
- obtaining an audio signal that includes quantization indexes, identification of segments of said quantization indexes, and indexes of entropy codebooks that have been assigned to said segments, with a single entropy codebook index having been assigned to each said segment;
- identifying potential merging operations in which specified segments potentially would be merged with each other;
- estimating bit penalties for the potential merging operations;
- and
- performing the potential merging operation having the lowest estimated the penalty.
A computer-readable medium storing computer executable process steps for merging entropy codebook application ranges within an audio signal, said process steps comprising:
- obtaining an audio signal that includes quantization indexes, identification of segments of said quantization indexes, and indexes of entropy codebooks that have been assigned to said segments, with a single entropy codebook index having been assigned to each said segment;
- identifying potential merging operations in which specified segments potentially would be merged with each other;
- estimating bit penalties for the potential merging operations;
- and
- performing the potential merging operation having the lowest estimated the penalty.
An apparatus for merging entropy codebook application ranges within an audio signal, comprising:
- means for obtaining an audio signal that includes quantization indexes, identification of segments of said quantization indexes, and indexes of entropy codebooks that have been assigned to said segments, with a single entropy codebook index having been assigned to each said segment;
- means for identifying potential merging operations in which specified segments potentially would be merged with each other;
- means for estimating bit penalties for the potential merging operations;
- and
- means for performing the potential merging operation having the lowest estimated the penalty.
Dependencies are inferred from the claim text.