Title:
知覚符号化システムのサブバンドに波形予測を適用する装置及び方法
Document Type and Number:
Japanese Patent JP4033898
Kind Code:
B2
Abstract:
A split-band perceptual coding system utilizes generalized waveform predictive coding in frequency bands to further reduce coded signal information requirements. The system including frequency subband each having a bandwidth commensurate with or less than a corresponding critical band of human perception. The order of the predictors are selected to balance requirements for prediction accuracy and rapid response time. Predictive coding may be adaptively inhibited in a band during intervals in which no predictive coding gain is realized.
Inventors:
Davis, Mark Franklin
Application Number:
JP52000596A
Publication Date:
January 16, 2008
Filing Date:
December 20, 1995
Export Citation:
Assignee:
DOLBY LABORATORIES LICENSING CORPORATION
International Classes:
G10L19/02; G10L19/035; G10L19/06; G10L19/16; G10L25/18; H03M7/30; H04B1/66; H04B3/04
Domestic Patent References:
| JP4504192A | ||||
| JP5506345A | ||||
| JP63500681A | ||||
| JP63127298A |
Attorney, Agent or Firm:
Yuzo Yamazaki
Kiko Okada
Kiko Okada