Title :
Transformation from 512-point transform coefficients to 256-point transform coefficients for Dolby AC-3 decoder
Author :
Lee, Szu-Wei ; Liu, Chi-Min
Author_Institution :
Inst. of Comput. Sci. & Inf. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
fDate :
9/16/1999 12:00:00 AM
Abstract :
The Dolby AC-3 standard defines 512-point and 256-point transforms to provide high audio quality when signals rapidly change in time. This authors provide theoretical derivations and proofs for the transformation from 512-point transform coefficients to 256-point transform coefficients
Keywords :
audio signal processing; decoding; transforms; Dolby AC-3 decoder; audio quality; rapidly-changing signals; transform coefficients;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19991100
