AUDIO CODING SYSTEM USING SPECTRAL HOLE FILLING
Application 1745/KOLNP/2004 published 2006-07-07, filed 2004-11-18
Audio coding processes like quantization can cause spectral components of an encoded audio signal to be set to zero, creating spectral holes in the signal. These spectral holes can degrade the perceived quality of audio signals that are reproduced by audio coding systems. An improved decoder avoids or reduces the degradation by filling the spectral holes with synthesized spectral components. An improved encoder may also be used to realize further improvements in the decoder. (FIG.9)
Applicant
DOLBY LABORATORIES LICENSING CORPORATION
100 POTRERO AVENUE, SAN FRANCISCO, CA 94103-4813, UNITED STATES OF AMERICA
Inventor
TRUMAN MICHAEL MEAD; DAVIDSON GRANT ALLEN; FELLERS MATTHEW CONRAD; VINTON MARK STUART; WATSON MATTHEW AUBREY; ROBINSON CHARLES QUITO
International Info
Classification: G10L 19/02
Publication Number: WO 03/107328
Application Date: 2003-05-30
Priority Information
10/174,493 USA 2002-06-17