Title:
AUDIO DECODING PROCESSOR AND ERROR COMPENSATING DEVICE USED IN THE PROCESSOR
Document Type and Number:
Japanese Patent JP2003099096
Kind Code:
A
Abstract:
To prevent the occurrence of abnormal sound even though a miss occurs in error detection.
An audio decoding section 21 is used to decode spectrum data in a frame unit from audio coded data. In an error compensation section 23, a frame in which an error is detected by an error compensation section 23 and frames located in front of and the back of the frame are recognized as erroneous frames, an interpolating process is conducted for the error frames employing the data of a normal frame. The spectrum data outputted from the section 23 are successively converted from frequency region data to time region data and decoded audio data are outputted.
Inventors:
OSADA SHIYOUKO
Application Number:
JP2001293618A
Publication Date:
April 04, 2003
Filing Date:
September 26, 2001
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
G10L13/04; G10L13/00; G10L19/00; G10L19/005; G10L19/02; H03M7/30; H04B14/04; H04L1/00; (IPC1-7): G10L19/00; G10L13/00; H03M7/30; H04B14/04; H04L1/00
Attorney, Agent or Firm:
Takehiko Suzue (6 outside)