AN ENTROPY CODING METHOD OF CONDENSED FEATURE PARAMETERS FOR DISTRIBUTED VOICE RECOGNITION IN MARINE ENVIRONMENTS
摘要
PURPOSE: An entropy coding method of a compressed specific parameter for distribution voice recognition in marine environment is provided to add and transmit 10.07 bits as an error prevention bit, thereby preventing performance degradation of a distribution voice recognition system caused by packet loss during communication of the marine environment. CONSTITUTION: A distribution voice recognition system quantizes an MFCC(Mel Frequency Cepstral Coefficient) and log energy extracted in a corresponding frame. The distribution voice recognition system additionally compresses a sub-vector index of the MFCC and indexes of C0 and log-E sub-vector by using a Huffman table corresponding to voice classification of the frame. The system calculates differential information for the compressed index. The system applies differential Huffman coding to the differential information.
申请公布号
KR20130037039(A)
申请公布日期
2013.04.15
申请号
KR20110101358
申请日期
2011.10.05
申请人
MOKPO NATIONAL UNIVERSITY INDUSTRY-ACADEMIA COOPERATION GROUP
发明人
CHOI, MYEONG SOO;LEE, SEONG RO;LEE, YEON WOO;PYO, SE JUN;KIM, YONG GEUN;YANG, JUN CHEOL;CHEON, SUNG EUN;KIM, YEON OK