TY - JOUR
T1 - A semi-open-loop coding mode selection algorithm based on EFM and selected AMR-WB+ features
AU - Hong, Ying
AU - Zhao, Shenghui
AU - Kuang, Jingming
PY - 2009/2
Y1 - 2009/2
N2 - To solve the problems of the AMR-WB+ (Extended Adaptive Multi-Rate-WideBand) semi-open-loop coding mode selection algorithm, features for ACELP (Algebraic Code Excited Linear Prediction) and TCX (Transform Coded eXcitation) classification are investigated. 11 classifying features in the AMR-WB+ codec are selected and 2 novel classifying features, i.e., EFM (Energy Flatness Measurement) and stdEFM (standard deviation of EFM), are proposed. Consequently, a novel semi-open-loop mode selection algorithm based on EFM and selected AMR-WB+ features is proposed. The results of classifying test and listening test show that the performance of the novel algorithm is much better than that of the AMR-WB+ semi-open-loop coding mode selection algorithm.
AB - To solve the problems of the AMR-WB+ (Extended Adaptive Multi-Rate-WideBand) semi-open-loop coding mode selection algorithm, features for ACELP (Algebraic Code Excited Linear Prediction) and TCX (Transform Coded eXcitation) classification are investigated. 11 classifying features in the AMR-WB+ codec are selected and 2 novel classifying features, i.e., EFM (Energy Flatness Measurement) and stdEFM (standard deviation of EFM), are proposed. Consequently, a novel semi-open-loop mode selection algorithm based on EFM and selected AMR-WB+ features is proposed. The results of classifying test and listening test show that the performance of the novel algorithm is much better than that of the AMR-WB+ semi-open-loop coding mode selection algorithm.
KW - Energy Flatness Measurement (EFM)
KW - Features selection
KW - Semi-open-loop coding mode selection
KW - Speech/Audio
UR - http://www.scopus.com/inward/record.url?scp=63449142678&partnerID=8YFLogxK
U2 - 10.1007/s11767-008-0094-8
DO - 10.1007/s11767-008-0094-8
M3 - Article
AN - SCOPUS:63449142678
SN - 0217-9822
VL - 26
SP - 274
EP - 278
JO - Journal of Electronics (China)
JF - Journal of Electronics (China)
IS - 2
ER -