Title :
Analysis of Amplitude Quantization in ACELP Excitation Coding
Author :
Patchoo, Wisarn ; Fischer, Thomas R. ; Ahn, Changho ; Kang, Sangwon
Author_Institution :
Sch. of EECS, Washington State Univ., Pullman, WA, USA
Abstract :
Algebraic Code-Excited Linear Prediction (ACELP) is a popular linear prediction speech coding algorithm that provides good performance with reasonable implementation complexity, and requires low transmission bit rate. The excitation sequence is formed as the sum of two quantized excitations: an adaptive (pitch) codebook excitation and an algebraic (fixed) codebook excitation. Algebraic codevectors are sparse.
Keywords :
algebra; algebraic codes; linear predictive coding; speech coding; ACELP; adaptive codebook excitation; algebraic code-excited linear prediction; algebraic codebook excitation; algebraic codevectors; amplitude quantization; excitation coding; linear prediction speech coding; low transmission bit rate; Bit rate; Data analysis; Data compression; Distortion measurement; Partitioning algorithms; Prediction algorithms; Pulse measurements; Quantization; Speech coding; Speech synthesis;
Conference_Titel :
Data Compression Conference (DCC), 2010
Conference_Location :
Snowbird, UT
Print_ISBN :
978-1-4244-6425-8
Electronic_ISBN :
1068-0314
DOI :
10.1109/DCC.2010.52
