DocumentCode
2449668
Title
Optimization of AMR Speech Codec on ARMv5E Platform
Author
Jiang, Chunlin ; Zhang, Lizhuo ; Gu, Ke ; Jia, Weijia
Author_Institution
Sch. of Inf. Sci. & Eng., Central South Univ., Changsha, China
fYear
2010
fDate
6-10 Dec. 2010
Firstpage
615
Lastpage
619
Abstract
This paper introduces AMR (Adaptive Multi Rate) codec algorithm and the basic characteristics of ARM architecture, and focus on the optimization methods of AMR algorithm based on ARM platform, making use of ARMv5E core hardware features. Firstly the CPU usage rate of AMR key functions are analyzed, then two methods including inline optimization and assembly optimization are discussed, finally optimization result is verified through experiment in smart phones. Experiments prove that the running speed of optimized code have been significantly increased in ARM core smart phones.
Keywords
optimisation; reduced instruction set computing; speech codecs; speech coding; AMR speech codec optimization; ARM architecture; ARM core smart phones; ARMv5E core hardware features; ARMv5E platform; CPU usage rate; adaptive multirate codec algorithm; advanced RISC machine; assembly optimization; inline optimization; Conferences; AMR codec; ARMv5E core; optimization;
fLanguage
English
Publisher
ieee
Conference_Titel
Services Computing Conference (APSCC), 2010 IEEE Asia-Pacific
Conference_Location
Hangzhou
Print_ISBN
978-1-4244-9396-8
Type
conf
DOI
10.1109/APSCC.2010.28
Filename
5708629
Link To Document