• 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