Efficient Coding Translation of GSM and G.729 Speech Coders across Mobile and IP Networks(Speech and Hearing)

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概要

• 論文の詳細を見る

• In this paper, we propose a speech coding translation scheme by transferring coding parameters between GSM half rate and G.729 coders. Compared to the conventional decode-then-encode (DTK) scheme, the proposed parameter conversions provide speech interoperability between mobile and IP networks with reducing computational complexity and coding delay. Simulation results show that the proposed methods can reduce about 30% computational load and coding delay acquired in the target encoders and achieve almost imperceptible degradation in performance.

• 社団法人電子情報通信学会の論文
• 2004-02-01

著者

• WANG Jhing-Fa

  Department of Electrical Engineering, National Cheng Kung University

• Wang J‐f

  Phi Tau Phi Twn

• Wang Jhing-fa

  Department Of Electrical Engineering National Cheng Kung University

• Wang Jia-ching

  Member Of Phi Tau Phi

• YANG Jar-Ferr

  Department of Electrical Engineering, National Cheng Kung University

• Yang Jar-ferr

  Department Of Electrical Engineering National Cheng Kung University

• TSAI Shu-Min

  Department of Electrical Engineering, National Cheng Kung University

• Tsai Shu-min

  Department Of Electrical Engineering National Cheng Kung University

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