DocumentCode
2686818
Title
Implementation of an adaptive delta modulation codec in speech record/playback chip
Author
Ning Bo ; Zhang Lingyun ; Chen Xi ; Chen Guican
Author_Institution
Inst. of Microelectron., Xi´an Jiaotong Univ., China
Volume
2
fYear
2003
fDate
21-24 Oct. 2003
Firstpage
938
Abstract
An adaptive delta modulation (ADM) codec has high adaptive efficiency and excellent noise immunity which is specially suited for speech coded system. This paper proposes a novel adaptive delta modulation speech codec, which reuses the same circuit for the step generator and the predict code generator by proper controlling in the different intervals, reducing the size of die and the power dissipation.
Keywords
delta modulation; microprocessor chips; speech codecs; ADM; adaptive delta modulation codec; high adaptive efficiency; noise immunity; predict code generator; speech coded system; speech playback chip; speech record chip; step generator;
fLanguage
English
Publisher
ieee
Conference_Titel
ASIC, 2003. Proceedings. 5th International Conference on
ISSN
1523-553X
Print_ISBN
0-7803-7889-X
Type
conf
DOI
10.1109/ICASIC.2003.1277365
Filename
1277365
Link To Document