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Proceedings of 1994 28th Asilomar Conference on Signals, Systems and Computers (1994)
Pacific Grove, CA, USA
Oct. 31, 1994 to Nov. 2, 1994
ISSN: 1058-6393
ISBN: 0-8186-6405-3
pp: 933-937
C.S. Lindquist , Dept. of Electr. & Comput. Eng., Miami Univ., FL, USA
S.K. Mukherjee , Dept. of Electr. & Comput. Eng., Miami Univ., FL, USA
ABSTRACT
The procedure of first COMpressing and then exPANDing a signal is known as "companding". In pulse code modulation systems, commonly used in telephone switching networks, samples of an analog speech waveform are encoded as binary words and transmitted. Large dynamic range speech is most efficiently encoded and transmitted if the amplitude of the waveform is compressed before transmission and then expanded at the receiver. The paper describes a homomorphic approach to companding. It reviews and illustrates how these signals are processed and used in speech processing and communication networks.<>
INDEX TERMS
data compression, speech coding, compandors, digital filters, telephone networks, pulse code modulation
CITATION

C. Lindquist and S. Mukherjee, "A homomorphic approach to companding," Proceedings of 1994 28th Asilomar Conference on Signals, Systems and Computers(ACSSC), Pacific Grove, CA, USA, 1995, pp. 933-937.
doi:10.1109/ACSSC.1994.471597
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