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 companding
LastModified: Monday, March 31, 2003 

Formed from the words compressing and expanding. A PCM compression technique where analog signal values are rounded on a non-linear scale. The data is compressed before sent and then expanded at the receiving end using the same non-linear scale. Companding reduces the noise and crosstalk levels at the receiver.
 
related categories:

Multiplexing

Telecommunications
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analog

compression

crosstalk

pulse code modulation
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