Abstract
AbstractThis paper provides analysis of two‐dimensional radial μ‐law companding quantiser for quantisation and coding of a signal that has Laplacian distribution. Closed‐form expressions are obtained, both for the distortion and the bitrate of an output signal. An approximate expression for the required number of radial levels is also given, as well as an algorithm for computing its exact value. Complete procedure is demonstrated on a few numerical examples, and a comparison is performed with classical scalar μ‐law companding quantiser. It is shown that our model improves maximal SQNR value for 3.5 dB, and has narrower characteristics in a wide range of input signal power. Among many others, the application in the speech coding is described in details.Copyright © 2013 John Wiley & Sons, Ltd.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Transactions on Emerging Telecommunications Technologies
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
