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Noise Shaping in Time-Domain Quantized LFM

SDM binary code can be derived from linear frequency modulation (LFM) using zero crossing detection and time-domain quantization. However, the jitter-like nature of this quantization process does not generally yield well-structured noise shaped characteristics compared to conventional time domain coders. The problem of improving the frequency domain performance of the error resulting from a LFM-based model is studied and further observations are made on the relationship between SDM and quantized LFM.

Author: Hawksford, Malcolm J.
Affiliation: University of Essex
AES Convention:119 (October 2005) Paper Number:6617 Import into BibTeX
Subject:Hi Resolution Audio & Psychoacoustics, Perception, Listening Tests

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