Title :
Compander systems with adaptive preemphasis/deemphasis using linear prediction
Author :
Holters, Martin ; Keiler, Florian ; Zölzer, Udo ; Peissig, Jürgen
Author_Institution :
Dept. of Signal Process. & Commun., Helmut-Schmidt-Univ., Hamburg, Germany
Abstract :
A new class of compander systems is proposed that combines conventional broad-band companders with adaptive filtering based on linear prediction. This allows not only for reduction, but also spectral shaping of noise induced e.g. in FM radio links. Evaluation using a simulation application shows a significant increase in perceived audio quality compared to conventional compander systems.
Keywords :
adaptive filters; compandors; FM radio links; adaptive deemphasis; adaptive filtering; adaptive preemphasis; broad-band companders; compander systems; linear prediction; perceived audio quality; spectral shaping; Acoustic noise; Adaptive filters; Adaptive systems; Dynamic range; Filtering; Finite impulse response filter; Frequency; Noise reduction; Noise shaping; Surface acoustic waves;
Conference_Titel :
Signal Processing Systems Design and Implementation, 2005. IEEE Workshop on
Print_ISBN :
0-7803-9333-3
DOI :
10.1109/SIPS.2005.1579944
