Title :
A two-channel approach to the removal of impulsive noise from archived recordings
Author :
Hicks, Christopher M. ; Godsill, Simon J.
Author_Institution :
Dept. of Eng., Cambridge Univ., UK
Abstract :
We discuss the extraction of two signals from a monophonic gramophone record, and observe that the impulsive noise is significantly different in the two. This, coupled with the redundancy of the desired parts of the signals, has great advantages in the processes of impulsive noise detection and removal. It is simple to obtain two suitable signals by using a stereo replay cartridge, and we develop detection and interpolation algorithms that use such a pair of signals. We present the results of computer simulations and informal listening tests on archive material. In both cases the two-channel method is found to be an improvement over a similar single-channel algorithm, with little change in computational cost
Keywords :
Hi-Fi equipment; acoustic signal detection; acoustic signal processing; audio equipment; audio recording; autoregressive processes; interpolation; noise abatement; archived recordings; computer simulations; detection algorithms; impulsive noise detection; impulsive noise removal; informal listening tests; interpolation algorithms; monophonic gramophone record; redundancy; signal extraction; stereo replay cartridge; two-channel method; Change detection algorithms; Computer hacking; Computer simulation; Interpolation; Laboratories; Materials testing; Noise level; Parameter estimation; Signal processing; Signal processing algorithms;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1994. ICASSP-94., 1994 IEEE International Conference on
Conference_Location :
Adelaide, SA
Print_ISBN :
0-7803-1775-0
DOI :
10.1109/ICASSP.1994.389681
