NDLI: Feature-map methods for extracting sound frequency modulation

Content Provider	IEEE Xplore Digital Library
Author	Mellinger, D.K.
Copyright Year	1991
Description	Author affiliation: Dept. of Comput. Sci., Stanford Univ., CA, USA (Mellinger, D.K.)
Abstract	The role of frequency modulation (FM) in the auditory system is investigated. Psychoacoustic evidence shows that FM is a cue for noncontextual auditory scene analysis, and neurophysiological evidence shows that it is detected by neurons in some animal auditory systems. Some filters for detecting FM in sound are presented. One method uses correlation of a kernel with a time-frequency representation of cochlear neural impulses of a sound to reveal its FM components. Another correlation method is based on detecting FM in channel-by-channel autocorrelation images, with some data reduction and sharpening applied. The filters are tuned for various spatiotemporal frequencies to extract information about sound with various FM characteristics, producing maps showing time-frequency points at which the features are present. These maps can allow another process to decide what sources are present or to use FM cues for pattern recognition.
Starting Page	795
Ending Page	799
File Size	387813
Page Count	5
File Format	PDF
ISBN	0818624701
ISSN	10586393
DOI	10.1109/ACSSC.1991.186556
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1991-11-04
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Feature extraction Frequency modulation Auditory system Filters Time frequency analysis Psychology Image analysis Neurons Animals Kernel
Content Type	Text
Resource Type	Article
Subject	Signal Processing Computer Networks and Communications

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