641 search results - page 87 / 129 » Spectral Audio Signal Processing |
109
Voted
ICASSP
2010
IEEE
15 years 2 months ago
2010
IEEE
Nonnegative matrix factorization (NMF) is a widely-used tool for obtaining low-rank approximations of nonnegative data such as digital images, audio signals, textual data, financ...
200
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ICASSP
2011
IEEE
14 years 6 months ago
2011
IEEE
We propose a new statistical model, named Hierarchical Topic Trajectory Model (HTTM), for acquiring a dynamically changing topic model that represents the relationship between vid...
142
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ICASSP
2011
IEEE
14 years 6 months ago
2011
IEEE
Gaussian mixture models (GMMs) are commonly used to model the spectral distribution of speech signals for text-independent speaker verification. Mean vectors of the GMM, used in c...
130
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AVSS
2007
IEEE
15 years 8 months ago
2007
IEEE
This paper describes an audio-based video surveillance system which automatically detects anomalous audio events in a public square, such as screams or gunshots, and localizes the...
133
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ICASSP
2011
IEEE
14 years 6 months ago
2011
IEEE
Non-negative Matrix Factorization (NMF) has found use in single channel separation of audio signals, as it gives a parts-based decomposition of audio spectrograms where the parts ...