Results 241 to 250 of about 119,470 (290)

Real-world acoustic event detection

Pattern Recognition Letters, 2010
Acoustic Event Detection (AED) aims to identify both timestamps and types of events in an audio stream. This becomes very challenging when going beyond restricted highlight events and well controlled recordings. We propose extracting discriminative features for AED using a boosting approach, which outperform classical speech perceptual features, such ...
Xiaodan Zhuang, Xi Zhou, Mark A. Hasegawa-Johnson, Thomas S. Huang   +3 more
openaire   +1 more source

Feature selection for acoustic events detection

Multimedia Tools and Applications, 2013
The paper deals with the detection of abnormal situations via captured sound processing. Different settings of feature extraction algorithms were realized and evaluated. Chosen feature sets were used for building the effective parametric representation for gun shots and breaking glass.
Eva Kiktova-Vozarikova, Jozef Juhar, Anton Cizmar   +2 more
openaire   +1 more source

Acoustic detection of ice cracking events

2008 New Trends for Environmental Monitoring Using Passive Systems, 2008
With the growing concern in regard to melting ice caps there is a need of tracking iceberg calving events in the arctic seas. Acoustic detection of underwater signals is promising high sensitivity in this context and will supplement existing measurements with land based and underwater seismometers.
C. Waldmann, A. Nikolovska
openaire   +1 more source

Acoustic resonators for detecting low frequency events

The Journal of the Acoustical Society of America, 2023
Acoustic resonators and related concepts have long been the subject of research for acoustic filtering in free space or energy harvesting applications. In this work, we instead apply acoustic resonators to low frequency (< 50 Hz) non-contact bio-signal sensing within a vehicle cabin.
Paul Schmalenberg, Parveen Singh, Frederico Severgnini, Ercan Dede   +3 more
openaire   +1 more source