Sciweavers

ICASSP
2011
IEEE
12 years 8 months ago
Analysis of rate constraints for MWF-based noise reduction in acoustic sensor networks
In an acoustic sensor network, consisting of spatially distributed microphone nodes, a significant noise reduction can be achieved using the centralized multi-channel Wiener fil...
Toby Christian Lawin-Ore, Simon Doclo
ICASSP
2011
IEEE
12 years 8 months ago
Nonlinear properties of snoring sounds
In this paper, the Gaussianity and linearity of the snoring sound (SS) segments extracted from respiratory sounds are discussed. The respiratory sound signals were recorded from 3...
Ali Azarbarzin, Zahra Moussavi
ICASSP
2011
IEEE
12 years 8 months ago
Dynamic signal combining for distributed microphone systems in car environments
Distributed microphone systems in cars usually provide dedicated microphones for several speakers where each microphone captures the desired speech signal at the best. The signal ...
Timo Matheja, Markus Buck, Achim Eichentopf
IEEEIAS
2009
IEEE
13 years 2 months ago
Detection of Abnormal Sound Using Multi-stage GMM for Surveillance Microphone
We developed a system that detects abnormal sound from sound signal observed by a surveillance microphone. Our system learns the "normal sound" from observation of the m...
Akinori Ito, Akihito Aiba, Masashi Ito, Shozo Maki...
CORR
2008
Springer
93views Education» more  CORR 2008»
13 years 4 months ago
Design And Fabrication of Condenser Microphone Using Wafer Transfer And Micro-electroplating Technique
A novel fabrication process, which uses wafer transfer and micro-electroplating technique, has been proposed and tested. In this paper, the effects of the diaphragm thickness and s...
Zhen-Zhun Shu, Ming-Li Ke, Guan-Wei Chen, Ray Hua ...
COMPSEC
2010
93views more  COMPSEC 2010»
13 years 4 months ago
Roving bugnet: Distributed surveillance threat and mitigation
Abstract Advanced mobile devices such as laptops and smartphones make convenient hiding places for surveillance spyware. They commonly have a microphone and camera built-in, are in...
Ryan Farley, Xinyuan Wang
LREC
2008
134views Education» more  LREC 2008»
13 years 5 months ago
A Multi-sensor Speech Database with Applications towards Robust Speech Processing in hostile Environments
In this paper, we present a database with speech in different types of background noises. The speech and noise were recorded with a set of different microphones and including some...
Tomas Dekens, Yorgos Patsis, Werner Verhelst, Fr&e...
ICMCS
2005
IEEE
103views Multimedia» more  ICMCS 2005»
13 years 10 months ago
Speech Acquisition in Meetings with an Audio-Visual Sensor Array
Close-talk headset microphones have been traditionally used for speech acquisition in a number of applications, as they naturally provide a higher signal-to-noise ratio -needed fo...
Iain McCowan, Maganto Hari Krishna, Daniel Gatica-...
MLMI
2007
Springer
13 years 10 months ago
Microphone Array Beamforming Approach to Blind Speech Separation
In this paper, we present a microphone array beamforming approach to blind speech separation. Unlike previous beamforming approaches, our system does not require a-priori knowledge...
Ivan Himawan, Iain McCowan, Mike Lincoln
MMM
2008
Springer
75views Multimedia» more  MMM 2008»
13 years 11 months ago
Sound Source Localization with Non-calibrated Microphones
We propose a new method for localizing a sound source in a known space with non-calibrated microphones. Our method does not need the accurate positions of the microphones that are ...
Tomoyuki Kobayashi, Yoshinari Kameda, Yuichi Ohta