Results 211 to 220 of about 2,740 (261)
Some of the next articles are maybe not open access.
5th European Conference on Speech Communication and Technology (Eurospeech 1997), 1997
We present in this paper preliminary results using speaker recognition and speech recognition techniques, designed at LIP6, to index audio data of video movies. The assumption that only one person is speaking at the same time is made. In a first approach, we work on dialogue unsupervised indexing using speaker recognition techniques.
Claude Montacié, Marie-José Caraty
openaire +3 more sources
We present in this paper preliminary results using speaker recognition and speech recognition techniques, designed at LIP6, to index audio data of video movies. The assumption that only one person is speaking at the same time is made. In a first approach, we work on dialogue unsupervised indexing using speaker recognition techniques.
Claude Montacié, Marie-José Caraty
openaire +3 more sources
Multi-channel Classification of Respiratory Sounds
2006 International Conference of the IEEE Engineering in Medicine and Biology Society, 2006In this study, respiratory sounds of pathological and healthy subjects were analyzed via frequency spectrum and AR model parameters with a view to construct a diagnostic aid based on auscultation. Each subject is represented by 14 channels of respiratory sound data of a single respiration cycle.
Cemile Asli Yilmaz, Yasemin P. Kahya
openaire +2 more sources
Multi-channel Environmental sound segmentation
2020 IEEE/SICE International Symposium on System Integration (SII), 2020This paper addresses multi-channel environmental sound segmentation. Unlike traditional sound source separation using spatial information, environmental sound segmentation is a technique that simultaneously detects, separates, and identifies sections based on the properties of previously learned sound sources.
Yui Sudo +3 more
openaire +1 more source
Attenuation in Randomly Inhomogeneous Sound Channels
The Journal of the Acoustical Society of America, 1974Estimates of the absorption of sound in sea water, based on sound channel experiments, can be seriously affected by scattering from random inhomogeneities in sound speed. Ray diffusion theory leads to an additional component of attenuation independent of frequency.
R. H. Mellen, D. G. Browning, J. M. Ross
openaire +1 more source
Sound channels in the atmosphere
Journal of Geophysical Research, 1963The mean temperature profile of the atmosphere indicates the probable existence of two horizontally distributed sound waveguides in the atmosphere. The lower one usually occurs between the surface and 50 km, and the upper between 50 and 110 km. Wind data above 30 km, which have become available recently through the use of meteorological rockets, have ...
openaire +1 more source
1982
The underwater sound channel (USC) is a typical natural waveguide. The types of ocean stratification leading to the formation of an USC have been given in Sect. 1.2. The theory of sound propagation in the USC is presented here.
Leonid M. Brekhovskikh, Yury P. Lysanov
openaire +1 more source
The underwater sound channel (USC) is a typical natural waveguide. The types of ocean stratification leading to the formation of an USC have been given in Sect. 1.2. The theory of sound propagation in the USC is presented here.
Leonid M. Brekhovskikh, Yury P. Lysanov
openaire +1 more source
Manufacturing an Erasure Wiretap Channel from Channel Sounding Measurements
2019 IEEE International Symposium on Information Theory (ISIT), 2019In this paper we provide a real-world test of physical-layer security using channel sounding techniques in an indoor wireless network. We consider the possibility of exploiting issues that arise in practical receivers to manufacture a discrete memoryless wiretap channel model from the Gaussian case, and show how the secrecy capacity of the Gaussian ...
Dakota Flanary +6 more
openaire +1 more source
Channel sounding realizations for indoor wireless communication
2015 23nd Signal Processing and Communications Applications Conference (SIU), 2015In this paper, a realization of an FFT based channel sounding technique and resulting channel functions depending on time, frequency and delay are presented. Practical measurements and computer simulations can provide useful information for wireless communication system designs.
Tasdemir, Elif +2 more
openaire +2 more sources
2006 European Microwave Conference, 2006
A novel approach using differential reception and nulling interferometry is devoted to weak Non Line Of Sight (NLOS) signals measurement. Performed either in the spatial domain or in the spectral domain, this method can achieve Line Of Sight (LOS) dimming, and then NLOS emphasis.
Bocquet, Michael +2 more
openaire +3 more sources
A novel approach using differential reception and nulling interferometry is devoted to weak Non Line Of Sight (NLOS) signals measurement. Performed either in the spatial domain or in the spectral domain, this method can achieve Line Of Sight (LOS) dimming, and then NLOS emphasis.
Bocquet, Michael +2 more
openaire +3 more sources
Compressive spatial channel sounding
12th European Conference on Antennas and Propagation (EuCAP 2018), 2018In this paper we investigate the application of Compressed Sensing (CS) to MIMO channel sounding in the spatial domain. A compressive spatial channel sounder is proposed and evaluated based on real scenarios showing advantages in terms of time, hardware complexity and resolution.
M. Ibrahim +6 more
openaire +1 more source