18 research outputs found
Event Synchronous Thumbnails: statistical properties
Large research efforts are devoted to the problem of music
summarization and thumbnailing [4-5-6-7-8-9]. The application
of these techniques are twofold, first application is to provide an
efficient summary of the analyzed music in order to provide
users with a first but short and efficient listening experience;
second application is to provide automatic means to search in
large music databases in order to identify music pieces.
Our Event Synchronous Wavelet Thumbnails may be used for
both purposes. They are based on the Event Synchronous
Wavelet Transform [1], a recent evolution of the Multiplexed
[3]and Pitch Synchronous Wavelet Transform [2] previously
introduced by one of the authors; they have been recently
proposed [1] in order to provide a comprehensive listening
experience of a piece, a sort of timbral flavour or musical
thumbnail; in this communication we will provide some results
on the use of these thumbnails for the task of identification and
search of music pieces in sound data bases.
Our thumbnails are obtained by means of the computation of the
Event Synchronous Wavelet Transform; a characterization of the
thumbnail may be done by using the wavelet coefficient
themselves or the MFCC or the LPC coefficient of the extracted
Thumbnail, and will be a point in a multidimensional parameter
space. Distance in this space or in a suitable projection of it will
provide a measure of similarity and then a basis for search and
identification. Some results in this direction confirm the starting
hypothesis of the significance of the proposed thumbnails for
identification purposes as well as for listening
Realizzazione di una stazione fissa per misure LIDAR sull’Etna
Realizzazione di una stazione fissa per misure LIDAR sull’EtnaPublished1-181.5. TTC - Sorveglianza dell'attività eruttiva dei vulcaniN/A or not JCRope
Experimental Evidence of a Neutron Flux Generation in a Plasma Discharge Electrolytic Cell
A substantial neutron flux generated by plasma excitation at the tungsten cathode of an electrolytic cell with alkaline solution is reported. A method based on a CR-39 nuclear track detector coupled to a boron converter was used to detect the neutrons. This method is insensitive to the strong plasma-generated electromagnetic noise that made inconclusive all the previous attempts to identify neutrons in electrolytic plasma environment by means of electric detection techniques.</jats:p