Using of Wavelet Transformation in Signal Processing of Acoustical Signals

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F02%3A02077404" target="_blank" >RIV/68407700:21230/02:02077404 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Using of Wavelet Transformation in Signal Processing of Acoustical Signals

Original language description

An experimental method described here is very similar to the technique of violin playing termed "pizzicato". A violin is placed horizontally on two supports with its string down. Small mass hangs from its string in a standard playing position. After releasing, the transient response is picked up by a Brüel&Kjar 4374 accelerometer placed on the back plate opposite to the bridge. For the first set of measurements a measuring card ADSP2115 was used for recording signals; for the second set of measurement'sa Brüel&Kjar 2825 PULSE. A number of tests proved the reproducibility of excitation end measurement. Several violins of different quality were measured. Data were processed in a system MATLAB. STFT and Wavelet Transform were used for calculation of frequency spectrum and wavelet map. Characteristics which could be important for a tonal quality of a violin have also been noted.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

BI - Acoustics and oscillation

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2002

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Proceedings of Workshop 2002

ISBN

80-01-02511-X

ISSN

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e-ISSN

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Number of pages

2

Pages from-to

176-177

Publisher name

ČVUT

Place of publication

Praha

Event location

Praha

Event date

Feb 11, 2002

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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