Using of Wavelet Transformation in Signal Processing of Acoustical Signals

Kód výsledku v 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>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Using of Wavelet Transformation in Signal Processing of Acoustical Signals

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Using of Wavelet Transformation in Signal Processing of Acoustical Signals

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

BI - Akustika a kmity

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2002

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of Workshop 2002

ISBN

80-01-02511-X

ISSN

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e-ISSN

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Počet stran výsledku

2

Strana od-do

176-177

Název nakladatele

ČVUT

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

11. 2. 2002

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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