MATLAB Computation of Sound Pressure Level

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F05%3APU52071" target="_blank" >RIV/00216305:26220/05:PU52071 - 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

MATLAB Computation of Sound Pressure Level

Original language description

This paper presents the Matlab computation of sound pressure level. For the determination of sound pressure level in the MATLAB program the more powerful version was chosen. In the theoretical equation a maximum is found from all spectral lines in each subband, and one pressure level is given by scalefactors. In fact, it means two loops: the first is performing a search through the spectral lines in each subband, the second is just searching through subbands comparing an appropriate pressure level and the maximum from the first loop. In this section of the program, only one loop can be seen. It is just the first step out of two, the second consists in comparing the pressure level at the end of the psychoacoustic model, which has been obtained by calc ulating the SNR (Signal-to-noise ratio). This procedure is more powerful because one loop is spared.

Czech name

Výpočet úrovně tlaku zvuku pomocí MATLAB

Czech description

This paper presents the Matlab computation of sound pressure level. For the determination of sound pressure level in the MATLAB program the more powerful version was chosen. In the theoretical equation a maximum is found from all spectral lines in each subband, and one pressure level is given by scalefactors. In fact, it means two loops: the first is performing a search through the spectral lines in each subband, the second is just searching through subbands comparing an appropriate pressure level and the maximum from the first loop. In this section of the program, only one loop can be seen. It is just the first step out of two, the second consists in comparing the pressure level at the end of the psychoacoustic model, which has been obtained by calc ulating the SNR (Signal-to-noise ratio). This procedure is more powerful because one loop is spared.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JA - Electronics and optoelectronics

OECD FORD branch

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Project

<a href="/en/project/GA102%2F03%2F0560" target="_blank" >GA102/03/0560: New methods of providing and monitoring auality of services in next generation networks</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2005

Confidentiality

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

Name of the periodical

WSEAS Transactions on Signal Processing

ISSN

1790-5022

e-ISSN

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Volume of the periodical

3

Issue of the periodical within the volume

1

Country of publishing house

GR - GREECE

Number of pages

8

Pages from-to

369-376

UT code for WoS article

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EID of the result in the Scopus database

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