Experimentální zvukový kodér: testovací implementace

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Experimental Audio Coder: Testing Implementation

Popis výsledku v původním jazyce

This article results from the last year article at the conference, which designed structure of an experimental audio encoder. The designed structure was implemented by Matlab functions, each function represents one system block. Consequently was made testing implementation of a simple perceptual audio coder which respects structure that was designed in the article. Presented simple encoder substitutes psychoacoustic model by a static one which takes into account frequency dependency of the hearing threshold only. Masking effects are not considered by this static psychoacoustic model, which is not usual but demonstrative enough. Coding is performed in the frequency domain that is obtained by the Fast Fourier Transform. Frequency components are then re-quantized with a different bit-length according to the designed psychoacoustic model. Appropriate decoder was also implemented to prove correct function of the encoder.

Název v anglickém jazyce

Experimental Audio Coder: Testing Implementation

Popis výsledku anglicky

This article results from the last year article at the conference, which designed structure of an experimental audio encoder. The designed structure was implemented by Matlab functions, each function represents one system block. Consequently was made testing implementation of a simple perceptual audio coder which respects structure that was designed in the article. Presented simple encoder substitutes psychoacoustic model by a static one which takes into account frequency dependency of the hearing threshold only. Masking effects are not considered by this static psychoacoustic model, which is not usual but demonstrative enough. Coding is performed in the frequency domain that is obtained by the Fast Fourier Transform. Frequency components are then re-quantized with a different bit-length according to the designed psychoacoustic model. Appropriate decoder was also implemented to prove correct function of the encoder.

Druh

D - Stať ve sborníku

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

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

Název statě ve sborníku

Technical Computing Prague 2008

ISBN

978-80-7080-692-0

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

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Název nakladatele

Humusoft

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

11. 11. 2008

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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