Experimental Audio Coder: Testing Implementation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F08%3A03147110" target="_blank" >RIV/68407700:21230/08:03147110 - 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
Experimental Audio Coder: Testing Implementation
Original language description
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.
Czech name
Experimentální zvukový kodér: testovací implementace
Czech description
Experimentální zvukový kodér: testovací implementace

Publication year
2008
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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