- Tytuł:
- Novel Ideas for Lossless Audio Coding
- Autorzy:
-
Ulacha, G.
Stasiński, R. - Powiązania:
- https://bibliotekanauki.pl/articles/227339.pdf
- Data publikacji:
- 2013
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
Lossless Audio Coding
context coding
LS predictors
MMSE
MMAE
zero-order entropy - Opis:
- Novel ideas for lossless audio coding analyzed in the paper are linked with forward predictor adaptation, and concern optimization of predictors on the basis of zero-order entropy and MMAE criterions, and context sound coding. Direct use of the former criterion is linked with exponential growth of optimization procedure, hence, a suboptimal algorithm having polynomial complexity is proposed. It is shown that on average the new types of predictors are better than those obtained by MMSE technique, while two- and three context systems are on average better than a single predictor one. It also appears that 7-bit PARCOR coefficients in the MPEG-4 ALS standard have insufficient precision for some predictor length, and that for very long frames coding results improve with the predictor rank practically in unlimited way.
- Źródło:
-
International Journal of Electronics and Telecommunications; 2013, 59, 1; 17-23
2300-1933 - Pojawia się w:
- International Journal of Electronics and Telecommunications
- Dostawca treści:
- Biblioteka Nauki
Artykuł