Wyniki wyszukiwania - BazTech

Ograniczanie wyników

1 International Journal of Electronics and Telecommunications

1 2013

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: MMAE

Sortuj według:

Ogranicz wyniki do:

Novel Ideas for Lossless Audio Coding

Ulacha G., Stasiński R.

International Journal of Electronics and Telecommunications

2013

Vol. 59, No. 1

17-23

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.