Title :
A fast noise-scaling algorithm for uniform quantization in audio coding schemes
Author :
Serantes, Carlos A. ; Pena, Antonio S. ; Prelcic, Nuria G.
Author_Institution :
ETSE Telecomunicacion, Vigo Univ., Spain
Abstract :
A new bit assignment algorithm is presented. Its goals are the simultaneous assignment on all subbands in a few steps of an iterative calculus, the use of memory to achieve a better speed of convergence and the consideration of a deformable error curve. The basis of the algorithm is discussed and also other considerations that are likely to arise in practice. Finally, an example of its performance is given
Keywords :
audio coding; calculus; coding errors; convergence of numerical methods; error statistics; iterative methods; quantisation (signal); audio coding schemes; bit assignment algorithm; convergence speed; deformable error curve; fast noise scaling algorithm; iterative calculus; subbands assignment; uniform quantization; Audio coding; Bit rate; Convergence; Equations; Piecewise linear techniques; Solids;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1997. ICASSP-97., 1997 IEEE International Conference on
Conference_Location :
Munich
Print_ISBN :
0-8186-7919-0
DOI :
10.1109/ICASSP.1997.599642
