Title :
A fast audio bit allocation technique based on a linear R-D model
Author :
Chun-Yi Lee ; Yao-Chun Fang ; Hsiao-Chiang Chuang ; Chung-Neng Wang ; Tihao Chiang
Author_Institution :
Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
This paper describes a fast bit allocation technique using a novel linear model for the bit rate and the global gain of the inner loop in the classic MP3 bit allocation. The outer loop is approximated with a binomial expansion. Our technique is five times faster than the LAME MP3 encoder.
Keywords :
audio coding; data compression; polynomial approximation; rate distortion theory; MP3; binomial expansion; bit allocation; bit rate; global gain; inner loop; linear R-D model; linear model; outer loop approximation; Bit rate; Digital audio players; Distortion measurement; Encoding; Filter bank; Iterative methods; Nuclear magnetic resonance; Positron emission tomography; Psychoacoustic models; Quantization;
Conference_Titel :
Consumer Electronics, 2002. ICCE. 2002 Digest of Technical Papers. International Conference on
Conference_Location :
Los Angeles, CA, USA
Print_ISBN :
0-7803-7300-6
DOI :
10.1109/ICCE.2002.1014051
