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KY. HO. Bang, KE. SU. Lee, YO. CH. Park, and DA. HE. Youn, "Fast Bit Allocation Method for MP3/AAC Encoders," Paper 6381, (2005 May.). doi: KY. HO. Bang, KE. SU. Lee, YO. CH. Park, and DA. HE. Youn, "Fast Bit Allocation Method for MP3/AAC Encoders," Paper 6381, (2005 May.). doi:
Abstract: In MP3/AAC encoders, the quantization parameter called scalefactor controls the quantization noise and the bitrate. Tuning these encoders would require a characterization of the rate-distortion function per subband, which seems to be available only in a parametric manner. In this paper, a fast bit allocation method for MP3/AAC encoder is presented. The resulting encoder is able to produce an ISO/MPEG compliant bitstream which can guarantee better audio quality. More importantly, the number of computational steps is greatly reduced as compared to the method recommended by the ISO/MPEG committee because the efficient bit allocation algorithm significantly reduces the number of iterations required. It was found that the efficient bit allocation algorithm works best when the bit rate demanded by the psychoacoustic model in order to keep the quantization noise below the masking threshold is almost equal to the operational bit rate.

@article{bang2005fast,
author={bang, kyoung ho and lee, keup sup and park, young cheol and youn, dae hee},
journal={journal of the audio engineering society},
title={fast bit allocation method for mp3/aac encoders},
year={2005},
volume={},
number={},
pages={},
doi={},
month={may},} @article{bang2005fast,
author={bang, kyoung ho and lee, keup sup and park, young cheol and youn, dae hee},
journal={journal of the audio engineering society},
title={fast bit allocation method for mp3/aac encoders},
year={2005},
volume={},
number={},
pages={},
doi={},
month={may},
abstract={in mp3/aac encoders, the quantization parameter called scalefactor controls the quantization noise and the bitrate. tuning these encoders would require a characterization of the rate-distortion function per subband, which seems to be available only in a parametric manner. in this paper, a fast bit allocation method for mp3/aac encoder is presented. the resulting encoder is able to produce an iso/mpeg compliant bitstream which can guarantee better audio quality. more importantly, the number of computational steps is greatly reduced as compared to the method recommended by the iso/mpeg committee because the efficient bit allocation algorithm significantly reduces the number of iterations required. it was found that the efficient bit allocation algorithm works best when the bit rate demanded by the psychoacoustic model in order to keep the quantization noise below the masking threshold is almost equal to the operational bit rate.},}

TY - paper
TI - Fast Bit Allocation Method for MP3/AAC Encoders
SP - EP -
AU - Bang, Kyoung Ho
AU - Lee, Keup Sup
AU - Park, Young Cheol
AU - Youn, Dae Hee
PY - 2005
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - May 2005 TY - paper
TI - Fast Bit Allocation Method for MP3/AAC Encoders
SP - EP -
AU - Bang, Kyoung Ho
AU - Lee, Keup Sup
AU - Park, Young Cheol
AU - Youn, Dae Hee
PY - 2005
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - May 2005
AB - In MP3/AAC encoders, the quantization parameter called scalefactor controls the quantization noise and the bitrate. Tuning these encoders would require a characterization of the rate-distortion function per subband, which seems to be available only in a parametric manner. In this paper, a fast bit allocation method for MP3/AAC encoder is presented. The resulting encoder is able to produce an ISO/MPEG compliant bitstream which can guarantee better audio quality. More importantly, the number of computational steps is greatly reduced as compared to the method recommended by the ISO/MPEG committee because the efficient bit allocation algorithm significantly reduces the number of iterations required. It was found that the efficient bit allocation algorithm works best when the bit rate demanded by the psychoacoustic model in order to keep the quantization noise below the masking threshold is almost equal to the operational bit rate.