论文信息 - Very Low Bit Rate Audio Coding Development

Very Low Bit Rate Audio Coding Development

Audio coding at very low bit rates requires very efficient evaluation of characteristics of the signal sources and of perceptual properties of the human ear. An overview of models for the signal source employed in different coding schemes is given. Some of the basic concepts for perceptual quantization and coding of model parameters are shown, including approaches for scaleability with respect to bit rate and quality.

Bernd Edler

[1] Karlheinz Brandenburg. OCF--A new coding algorithm for high quality sound signals , 1987, ICASSP '87. IEEE International Conference on Acoustics, Speech, and Signal Processing.

[2] Hugo Fastl,et al. Psychoacoustics: Facts and Models , 1990 .

[3] Peter Noll. Speech coding for communications , 1993, EUROSPEECH.

[4] Marina Bosi,et al. Overview of MPEG audio : Current and future standards for low-bit-rate audio coding , 1997 .

[5] James David Johnston,et al. Enhancing the Performance of Perceptual Audio Coders by Using Temporal Noise Shaping (TNS) , 1996 .

[6] Takehiro Moriya,et al. Transform-Domain Weighted Interleave Vector Quantization (TwinVQ) , 1996 .

[7] Hendrik Fuchs. Improving MPEG Audio Coding by Backward Adaptive Linear Stereo Prediction , 1995 .