音质控制的变速率音频编码算法
A VARIABLE BIT-RATE AUDIO CODING ALGORITHM CONTROLLED BY DESIRED QUALITY
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摘要: 该文设计了一种音质控制的变速率音频编码算法。这种算法可以按照不同等级的音质要求对音频信号进行量化编码，使编码速率在设定的音质下降为最小。
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关键词:
- 音频编码;音质模型;变速率;小波变换
Abstract: A variable bit-rate audio coding algorithm controlled by desired audio quality is designed. This algorithm can be used to minimize the bit-rate of audio coding at a given level of audio quality. -
Jayant N S, Noll P. Digital Coding of Waveforms: Principles and Applications to Speech and Video. Englewood Cliffs, New Jersey 07632: Prentice Hall, 1984,[2]Gersho A. Advances in speech and audio compression[J].Proc. IEEE.1994, 82(6):900-918[3]Hongfei Ma, Changxin Fan, Guoxiang Song. Wavelet transform coding of digital audio signals. Journal of Xidian University, 1997, 24(Sup): 1997.[4]Hongfei Ma, Changxin Fan, Guoxiang Song. Algorithm of adaptive bit allocation wavelet transform audio coding. Journal of China Institute of Communication, 1998, 19(5): 80-83.[5]Allen J B. Cochlear modeling[J].IEEE ASSP Magazine.1985, 2(1):3-29[6]Zwicker E. Subdivision of the audible frequency range into critical bands[J].J. Acoustical Society of America.1962, 33:248-248[7]ISO/IEC 11172-3. Information technology-Coding of moving pictures and associated audio for digital storage media at up to about 1.5 Mbit/s, part 3: Audio. Aug. 1993. -
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