一个高质量的数字音频压缩算法
An Algorithm for Coding of High Digital Audio
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摘要: 提出一个具有实时性能的改进型DCT算法,并将改进型DCT与混合滤波器组相结合,给出了一个高质 量音频压缩算法。该算法增加了滤波变换块长度的自适应特性并更接近于人耳的滤波特性。Abstract: An enhanced DCTalgorithmwith real-time characteristics is put forward; and a coding algorithm of high quality is obtained by combining the enhanced DCT and a hybrid filter-bank. The proposed coding algorithm improves the adaptability of the filtering transform block length, the filtering properties produced bywhich are more analogous to that of humans’ears.
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Key words:
- psychoacustics /
- coding /
- filter /
- algorithm /
- discrete cosine transformation
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