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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。
In this paper, an improved DCT algorithm with real-time performance is proposed, and the improved DCT is combined with the hybrid filter bank to give a high-quality audio compression algorithm. The algorithm increases the adaptive length of filter transform block and is closer to the human ear filter.