【摘要】 文中所提出的编码就是把小波应用于音频压缩编码的一种有效方案。这一方案把自适应小波包分解与人耳的听觉心理学模型相结合，充分利用人耳的掩蔽特性自适应地构造滤波器组，并采用零树算法进行比特分配，从而把由４４．１ｋＨｚ采样并以１６ｂｉｔ编码的音频信号压缩成大约４５ｋｂ／ｓ的接近ＣＤ音质的音频码流。更多还原

【Abstract】 The encoding mentioned in this paper is an effective method applied wavelet toaudio compression encoding. This method combines adaptive wavelet packet decomposition andauditory psychological model, takes full advantage of masking performance of ear to constructfilters set adaptively and allocates bits using zero tree algorithm. As a result, the audio signal16bits encoded and 44.1 kHz sampled has been compressed to approximately 45 kb/s audio bitstream approaching CD sound quality.更多还原