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method and device for data compression based on wavelets with adaptive bit rate control for compression of digital audio or other sensory data
method and device for data compression based on wavelets with adaptive bit rate control for compression of digital audio or other sensory data
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机译：小波的数据压缩方法和装置，具有自适应比特率控制的数字音频或其他感觉数据的压缩
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摘要
The disclosed compression method utilizes a combination of both lossy and lossless compression to achieve significant compression while retaining very high subjective quality of the reconstructed or decompressed signal. Methods and apparatus for compression and decompression of digital audio data are provided. In one preferred embodiment, the compression method or apparatus has a bit rate control feedback loop particularly well suited to matching the output bit rate of the data compressor to the bandwidth capacity of a communication channel. Disclosed embodiments trade-off various error sources in order to keep perceptible distortion levels to a minimum for a fixed bit rate. Preferred embodiments also utilize a unique combination of run length and Huffman encoding methods in order to take advantage of both local and global statistics.
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