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Method and apparatus for wavelet based data compression having adaptive bit rate control for compression of audio information
Method and apparatus for wavelet based data compression having adaptive bit rate control for compression of audio information
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机译:用于基于小波的数据压缩的方法和装置,其具有用于音频信息的压缩的自适应比特率控制
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摘要
The 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 employs an approximation of a psychoacoustic model for wavelet packet decomposition and 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.
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