发明授权
EP1259956B1 METHOD OF AND APPARATUS FOR CONVERTING AN AUDIO SIGNAL BETWEEN DATA COMPRESSION FORMATS 有权
方法和设备的音频信号之间的不同的数据压缩格式的转换

METHOD OF AND APPARATUS FOR CONVERTING AN AUDIO SIGNAL BETWEEN DATA COMPRESSION FORMATS
摘要:
Useful subband information which is present in a first audio signal (for example, MPEG 1 Layer II) is discarded in the conventional approach of format conversion, only to be regenerated when encoding to the target format (for example, MPEG 1 Layer III). Instead, in the present invention, this useful subband information is re-used directly or indirectly in order to eliminate the conventional requirement to fully decode to PCM and then encode again.
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