Method for performing compression and extraction of wave form of music data, involves creating wave description between turning points consisting of waveform options within positive and negative phase

摘要

The method involves determining turning points within audio waveforms. The turning point value and wave description between two turning point locations are determined by pattern recognition in waveform compression. The wave description between two turning points consisting of waveform options within positive phase and waveform options within negative phase is created by rendering with interpolation for the approximate original waveform sequence.