5.3.2 PCM binary format

This is a file format that represents audio waveforms in the PCM format. It is used when a temporal waveform of a separation sound is saved in a file. Each sampling value is indicated in 16-bit or 24 bit signed integer in little endian and additional information such as headers is not used. In HARK  , SaveRawPCM outputs in this format and the standard extension is .sw. Acoustic waveforms with multiple channels are expressed being multiplexed in channels. Therefore, when the user wishes to read or write a file in this format in other programs, the file must be converted into wav files with sox or appropriate sampling frequency, track numbers and quantization bit rate must be designated.