The HTK file format for waveforms is identical to that described in section 5.7 above. It consists of a 12 byte byte header followed by a sequence of 2 byte integer speech samples. For waveforms, the sampSize field will be 2 and the parmKind field will be 0. The sampPeriod field gives the sample period in 100ns units, hence for example, it will have the value 1000 for speech files sampled at 10kHz and 625 for speech files sampled at 16kHz.