Hidden Markov Model Toolkit Audio

A Hidden Markov Model (HMM) is a statistical model used to predict the occurrence of unobservable events by analyzing their observable consequences. For example, speech recognition devices use HMMs to predict the words a person said (to the device, an unobservable event) given an audio recording of those words (a recorded consequence of the event).

Researchers use the Hidden Markov Model Toolkit to, among other things, fine-tune the HMMs that speech recognition devices use to interpret a person's speech. To do so, the researchers manipulate and experiment with audio files saved in the HTK file format. The HTK format was developed specifically for use with the Hidden Markov Model Toolkit, and it is the toolkit's default audio format.

HTK files are meant to be used to perform speech recognition analysis using the Hidden Markov Model Toolkit. You can download the toolkit for free online.

If you want to play the audio contained within an HTK file without using the Hidden Markov Model Toolkit, you can convert your HTK file to a standard audio format using SoX or FFmpeg . Then, you can play the converted file using a media player such as VLC media player .

Programs that open HTK files

Updated: August 26, 2020