A nist file extension is related to the audio file format used by Hidden Markov Model Toolkit.
Software that open nist file
NIST file extension - HTK NIST audio data
What is nist file? How to open nist files?
The nist file extension is associated with the audio data files stored in the 8, 16, 24, 32-bits PCM mono, or stereo sound format.
(Short ints,mono,NIST header:1024 byte, used in TIMIT)
NIST data are related to the HTK (Hidden Markov Model Toolkit) and SPHERE (Speech Header Resources).
The default software associated to open nist file:
Hidden Markov Model Toolkit (HTK) 
Hidden Markov Model Toolkit (HTK) is used for speech recognition research although it has been used for numerous other applications including research into speech synthesis, character recognition and DNA sequencing.
List of software applications associated to the .nist file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open nist file, edit nist file, convert nist file, view nist file, play nist file etc. (if exist software for corresponding action in File-Extensions.org's database).
Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting nist files.
Software that open nist file - HTK NIST audio data
Programs supporting the exension nist on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about Hidden Markov Model Toolkit (HTK) for open nist file action.
