Convert nist to wma

What is the difference between .nist and .wma?

Description: SPHERE (SPeech HEader Resources) is a file format defined by NIST (National Institute of Standards and Technology) and is used with speech audio. SoX can read these files when they contain μ-law and PCM data. It will ignore any header information that says the data is compressed using shorten compression and will treat the data as either μ-law or PCM. This will allow SoX and the command line shorten program to be run together using pipes to encompasses the data and then pass the result to SoX for processing.; A WMA file is an audio file saved in the Advanced Systems Format (ASF) proprietary format developed by Microsoft. It contains Windows Media Audio and metadata objects such as the title, artist, album, and genre of the track. WMA files are similar to .MP3 files and primarily used for streaming music from the web.