- Extension
- .nist
- .mp2
- Format
- Binary
- Binary
- Category
- Audio
- Audio
- Developer
- National Institute of Standards and Technology
- Moving Picture Experts Group
- 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.
- Audio format that uses MPEG-1 Layer II compression to reduce the file size; mainly replaced by the ubiquitous .MP3 format, but is still used for digital radio and digital television broadcasts.
- MIME Type
- audio/x-nist
- audio/mpeg
