What is the difference between .nist and .m4a?
- Extension
- .nist
- .m4a
- Format
- Binary
- Binary
- Category
- Audio
- Audio
- Developer
- National Institute of Standards and Technology
- Apple
- 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.
- An M4A file is an audio file created in the MPEG-4 format, a multimedia container format used to store compressed audio and video data. It contains audio encoded with either the Advanced Audio Coding (AAC) codec or the Apple Lossless Audio Codec (ALAC).
- MIME Type
- audio/x-nist
- audio/mp4
- Sample
- sample.m4a
- Wikipedia
- .m4a on Wikipedia