M4R to NIST Converter
Convert your m4r files to nist online & free
How to convert m4r to nist
Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.
Choose "to nist"
Choose nist or any other format you need as a result (more than 200 formats supported)
Download your nist
Let the file convert and you can download your nist file right afterwards
MPEG 4 Ringtones Audio
M4R - is a digital multimedia container format used to store audio in mono channel mode. This format is suitable for store ringtones and it is widely used by Apple iPhone for its ringtones. Needless to say that M4R and M4A formats shares many similar features.
NIST (National Institute of Standards and Technology)
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.