A headerless file of Dialogic/OKI ADPCM audio data commonly comes with the extension .vox. This ADPCM data has 12-bit precision packed into only 4-bits.
is a standard for storing audio files in Apple operating systems. It was developed in 1988 based on the IFF format and is a lossless format - audio data is stored in an uncompressed form. In essence, AIFF is an analog to WAV for the Apple Macintosh platform.