- Extension
- .aac
- .mv4
- Format
- Binary
- Binary
- Category
- Audio
- Video
- Developer
- Bell Labs, Fraunhofer Institute, Dolby Labs, Sony and Nokia
- Apple
- Description
- Compressed audio file similar to an .MP3 file, but offers several performance improvements; examples include a higher coding efficiency for both stationary and transient signals, a simpler filterbank, and better handling of frequencies above 16 kHz; maintains quality nearly indistinguishable from the original audio source.
- M4V is a video container that stores audio and video data used for iTunes files. Files of this type may be protected from illegal viewing and copying with Apple FairPlay DRM. In this case audio or video files should be bought in iTunes store. Not protected files can be viewed almost in any modern player because the format is based on MPEG-4 structure.
- MIME Type
- audio/x-aac
- video/mp4
