- Extension
- .f4v
- .sph
- Format
- Binary
- Binary
- Category
- Video
- Audio
- Developer
- Adobe Systems
- NIST
- Description
- Video container format used by Adobe Flash; based on the ISO MP4 format, which is based on the Apple QuickTime container format; specified by ISO/IEC 14496-12 as a base media file format; supported by Flash Player Update 3 (9,0,115,0) and higher.
- Waveform audio file created in the NIST SPHERE format, which is often used in speech recognition research; often contains a recording of a person speaking; can be provided as input to speech recognition systems.
- MIME Type
- video/x-f4v
- audio/x-nist-sph
