- Extension
- .ac3
- .sph
- Format
- Binary
- Binary
- Category
- Audio
- Audio
- Developer
- Dolby Laboratories
- NIST
- Description
- Audio file saved in the AC-3 (Dolby Digital) audio format; can include up to six channels of audio (DD 5.1 surround sound with subwoofer output); uses lossy compression and often used as the format for DVDs, cinema theaters, and game consoles.
- 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
- audio/ac3
- audio/x-nist-sph
