- Extension
- .spx
- .vtt
- Format
- Binary
- Text
- Category
- Audio
- Subtitles
- Developer
- Xiph.Org
- W3C
- Description
- Audio file compressed using Speex compression and saved in the Ogg Vorbis container format; designed as an audio compression format specifically for speech; compresses voice at 2 to 44 kbps and supports 8 kHz, 16 kHz, and 32 kHz compression in the same bitstream.
- WebVTT (Web Video Text Tracks) is a text file format that is used to store subtitles and captions for online video content. It is supported by many web browsers and can be used to add captions and subtitles to HTML5 videos.
- MIME Type
- audio/ogg
- text/vtt
