- Extension
- .spx
- .mka
- Format
- Binary
- Binary
- Category
- Audio
- Audio
- Developer
- Xiph.Org
- Matroska
- 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.
- Audio container format that supports several types of audio compression algorithms; related to the .MKV video format, but only contains audio data.
- MIME Type
- audio/ogg
- audio/x-matroska