- Extension
- .opus
- .ra
- Format
- Binary
- Binary
- Category
- Audio
- Audio
- Developer
- Xiph.Org
- RealNetworks
- Description
- An OPUS file is an audio file created in the Opus format (also called "Ogg Opus"), a lossy audio format developed for Internet streaming. It uses both SILK (used by Skype) and CELT (from Xiph.Org) codecs and supports variable bit rates from 6 kb/s to 510 kb/s.
- RealPlayer created RA for audio streaming. It makes use of various audio codecs from those that deliver high-fidelity sounds to those that record low bitrate audio data. Radio stations mainly used it for online streaming, but current formats have overthrown it.
- MIME Type
- audio/opus
- audio/vnd.rn-realaudio
