OPUS file format
| Extension | .opus |
| Category | audio |
| Description | Crafted by the IETF community, this online broadcasting format utilizes lossy compression for audio data, delivering high-quality sound and efficient compression through the use of dynamic streaming technology. OPUS, an essential audio codec for Skype, is constructed based on Skype's message transfer algorithms and it utilizes the .ogg extension for its container. |
| Technical details | This format employs the CELT and SILK codecs, which allow for a seamless bitrate adjustment ranging from 6 to 510 Kbit/s. Due to its versatility, it has become the preferred choice for video chats, conferences, and IP telephony. |
| MIME type | audio/opus audio/ogg |