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Developed with the intent to support internet streaming by the Internet Engineering Task Force (IETF) OPUS is a lossy audio format. The OPUS extension encoded with OPUS codec are uncommon as the OPUS codec is mainly brought in use for streaming.
Technical details of OPUS files
Easily adjustable between high and low bit rates, from 6 kb/s to 510 kb/s, the OPUS extension draws inspiration from both SILK (used by Skype) and CELT codec. This codec is popularly brought in use for video conferencing, voice over IP, in video chats, and to serve a lot more purposes.


- Tutorial per aprire e convertire i file audio OPUS in MP3 con VLCcon Audacityhttps://www.audacityteam.org/downloa.
- Opus is a totally open, royalty-free, highly versatile audio codec. Speech and music transmission over the Internet, but is also intended for storage and streaming It is standardized by the Internet Engineering Task Force (IETF) as RFC 6716which incorporated technology from Skype’s SILK codec and Xiph.Org’s CELT codec.
More information about the OPUS file format

Speex is already there). There are a lot of questions (like whether to link core Audacity to Gstreamer or load it as a module), but this could let us drop quite a lot of per-format code from Audacity.
Opus To Wav Audacity

Opus Gallicum
File extension | .opus |
File category | Audio |
Example file | Download example.opus file (1.4 MiB) |
Associated programs | AIMP VideoLAN VLC Media Player OPUS tools |
Useful links | More information on OPUS files |
File conversion | Convert a file to OPUS |
Developer | Xiph.org |
