| Format introduction | Opus is a lossy audio coding format developed by Xiph and standardized by the IETF, designed to efficiently code speech and general audio in a single format, while remaining low-latency enough for real-time interactive communication and low-complexity enough for low end ARM3 processors. |
| Technical details | Opus supports constant and variable bitrate encoding from 6 kbit/s to 510 kbit/s, frame sizes from 2.5 ms to 60 ms, and five sampling rates from 8 kHz (with 4 kHz bandwidth) to 48 kHz (with 20 kHz bandwidth, the human hearing range). An Opus stream can support up to 255 audio channels, and it allows channel coupling between channels in groups of two using mid-side coding. |
| File extension | .opus |
| MIME | audio/opus |
| Developed by | IETF codec working group |
| Type of format | Audio |
| Associated programs | FFmpeg, AIMP, Amarok, cmus, foobar2000, Mpxplay, MusicBee, SMplayer, VLC media player, Winamp |
| Wiki | https://en.wikipedia.org/wiki/Opus_(audio_format) |
| OPUS to MP3 | convert from audio to audio |
| OPUS to WAV | convert from audio to audio |
| OPUS to OGG | convert from audio to audio |
| OPUS to WMA | convert from audio to audio |
| OPUS to AAC | convert from audio to audio |
| OPUS to AU | convert from audio to audio |
| OPUS to FLAC | convert from audio to audio |
| OPUS to M4A | convert from audio to audio |
| OPUS to MKA | convert from audio to audio |
| OPUS to AIFF | convert from audio to audio |
| OPUS to RA | convert from audio to audio |
| OPUS to AMR | convert from audio to audio |
| AVI to OPUS | convert from video to audio |
| 3GP to OPUS | convert from video to audio |
| M2V to OPUS | convert from video to audio |
| MPEG to OPUS | convert from video to audio |
| WMV to OPUS | convert from video to audio |
| MP4 to OPUS | convert from video to audio |
| MKV to OPUS | convert from video to audio |
| M2TS to OPUS | convert from video to audio |
| WEBM to OPUS | convert from video to audio |
| FLV to OPUS | convert from video to audio |
| SWF to OPUS | convert from video to audio |
| ASF to OPUS | convert from video to audio |
| MOV to OPUS | convert from video to audio |
| M4V to OPUS | convert from video to audio |
| RM to OPUS | convert from video to audio |
| VOB to OPUS | convert from video to audio |
| OGV to OPUS | convert from video to audio |
| MP3 to OPUS | convert from audio to audio |
| WAV to OPUS | convert from audio to audio |
| OGG to OPUS | convert from audio to audio |
| WMA to OPUS | convert from audio to audio |
| AAC to OPUS | convert from audio to audio |
| AU to OPUS | convert from audio to audio |
| FLAC to OPUS | convert from audio to audio |
| M4A to OPUS | convert from audio to audio |
| MKA to OPUS | convert from audio to audio |
| AIFF to OPUS | convert from audio to audio |
| RA to OPUS | convert from audio to audio |
| AMR to OPUS | convert from audio to audio |