.opus Ogg audio

Audio

MIME typeaudio/ogg
audio/x-opus+ogg
DescriptionOgg audio
CategoryAudio
Signature (magic bytes)4F 67 67 53 (OggS)
Based onapplication/ogg
Other extensions.oga, .ogg

Frequently asked questions

What is a .opus file?

The .opus extension is used for several formats: Ogg audio (audio/ogg) and Opus audio (audio/x-opus+ogg).

How do I open a .opus file?

With a media player such as VLC, which plays almost every audio format; on Windows also Media Player, on macOS Music or QuickTime. To edit it, use Audacity for example.

How can you tell a genuine .opus file?

By the bytes at the start of the file, the signature (magic bytes): 4F 67 67 53 (OggS). On Linux and macOS, file --mime-type example.opus checks the real type regardless of the extension.

Which format is .opus based on?

Technically a .opus file is a subtype of “Ogg multimedia file” (application/ogg), so programs for that base format can often read it too.

Which MIME type belongs to .opus?

The MIME type is audio/ogg. In the Apache web server: AddType audio/ogg .opus; in nginx: types { audio/ogg opus; }.

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