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OPUS file format

File extension
.opus
File category
Description

The IETF community has created the format for online broadcasting and is being used for lossy compression of audio data. It provides excellent quality of sound and a perfect compression level due to dynamically adjusted streaming technology. Being an essential audio codec of Skype, OPUS is based on the Skype message-transfer algorithms. As a container, they use .ogg extension.

Technical details

The format uses CELT and SILK codecs, which allow easy change of bitrate within the range of 6-510 Kbit/s. That is why it has gained prevalence in video chats and video conferences, as well as IP translations.

Developer
IETF
MIME type
audio/opus
audio/ogg