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Opus

A low-latency lossy audio format standardized by the IETF for speech, music, streaming, conferencing, and interactive applications, commonly stored in Ogg.

General information

Format name
Opus Audio
Extension
.opus
MIME type
audio/ogg
Category
audio
Data type
Binary
Developer
Internet Engineering Task Force

Media properties

Compression
Lossy
Codec
Opus

Common uses

Voice chat
Music streaming
Podcasts
WebRTC audio
Game and application audio

Related formats

Technical resources

ResourcePublisherLink
RFC 7845 — Ogg Encapsulation for the Opus Audio CodecRFC EditorOpen resource ↗
RFC 6716 — Definition of the Opus Audio CodecRFC EditorOpen resource ↗

Record information

Verified
October 4, 2026
Last updated
October 4, 2026