RFC 6716: Definition of the Opus Audio Codec

Publisher

IETF / RFC Editor

URL

https://www.rfc-editor.org/rfc/rfc6716

Published

2012-09-01

Updated

unknown

Accessed

2026-09-25

HTTP status

200

License

IETF Trust Legal Provisions (BCP 78); reference code under BSD license; no-redistribution; short excerpts and locators only

Source notes citing this source

• Opus can encode frames of 2.5, 5, 10, 20, 40 or 60 ms and scales from about 6 kbit/s narrowband speech up to 510 kbit/s. in context
• Opus defines optional in-band redundancy (LBRR frames) that, when present, carry an encoded representation of the signal immediately before the current frame, allowing recovery from a lost packet. in context
• The Opus specification includes a packet loss concealment (PLC) function in the decoder for missing packets. in context

Cite this source record

APA

WarmTransfer. (2012, September 1). RFC 6716: Definition of the Opus Audio Codec. WarmTransfer. https://warmtransfer.net/knowledge/sources/rfc-6716-opus-b

BibTeX

@misc{warmtransfer-rfc-6716-opus-b,
  title  = {RFC 6716: Definition of the Opus Audio Codec},
  author = {{WarmTransfer}},
  year   = {2012},
  url    = {https://warmtransfer.net/knowledge/sources/rfc-6716-opus-b},
  note   = {IETF / RFC Editor, accessed 2026-09-25}
}