Source note · Codec selection and bandwidth planning

The Opus media type defines receiver-side SDP parameters that affect bandwidth: maxaveragebitrate (maximum average receive bitrate in bit/s), maxplaybackrate, usedtx (default 0), cbr (default 0, meaning variable bitrate) and useinbandfec.

Checked 2026-09-24

Vendor: IETF
Product: Opus RTP payload
Subsystem: SDP parameters
Deployment: any
Region: not restricted
Release range: RFC 7587 (June 2015)
Checked: 2026-09-24

Sources

RFC 7587: RTP Payload Format for the Opus Speech and Audio Codec — IETF / RFC Editor · tier 1 standards and regulators · Section 6.1 (Media Type Registration, optional parameters)

Cite this note

APA

WarmTransfer. (2026, September 24). Codec selection and bandwidth planning: source note bandwidth-codec-planning-opus-sdp-bw-params. WarmTransfer. https://warmtransfer.net/knowledge/claims/bandwidth-codec-planning-opus-sdp-bw-params

BibTeX

@misc{warmtransfer-claim-bandwidth-codec-planning-opus-sdp-bw-params,
  title  = {Codec selection and bandwidth planning: source note bandwidth-codec-planning-opus-sdp-bw-params},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/bandwidth-codec-planning-opus-sdp-bw-params},
  note   = {Source note bandwidth-codec-planning-opus-sdp-bw-params, checked 2026-09-24}
}

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