Source note · Codec selection and bandwidth planning
Opus runs in three modes: SILK-only for low-bitrate speech, Hybrid (SILK plus CELT) for medium-bitrate speech, and CELT-only for music and low-delay use.
Checked 2026-09-24
- Vendor
- IETF
- Product
- Opus
- Subsystem
- codec
- Deployment
- any
- Region
- not restricted
- Release range
- RFC 6716 (September 2012)
- Checked
- 2026-09-24
Sources
- RFC 6716: Definition of the Opus Audio Codec — IETF / RFC Editor · tier 1 standards and regulators · Section 3.1 (The TOC Byte), configuration/mode description
Cite this note
APA
WarmTransfer. (2026, September 24). Codec selection and bandwidth planning: source note bandwidth-codec-planning-opus-three-modes. WarmTransfer. https://warmtransfer.net/knowledge/claims/bandwidth-codec-planning-opus-three-modes
BibTeX
@misc{warmtransfer-claim-bandwidth-codec-planning-opus-three-modes,
title = {Codec selection and bandwidth planning: source note bandwidth-codec-planning-opus-three-modes},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/bandwidth-codec-planning-opus-three-modes},
note = {Source note bandwidth-codec-planning-opus-three-modes, checked 2026-09-24}
}