One-page reference: the three Opus modes (SILK / CELT / hybrid), the RFC 7587 bitrate sweet spots, the FEC / DTX / frame-size dials, key SDP parameters, and the one rule that picks Opus over AAC.
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The book · Volume 4 of 7
Audio for Video: A Complete Guide to Sound in Video Products: From PCM and Codecs to Loudness, Accessibility, and Real-Time Voice Processing
This Opus settings cheat sheet covers the SILK, CELT and hybrid modes, the RFC 7587 bitrate sweet spots, FEC, DTX and frame-size dials, the key SDP parameters and when Opus beats AAC. Volume 4 covers this topic in depth: audio codecs including Opus, AAC and speech codecs, sampling and bit depth, loudness, and real-time voice processing before encoding. Written by Nikolay Sapunov, CEO at Fora Soft.
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