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feat(proxy-engine,codec-lib): add adaptive RTP jitter buffering with Opus packet loss concealment and stable 20ms resampling

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Jürgen Kunz
2026-04-10 21:15:34 +00:00
parent b6950e11d2
commit 7c4756402e
7 changed files with 350 additions and 54 deletions
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changelog.md
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# Changelog
## 2026-04-10 - 1.19.0 - feat(proxy-engine,codec-lib)
add adaptive RTP jitter buffering with Opus packet loss concealment and stable 20ms resampling
- introduces a per-leg adaptive jitter buffer in the mixer to reorder RTP packets, gate initial playout, and deliver one frame per 20ms tick
- adds Opus PLC support to synthesize missing audio frames when packets are lost, with fade-based fallback handling for non-Opus codecs
- updates i16 and f32 resamplers to use canonical 20ms chunks so cached resamplers preserve filter state and avoid variable-size cache thrashing
## 2026-04-10 - 1.18.0 - feat(readme)
expand documentation for voicemail, IVR, audio engine, and API capabilities