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Clipture 1.5.3: WASAPI Loopback Pacing & Audio Sync Stabilization

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@github-actions github-actions released this 11 Sep 00:13
v1.5.3
1aebd06

[1.5.3] - 2026-09-10

WASAPI Loopback Pacing & Audio Sync Stabilization

  • Loopback Silence Scheduling & Grace Period: Refactored system and process-level WASAPI loopback capture fallback (LoopbackSilencePolicy.hpp). An empty poll (GetNextPacketSize() == 0) is no longer prematurely treated as silence; synthetic silence packets are only fabricated after a bounded 200 ms delivery grace period (two 100 ms WASAPI client periods).
  • Audio Timestamp Alignment & Drift Prevention: Prevents premature silence frames from shifting incoming real audio packets forward in the forward-only timestamp aligner, eliminating cumulative audio desync, artificial gaps, stutter, and intermittent buzzing artifacts on resume.
  • Dedicated Loopback Silence Test Suite: Integrated clipture_loopback_silence regression suite into CTest covering continuous streams with empty polls, 5–100 ms variable packets, jittered/batched delivery, idle-source advancement, and audio resumption.
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