🔊 Acoustic Sanctuary

Targeted acoustic defense · tinnitus masking · deep focus — real-time resonant feedback engine

Saved Configurations

Sleep Timer:

Signal Source:

Master Volume LFO Off

Active Frequency Bands

Master Level: 0.50

Resonance (Q): 1.0

Feedback: 0.30

Saturation: 10

Worker Timer: 50 ms heartbeat in a dedicated Web Worker — immune to Chrome's 1 s background clamp.
Audio-Clock Scheduling: All automation uses AudioContext.currentTime with 100 ms look-ahead. The render thread is never throttled.
Worker Sleep Timer: The sleep countdown runs on the Worker clock, not setTimeout, so it fires accurately even when backgrounded.
Wake Lock API: Prevents display/system sleep; auto-reacquires on visibility restore.
Page Lifecycle: freeze/resume/visibilitychange handled; AudioContext auto-resumes.
Silent Anchor: Looping silent WAV prevents OS audio-session teardown on mobile.
State Machine: Explicit idle → starting → playing → stopping transitions prevent race conditions.