Tactile Calibration Engine
Fine-Tune Wireless Lip-Sync
Slide millisecond delay to lock dialogue into 100% frame-perfect harmony with your earbuds.
Apple AirPods & AirPods Pro
Compensated (+80ms)
80
ms
LOCKED
Audio Science
Why Does Television Audio Lag on Bluetooth?
Every wireless audio standard carries internal codec processing buffers.
Sub-20ms Local Stream
EarCast transfers uncompressed 48kHz audio from your TV to your phone over local Wi-Fi in under 20 milliseconds.
Bluetooth Codec Delay
Standard SBC and AAC Bluetooth protocols add 80ms to 180ms buffer delays between phone and wireless earbuds.
Millisecond Offset Slider
EarCast lets you dial the exact offset compensation so mouth movements and voice sound hit your ears in absolute unison.
Zero-Lag Wired Option
Plug standard 3.5mm or USB-C studio monitoring headphones directly into your phone for true zero-latency theater sound.
Calibrate Your Sound in Real Time
Download the free receiver app on Google Play to test with your TV setup.
Get EarCast on Google Play