Routing & synchronization
Run Auto Optimize
Use latency estimates to choose a timing reference and delay faster outputs.
Published 2026-09-04
Before you begin
Use supported Windows System audio routing with at least one additional selected output. Independent per-output application assignments are not supported by Auto Optimize.
Step by step
- On Control, select System audio and your additional outputs.
- Click Start routing. Auto Optimize is shown only after routing starts.
- Click Auto Optimize and allow the operation to complete. PairChord can stop routing, switch the Windows default to the slowest estimated output, update routed delays, and restart.
- Listen across the outputs. If their sound is still offset, use the manual Calibration pulse and fine adjustments.
Check the result
Faster routed paths receive added delay relative to the slower estimated path. This uses local estimates, not a microphone measurement of the sound arriving at your ears.
If something goes wrong
There is no zero-latency or perfect-sync guarantee. Bluetooth jitter and device processing can require further calibration. If unavailable, check that routing is active, System audio is selected, and no output has an independent app source.