Audiout Remote, the free iPhone app, is coming soon (get an email when it’s out). This page shows how measuring with it will work. Today, the Mac app measures with your Mac’s microphone or by ear: Aligning a Bluetooth speaker that plays late.
Bluetooth adds its own delay. Left alone, a Bluetooth speaker plays a fraction of a second behind the others, and you hear it as an echo. Audiout fixes this with an offset, in milliseconds, kept per speaker.
Opening the Sync control
You will open Audiout Remote on the same Wi-Fi as your Mac, find the Bluetooth speaker’s row, and open its Sync control. Both speakers have to be playing.
Before you measure
iOS will ask for the microphone once, the first time you measure. The app will use it only while measuring.
You will take the phone to where you normally listen, somewhere both speakers reach you, and hold still.
Measuring
You will tap Measure. Both speakers play a test sound. The phone hears both, works out the gap, and your Mac applies it. The row shows the offset.
If it can’t hear clearly
If the phone can’t pick out both test sounds clearly, it will say so and offer to try again or to align by ear. It won’t guess. Usual causes are a noisy room, or standing where only one speaker reaches you.
Related
- Why Bluetooth and Cast speakers behave differently: What works with each kind of speaker
- Where the SYNC chip sits in the row: The mixer: Main Audio, faders, and meters
- All articles: support overview