FaceTime Volume Too Low on Mac? Why and How to Fix

FaceTime calls on your iPhone are fine. But on your Mac, the other person sounds like they're whispering from three rooms away. Volume is maxed, and it's still too quiet.

Low FaceTime volume on Mac has several possible causes. Work through them in this order.

1. Check the output device

Go to System Settings > Sound > Output and make sure the right device is selected. If you recently connected or disconnected headphones, a display or a Bluetooth device, macOS may have switched to an unexpected output, like a monitor with weak built-in speakers.

2. Check FaceTime's own audio output

During a call, open the Video menu in FaceTime's menu bar and check which output device is selected. FaceTime can use a different output than the system default, especially after you switch devices.

3. Stop AirPods from switching away mid-call

If your AirPods are paired with several Apple devices, they can switch away from your Mac during a call. Go to System Settings > Bluetooth, click the "i" next to your AirPods and set Connect to This Mac to "When Last Connected to This Mac" instead of "Automatically".

4. Bluetooth headset mode

FaceTime uses your microphone. If that microphone is the one in your AirPods or Bluetooth headphones, they switch to a hands-free (headset) mode that sounds lower in quality and often quieter. Use a separate microphone, such as the Mac's built-in mic or a USB mic, so your headphones stay in their normal playback mode.

5. Headphone Safety limiting volume

Go to System Settings > Sound > Headphone Safety. If "Reduce Loud Audio" is on, macOS caps your headphone volume. Turn it off or raise the threshold.

6. Restart Core Audio

Open Terminal and run:

sudo killall coreaudiod

This restarts the macOS audio service and can clear a stuck low-volume state. Rejoin the FaceTime call once audio is back.

7. Boost FaceTime past 100%

If every setting is right and FaceTime is still too quiet (often because the other person has a weak microphone), you need to go above the macOS maximum.

SoundDial lets you boost one app above 100%, up to 200%. Open its menu bar panel, find FaceTime and drag its slider past 100%. Only FaceTime gets louder; your other apps stay where they are. During the call, SoundDial's auto-ducking (on by default) also lowers other apps to 30% of their level while FaceTime uses the microphone, and restores them when the call ends; you can change the level or turn it off in Settings.

It works the other way too: if FaceTime's ringtone is too loud while you work, lower FaceTime on its own or mute it, and keep your music playing.

SoundDial is a per-app volume mixer for Mac, €14.99 one-time purchase on the Mac App Store with no subscription, and needs macOS 14.2 or later.

Get SoundDial on the Mac App Store.