MacDebug

Verified for macOS Tahoe 26.2

Fix Guide: Tahoe Notification Sounds Not Working

Symptom: You see notification banners appear on macOS Tahoe, but you don't hear any alert sounds—no chime for new emails, messages, or calendar reminders, even though volume is up and "Play sound for notifications" is enabled.

Why this happens

Tahoe 26.2 introduced Focus Modes that sync across devices via iCloud. A corrupt Focus profile or a misconfigured "Do Not Disturb" schedule can silently suppress notification sounds without showing the Focus indicator in the menu bar. Additionally, per-app sound settings may have reset during the Tahoe upgrade.

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Fix 1: Check Hidden Focus Modes

  1. Click the Focus icon in the menu bar (crescent moon or person icon).
  2. Ensure Do Not Disturb is OFF.
  3. If you don't see the Focus icon, open System Settings > Focus and check if any mode is active.
  4. Go to Focus > Do Not Disturb > Options and verify "Allow notifications" is checked.

Fix 2: Reset Notification Sound Daemon

  1. Open Terminal and run:
killall usernoted
killall NotificationCenter
  1. The menu bar notification area will flicker and restart—sound should return immediately.

Fix 3: Re-enable Per-App Sounds

If specific apps remain silent:

  1. Open System Settings > Notifications.
  2. Select the silent app (e.g., Mail, Messages).
  3. Verify Allow notifications is ON.
  4. Check Play sound for notifications.
  5. Click Show notifications and ensure it's set to Banners (not "None").

Fix 4: Reset Core Audio

For system-wide silence:

  1. Open Terminal:
sudo killall coreaudiod
  1. Enter your password—audio daemon will restart in 3-5 seconds.

Recommended Tool: Mela or Sound Control

If Tahoe's notification sound management remains unreliable, Sound Control gives you per-app volume and audio device routing. You can force Mail sounds to play through external speakers even when your AirPods are connected, or set custom notification sounds that bypass macOS's buggy sound profiles entirely.

For developers or power users, it's indispensable for managing complex multi-audio setups.