How to Set Up and Use Sound Recognition on Mac to Detect Alarms and Sounds

Working on a Mac with noise-cancelling headphones or active music playback often prevents users from hearing critical sounds in their environment, such as smoke alarms, doorbells, crying infants, or running water. While long available on iPhone and iPad, Apple expanded the native Sound Recognition accessibility feature directly into macOS. Using on-device machine learning and the built-in Mac microphone, Sound Recognition continuously listens for specific ambient sounds and delivers immediate visual and audio notifications whenever a match is detected.

For deaf and hard-of-hearing users, or anyone working in acoustically isolated home offices, configuring Sound Recognition provides essential environmental awareness directly across your Mac display.

Requirements and Privacy Safeguards

Before enabling the feature, ensure your hardware and software meet the necessary requirements:

• Operating System: macOS Sonoma or macOS Sequoia.
• Hardware: Supported across all Apple Silicon Mac models (M1, M2, M3, M4) and supported Intel Macs equipped with the Apple T2 Security Chip.
• Local Processing: All audio analysis is performed entirely on-device using the Apple Neural Engine. No raw audio recordings or ambient sound clips are transmitted to Apple servers.

Enabling Sound Recognition in macOS System Settings

Sound Recognition is configured within the macOS Accessibility suite:

1. Click the Apple menu in the top-left corner of your menu bar and select System Settings.
2. In the left sidebar, scroll down and click Accessibility.
3. Under the Hearing section on the right, click Audio (or Sound Recognition depending on macOS build).
4. Locate the Sound Recognition option and toggle the switch to the On position.
5. If prompted, grant the system permission to access your microphone for environmental audio detection.

Configuring Detectable Sounds and Categories

Once Sound Recognition is active, you can select which specific sounds trigger alerts:

1. In System Settings > Accessibility > Sound Recognition, click the Sounds button or expand the sounds list.
2. Browse through the available sound categories:
   • Alarms: Fire alarms, Siren alerts, and Smoke detector beeps.
   • Household Sounds: Doorbells, Door knocks, Water running, and Appliance chimes.
   • People: Baby crying, Coughing, and Shouting.
   • Animals: Cat meowing and Dog barking.
3. Toggle on the specific sounds relevant to your living and working environment.
4. Avoid toggling every sound simultaneously to minimise false positive alerts from background multimedia playback.

Managing Notifications and Alerts

When Sound Recognition identifies a configured noise, macOS displays a high-priority notification banner in the top-right corner of your screen, indicating the detected sound type:

1. To customise how alerts appear, navigate to System Settings > Notifications.
2. Locate Sound Recognition in the list of applications.
3. Ensure Allow Notifications is toggled on.
4. Choose between Banners (which disappear automatically) or Alerts (which remain pinned on screen until dismissed).
5. Enable Play sound for notification or combine with Flash screen on audio alerts in Accessibility settings for enhanced visual confirmation.

Training Custom Sounds (Doorbells and Appliances)

Because household appliances and digital door chimes often use unique tones that differ from standard generic models, macOS allows training custom alarms:

1. In the Sound Recognition sounds list, scroll down and click Custom Alarm or Custom Appliance / Doorbell.
2. Enter a descriptive name (e.g., "Washing Machine Done" or "Front Gate Buzzer").
3. Place your Mac near the target noise source and trigger the sound repeatedly when prompted by the setup wizard.
4. macOS records and trains a local neural profile for the tone.
5. Click Save to add your bespoke acoustic trigger to the active monitoring ledger.

Pausing and Disabling Sound Recognition

When participating in video calls, recording voiceovers, or playing musical instruments, temporarily disable monitoring to prevent nuisance banners:

• Open Control Centre from the menu bar, click Hearing, and toggle Sound Recognition off.
• Sound Recognition will also automatically pause whenever the microphone is exclusively seized by certain full-duplex DAW audio applications.