Whether wearing noise-cancelling headphones while working, listening to music at home, or living with hearing loss, missing critical environmental sounds—such as a smoke detector beeping, a courier ringing the doorbell, or a baby crying—can lead to safety hazards or missed deliveries. To bridge this sensory gap, Android includes a native accessibility feature called Sound Notifications. Powered by on-device machine learning, your phone’s microphone continuously monitors ambient audio, categorises urgent sounds, and alerts you instantly through push notifications, vibrations, camera flash pulses, and smartwatch haptics.
Supported Audio Categories in Sound Notifications
Sound Notifications analyses environmental sounds entirely on-device, preserving your privacy without transmitting raw audio recordings to external cloud servers. The system recognises several critical sound profiles:
- Critical Emergency Alerts: Fire alarms, smoke detectors, carbon monoxide sirens, and civil defence warning sirens.
- Household Alerts: Baby crying, dog barking, doorbell rings, door knocks, and landline telephone rings.
- Appliance & Water Alerts: Running water from open taps, washing machine beeps, microwave timers, and kitchen appliance chimes.
- Custom Sound Training: Allows users to record and teach the phone to recognise unique electronic chimes (such as specialized electric buzzers or custom appliance alarms).
How to Turn On Sound Notifications on Android
Sound Notifications is integrated into Google’s Android Accessibility Suite (available across Android 10, 11, 12, 13, 14, and 15):
- Open the Settings app on your Android device.
- Scroll down and select Accessibility.
- Under the Hearing section, tap Sound Notifications.
- Tap Open Sound Notifications (or toggle the master activation switch to On).
- When prompted, grant the app permission to access your device’s microphone so it can process background audio streams.
Configuring Alert Styles (Vibrations, Flash, and Wearables)
To ensure you never overlook a critical alert, customize how notifications present themselves:
- Inside the Sound Notifications screen, tap the Settings gear icon in the top right corner.
- Tap Sound Notifications are active to choose specific sounds. You can toggle off high-frequency false positives (such as dog barking) while keeping emergency smoke alarms on high priority.
- Under Notification preferences, configure your physical sensory alerts:
- Vibration: Enable distinct rhythmic haptic pulses for emergency alarms.
- Camera Flash: Toggle on camera flash strobing so the LED torch pulses brightly when a smoke detector sounds.
- Screen Flash: Flashes the entire phone display bright yellow or red.
- If you wear a Wear OS smartwatch (such as a Pixel Watch or Samsung Galaxy Watch), notifications replicate to your wrist instantly with persistent haptic taps.
Training Custom Appliance and Buzzer Sounds
If your apartment features an older buzzer or a unique microwave chime that the default model misses, you can train a bespoke classifier:
- Navigate to Sound Notifications Settings > Custom sounds.
- Tap + Add sound.
- Assign your alert a title (for example, Intercom Buzzer).
- Stand near the appliance and trigger the sound. Hold the phone steady while it records 5 to 10 sample instances of the chime.
- Save the model. Your phone will now listen specifically for that acoustic frequency profile alongside default alarms.
Reviewing the Sound History Timeline
Sound Notifications maintains a chronological log of all detected sounds, helping you review events while you were asleep or away from your desk:
- Open the Sound Notifications app or tap an active alert banner.
- The timeline displays a rolling 24-hour visual feed showing the exact time, duration, and confidence score of each detected sound (e.g., Running water detected for 12 minutes at 14:22).
Enabling Sound Notifications turns your Android smartphone into an attentive acoustic safety sentinel, ensuring you remain aware of your physical surroundings regardless of ambient noise or hearing impairment.