Noise Detection App

Catches what woke you up and tells you what it was.

Leave your phone where the noise bothers you, tap Start, and go to sleep. Bruit detects noise events, classifies what made them, and records audio — all while your screen is off.

Get Bruit on Google Play
Detection
Automatic
Classification
10 categories
Storage
No cloud

How it works

Three steps. No account, no setup.

Setup 01

Place the phone where the noise bothers you. Plug it in and open Bruit.

Start 02

Tap Start and go to sleep. Bruit adapts to your background noise level and detects anything that stands out.

Results 03

Wake up to a list of events with timestamps, dB levels, and what category of sound caused each one.

What you get

01

Real-time noise levels

A live decibel gauge that keeps running with the screen off. When something loud happens, Bruit captures the clip — including the seconds before the trigger.

Real-time noise levels
02

Every event classified

Music, impacts, barking, voices, vehicles — ten categories, each scored by confidence. Other apps show a decibel number. Bruit tells you what made it.

Every event classified
03

Your data, ready to share

Export a ZIP with recordings and CSV data whenever you need it. The export is free, not locked behind a paywall. Delete everything with one tap.

Your data, ready to share

All features

Runs all night on any Android phone from 2017 onward.

Accurate dB measurements

IEC 61672-1 compliant with A-Weighting. The same standard used in professional sound level meters.

Automatic detection

Tracks the rolling background level and flags sounds that stand out. Works in a quiet bedroom or a noisy apartment without any tuning.

Sound classification

Recognizes music, impacts, dogs, voices, vehicles, and more. Ten categories scored by confidence, running entirely on your phone.

Speech scrambled

Recordings destroy speech content automatically. Share a clip that proves bass was thumping at 2 AM without capturing a single word.

Runs all night

Screen off, phone plugged in. Bruit runs as a foreground service and restarts automatically if Android kills it. No crashes, no silence.

ZIP export

Export recordings and CSV data as a ZIP file. Free, not paywalled. Your data stays yours — delete everything with one tap.

Why Bruit

Set it and forget it

Place the phone and go to sleep. It adapts to your environment on its own.

Runs All night
Detection Auto
Battery Plugged in
Screen Off

Privacy

Everything stays on your phone. Speech is scrambled. No account, no cloud.

Cloud None
Account None
Speech Scrambled
Data Yours

Download now

Get Bruit on Google Play

Android 2017+ • No account • No cloud

Free with ads • One-time unlock available

10 Sound categories
∞ Events
0 Cloud uploads