Decibel Meter: Noise Report

Decibel Meter: Noise Report shows how loud it is around you, right now and over time. Hold up your phone and the decibel meter shows the live sound level in dB, with the minimum, the average (Leq) and the maximum, on a clear gauge and a scrolling graph. Use it as a quick sound meter for everyday questions, or as a noise meter that keeps a record: save a measurement as a session with a note, and look back at it later. The sound is processed on your phone and is never recorded, stored or sent. Readings are an estimate: this is not a certified sound level meter. WHAT YOU GET • Live sound level in dB: current, min, average (Leq) and max • A-weighting for everyday noise, C-weighting for music and bass • Fast (125 ms) or slow (1 s) response • A gauge with quiet, moderate, loud and very loud zones, and a graph of the last 60 seconds • Reference levels from a whisper to a siren, and the nearest one next to your reading, such as "Normal conversation" • Sessions of up to 10 minutes with a note. They keep measuring with the screen off, with an ongoing notification that shows the level and has a Stop button • Session details: a graph over time, Leq, min, max, peak and L10, L50, L90 • History of your 5 most recent sessions • Works offline, dark theme, tablet layout and screen reader support PREMIUM • Noise reports as PDF (graph, statistics, date and times) or CSV (the levels over time, for a spreadsheet), to save or share with a landlord, a building manager or your employer. Without Premium, you can watch a short ad to export one PDF report. • Long sessions with no 10-minute limit • Scheduled measurement: pick a time window, such as 10 PM to 6 AM, and the app measures only inside it • Calibration: adjust readings by up to ±20 dB to match a reference meter • Unlimited history and no ads Premium is a one-time purchase. USE IT FOR • Neighbor noise: log loud music, parties or footsteps with dated sessions and notes, and turn them into a report for your landlord or building manager. • Work: get an idea of the noise level in an office, a workshop or on a site, and keep notes of it. • Events and music: check levels at a rehearsal, a concert or a club, with C-weighting for the bass. • Studying and working from home: find the quietest room, or the quietest time of day. • Baby room: see how loud the nursery or a sound machine is at night. QUESTIONS Is the decibel meter accurate? Phone microphones are built for voices, not for measuring. The app uses the microphone's raw input where the phone offers it, turns off automatic volume control where it can, and applies standard A or C weighting. The result is an estimate, not a measurement you can certify. Very quiet and very loud sounds are the hardest for a phone microphone; when a sound is too loud for it, the app shows "≥". For legal or occupational measurements, use a certified sound level meter. Why do two phones show different values? Every phone has its own microphone, position and audio processing, so two phones can read a few decibels apart in the same room. How do I calibrate it? Put the phone next to a reference meter, or play a sound of known level, and set the difference in Calibration (Premium). The offset is saved and used for every reading and session. Does it record what people say? No. The sound is turned into a level number in memory and then thrown away. Only the levels (one per second during a session) and your notes are saved, on your phone. There is no account and no sign-in. Can the dB meter measure overnight? With Premium, yes: arm a scheduled measurement in the app and it measures inside your window, with a notification the whole time. Without Premium, a session stops after 10 minutes. What does Premium add? PDF and CSV reports, long and scheduled measurements, calibration, unlimited history and no ads.

First release of Decibel Meter. See the live sound level in dB with min, average and max, switch between A and C weighting and fast or slow response, compare with reference levels, and save sessions of up to 10 minutes with notes. Audio is never recorded or sent. Premium adds PDF and CSV noise reports, long and scheduled measurements, calibration, unlimited history and no ads.