Nightchart — Noise Meter
Decibel meter & neighbor noise log with PDF reports
Nightchart is a noise meter and decibel (dB) meter for Android that logs neighbor noise all night — footsteps, music, barking — and checks it against real noise limits (Korea apartment rules, UK Noise Act night level, WHO guidelines). Measuring and the incident log are always free; recording sessions, Night Watch and PDF reports come with a one-time lifetime pass. No subscription, ads or account.
Features
• Night Watch logs only the moments over the limit while you sleep
• One-tap incident log with time, type and a note
• PDF reports of sessions and incidents
• A/C/Z weighting, Fast/Slow, LCpeak, octave bands, NIOSH exposure
• No audio recording by default
Use Cases
• Documenting noisy upstairs neighbors for a landlord or council
• Checking sound levels in a room
• Protecting your hearing
Comments
Hi Fazier! A plain dB number rarely helps in a noise complaint, so Nightchart checks the noise against actual limits, logs only the moments over the limit at night, and turns it into a PDF you can hand to a landlord or council. No audio is recorded by default, and it's honest that a phone isn't a certified meter. Feedback on the report format is very welcome.
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Comments
Hi Fazier! A plain dB number rarely helps in a noise complaint, so Nightchart checks the noise against actual limits, logs only the moments over the limit at night, and turns it into a PDF you can hand to a landlord or council. No audio is recorded by default, and it's honest that a phone isn't a certified meter. Feedback on the report format is very welcome.
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