Decibel Meter - Sound Recorder

Your pocket acoustic lab.

Turn your iPhone into a high-precision sound level meter for environmental noise checks, workplace safety, and evidence recording. Get reliable readings plus real-time spectrum analysis and hearing-protection insights.

[Key Features] • Multiple weighting modes: calibrated dB readings with A/B/C/Z and ITU-R 468. • Real-time spectrum: high-speed FFT with a clear 20Hz–20kHz distribution. • Noise exposure tracking: OSHA/NIOSH Dose and TWA with risk alerts. • Recording for evidence: record while measuring, supports background recording. • Auto Pause: automatically pauses recording below a threshold and resumes above it. • iCloud sync: measurements and recordings sync across devices. • Professional reports: export PDF with trends, max/min/avg, and location. • Calibration & privacy: manual device calibration; data stored locally or in your iCloud.

[Common Scenarios] • Neighbor noise evidence: accurately record renovation/party noise levels and recordings to support complaints and dispute resolution. • Sleep environment monitoring: check bedroom background noise, identify sources that affect sleep, improve rest quality. • Workplace assessment: monitor noise exposure in factories, construction sites, or offices to prevent occupational hearing loss. • Appliance noise testing: check whether air conditioners, refrigerators, or ventilation systems exceed limits for quality checks or returns. • Hearing protection: monitor levels at concerts, clubs, and other loud environments to avoid irreversible hearing damage.

[Privacy] Microphone access is only for sound analysis. Audio stays local or in your private iCloud.

[Subscription Info] • You can subscribe for unlimited access to all features of Decibel Meter. • Subscriptions are billed monthly or annually at the rate selected depending on the subscription plan.

By using this App, you agree to our Privacy Policy and Terms of Use: http://cpux.gmud.top/web/soundmeterx/privacy-en.html http://cpux.gmud.top/web/soundmeterx/terms-en.html