Decibel Meter dB Sky vs 进制转换器

How loud is it around you? Keep the moment. Understand the changes. From a bedroom or office to a fan or air conditioner, follow sound changes on a clear dial, save a local recording and revisit the moments that matter. RECORD AND REPLAY FOR FREE • Live reference sound-level estimates, curves, minimum, maximum and average. • Local recording with pause, resume, playback and full history. • User-started recording continues with the screen locked or another app open. • Names, notes, tags, date filters and search. Location is optional. PRO: ONE PURCHASE. NO SUBSCRIPTION. • Photo sound cards: combine a photo, statistics and curve in a PNG. Preview before sharing. • Scene archives: collect observations of the same room, device or place. Filter by date and search. • Timed stop: choose a duration or end time, then start recording yourself. • Monitoring recap and sound timeline: find loud moments, threshold events and the longest low-noise interval. Locate and replay selected clips. • Before-and-after comparison: compare changes and the share of recording time above your chosen threshold. • Recording spectrum: explore relative frequency levels in saved audio and export spectrum CSV. • Share audio and clips; export PDF, CSV, recap images and multi-record reports. Remove ads and unlock advanced reminders. No registration. Recordings and records stay on your device. You decide what to share. The free version includes optional advertising services. Declining tracking does not affect basic recording. Readings are uncalibrated reference estimates affected by the device, microphone and environment. Not for professional, medical or legal evidence use. Photo cards are static images without playable audio. Advanced analysis, scene archives, timed stop and sharing/export require the Pro in-app purchase.

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