Sound Meter - Decibel Pro 对比 Decibel Metre (Sound Meter) 的使用情况和统计数据

Sound Level Meter app can measure environment noise in decibel values (dB). Sound Level Meter is a perfect free auxiliary tool to evaluate the noise around you and the best noise detector & real-time audio analyzer, a necessary noise detector app for both individuals and families, it helps you stay away from noise pollution and concentrate. Compare the noise you record to reference, is it normal conversation, or as loud as subway train? Features of Decibel Meter & Sound Level Meter - Evaluate current noise reference - Evaluate avg/max decibel values (dB) - Display decibel in gauge & graph - Measure sound level with record - Save noise recording, take decibel photo and record decibel video - Display avg/min/max decibel values of records - 4 themes for your choice - Calibrate if you feel not accurate enough - Regulate voices visually - Set decibel warning for timely hearing protection Uses of Decibel Meter & Sound Level Meter - When you feel too noisy but without proof - Monitor sound level around us - Detect the decibel of your neighbors - Record your snores Levels of Noise in decibels (dB) according to the American Academy of audiology, from 20 dB to 120 dB between the division. Note: The max values are limited by your ios device, very loud noises may not be recognized accurately. This sound meter app is a necessary noise detector app for both individuals and families, it helps you stay away from noise pollution and concentrate. Just need one step to turn your phone into a sound meter tool to measure environmental noise, download this free Sound Meter app! About the In-App Subscription: --Subscription period: "Sound Meter Premium - Monthly" (continuous monthly subscription product), "Sound Meter Premium - Yearly" (continuous annual subscription product), "Sound Meter Premium - Permanently" --Payment: After user confirms the purchase and pays, it will be billed through your Apple ID account --Cancel renewal: If you need to cancel the renewal, please manually turn off the automatic renewal function in the iTunes/Apple ID setting management 24 hours before the current subscription period expires --Renewal: Apple’s iTunes account will be deducted within 24 hours before expiration. After the deduction is successful, the subscription period will be extended by one subscription period. --Privacy Policy: http://privacypolicy.oss-us-west-1.aliyuncs.com/protocol/privacy.txt --EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/