| 開發人員: | Coocent Ltd. (23) | ||
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| App Store | |||
描述
It is a practical noise detector to help you avoid noise pollution that harms your hearing and affects your rest.
dB Sound Meter is free app that provides professional-quality measurement results, calibrated using an actual Nor140 high-precision decibel meter. With dB Sound Meter, you can measure ambient noise levels, save your measurements and their locations, and share your measurements with others.
Get noise data more comprehensively and more accurately:
●Minimal, average and maximal decibel
●Real-time decibel in dial and graph
●Levels of noise
●Calibrate before use for precise data
●Review measurement histories
● Noise dosimeter will help you understand how noisy it is at home and at your workplace.
● Highly accurate measurements.
Customize your sound meter
●Save audio file while measuring
●Set decibel warning when the value is higher than the preset one
●Open the sound or vibrate for the warning
●Apply the black or white theme
Other features of sound meter:
●Re-start measuring
●Suspend recording
●Rename, share and replay the recording
●Indicate the measuring duration, time and status
Notice:
1.To get an accurate decibel of sound with this decibel meter (noise meter), please calibrate before use (because the performance of the microphone will be different for each device).
2.Adjust the decibel according to your experience or calibrate with a real sound meter device for comparison. (Because we couldn't estimate the different decibels between devices, we do not provide a specific solution.)
3.To avoid unnecessary loss, please SAVE your recording before exiting the sound meter app
4.If the recordings are not saved, you cannot replay the measurement.
If you have any questions, please contact us by email.
DB Chart
150-160 dB = Eardrum rupture
140 decibel = Aircraft carrier deck.
130 dB = Jet take-off (100 meters), gun blast at close range.
120 dB= Human pain threshold, loud rock concert.
110 decibel = Serious hearing damage if sustained for more than 1 hour.
100 dB = Serious hearing damage if sustained for more than 8 hours.
90 decibel = Likely hearing damage if sustained for more than 8 hours.
80 decibel = Potential but unlikely hearing damage if sustained for more than 8 hours.
70 dB = Just annoying, but probably safe.
60 dB = Typical conversational volume.
50 dB = A quiet, library conversation.
40 decibel = A whisper.
30 dB = Barely audible sound.
20 decibel = Threshold of human hearing.
About In-App Subscriptions:
--Subscription Period: "Sound Level Meter Premium - Monthly" (Continuous Monthly Subscription), "Sound Level Meter Premium - Yearly" (Continuous Annual Subscription), "Sound Level Meter Premium - Perpetual"
--Payment Method: After confirming purchase and paying, payment will be debited from your Apple ID account.
--Cancellation: To cancel renewal, please manually turn off auto-renewal in iTunes/Apple ID Settings 24 hours before the end of the current subscription period.
--Renewal: Payment will be debited from your Apple iTunes account within 24 hours prior to the expiration date. Once payment is successfully debited, the subscription period will be extended for one additional period.
--Privacy Policy: http://privacypolicy.oss-us-west-1.aliyuncs.com/protocol/privacy.txt
--End User License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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