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Decibels: dB Sound Level Meter 4+
David Bannach
iPhone용으로 디자인됨
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- 무료
- 앱 내 구입 제공
iPhone 스크린샷
설명
Want to know what noise level is around you? in the restaurant? in the train? in the office? This app will show you with precision & style.
Features:
- Smooth analog display of dB(A)
- Take photo with sound level display
- Share, print, and store sound level photos
Extra Features (with purchase):
- Select frequency weightings A, C, and Z
- Record decibels on beautiful strip charts
- Annotate the strip charts
- Share, print, and store the strip charts
This app uses the internal microphone to estimate the sound pressure level in decibels (dB SPL).
Examples:
- quiet bedroom at night: 30 dB
- average home: 50 dB
- vacuum cleaner, 1m away: 70 dB
- jet aircraft, 50 m away: 140 dB
새로운 기능
버전 3.5.2
Thank you for using Decibels. This version fixes a bug that in some cases prevented the microphone from being activated when the app was reopened.
평가 및 리뷰
They finally got it Calibrated.
I’ve been using Decibels for years having found the chart recorder extremely useful, however it always read dB a little higher than it really was. The last update corrected that and it now has correct readings. They also added different weighting settings A,C andZ. The basic meter is great and I recommend getting the options as it makes the best meter using chart recorders.
개발자 답변 ,
Thank you for your nice review! -david
Good enough I guess
Every place you check, the approximate dB SPL of various sounds is a bit different. For example, other reviewers claim a quiet room is ~40dB, but various websites online say it’s 30 or even 20dB. My room at night measures 36dB. Similarly, conversation at 1m away is around 40-60dB, so I stood 1m away and spoke quietly, quieter than I would in a normal conversation in a quiet room (and I’m not a loud speaker). The app measured ~70dB. I guess I should just automatically reduce any measurement by ~5-10dB. Good enough if absolute accuracy isn’t a must, I guess. 4 stars, since I don’t have a good decibel meter to compare against.
개발자 답변 ,
Thank you for your review. I think part of the confusion are the different weighting schemes that may be used. This app measures raw SPL (no weighting) whereas most people seem to expect an A-weighting (db(A)). A-weighting makes the measurement less sensitive to low frequencies which results in a lower value in many cases. I'm planning to switch to dB(A) in the next version.
Outstanding decibel meter…
Fast - easy interface - Useful when cleaning house, reading, hiking to make sure the ‘noise’ is good noise.
개발자 답변 ,
Thanks for your review! I'm happy you like the app.
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정보
- 판매자
- David Bannach
- 크기
- 18.7MB
- 카테고리
- 유틸리티
- 호환성
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- iPhone
- iOS 11.0 이상 필요
- iPod touch
- iOS 11.0 이상 필요
- Mac
- macOS 11.0 이상 및 Apple M1 칩 이상이 탑재된 Mac이 필요
- Apple Vision
- visionOS 1.0 이상 필요
- 언어
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Swiss German, 독일어, 영어
- 연령 등급
- 4+
- 저작권
- © 2010-2023 David Bannach
- 가격
- 무료
- 앱 내 구입
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- Beautiful Strip Chart Recorder US$2.99
- Professional Controls US$1.99