Decibels: dB Sound Level Meter ٤+
David Bannach
مصمم لـ iPhone
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- مجانًا
- يوفر عمليات الشراء داخل التطبيق
لقطات شاشة iPhone
الوصف
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
ما الجديد
الإصدار 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.
التقييمات والمراجعات
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.
استجابة المطور ،
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.
استجابة المطور ،
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.
استجابة المطور ،
Thanks for your review! I'm happy you like the app.
الشراء من داخل التطبيق
خصوصية التطبيق
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لا يتم جمع البيانات
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المعلومات
- البائع
- David Bannach
- الحجم
- ١٨٫٧ م.ب.
- الفئة
- أدوات
- التوافق
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- iPhone
- يتطلب iOS 11.0 أو أحدث
- iPod touch
- يتطلب iOS 11.0 أو أحدث
- Mac
- يتطلب جهاز macOS 11.0 أو أحدث وجهاز Mac مع شريحة Apple M1 أو أحدث.
- Apple Vision
- يتطلب visionOS 1.0 أو أحدث
- اللغات
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Swiss German، الألمانية، الإنجليزية
- التصنيف العمري
- ٤+
- حقوق الطبع والنشر
- © 2010-2023 David Bannach
- السعر
- مجانًا
- الشراء من داخل التطبيق
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- Beautiful Strip Chart Recorder US$ 2٫99
- Professional Controls US$ 1٫99