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Version
1.2
Size
8.12 Mb
Updated
1 year ago
Released
29 Jul 2018
Screenshots
Description
dB Calculator is a physics/math calculator designed to find sound pressure level (SPL) and sound intensity level (SIL) in decibels quickly and easily.
Features:
- Instant calculation
- Results are copyable to other apps
- Formulas are included as a reference
- Support up to 16 decimal places
Sound pressure level (SPL)
SPL is a ratio of the absolute sound pressure to a reference level, usually the Threshold of Hearing, or the lowest intensity sound that can be heard by most people. SPL is measured in decibels (dB) due to the broad range of intensities we can hear.
Formula:
SPL = 20 * log (P/Pref)
Where:
SPL - is the sound pressure level in dB
P - is the sound wave pressure, measured in pascals
Pref - is the reference value of sound pressure, typically assumed to be equal to 0.00002 Pa
Sound intensity level (SIL)
Sound intensity is defined as the sound power per unit area, typically measured in the air at a listeners location. The basic units are watts/m² or watts/cm².
Formula:
SIL = 10 * log (I/Iref)
Where:
SIL - is the sound intensity level in dB
I - is the sound intensity in watts per squared meter
Iref - is the reference value of sound intensity, typically assumed to be equal to 10⁻¹² W/m²
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Estimates
Search Keywords 1
| # | Term | Country | Place | Priority |
|---|---|---|---|---|
| 1 | db power | #16 | ⭐️⭐️⭐️⭐️ |
Competitors
| # | App | Common keywords |
|---|---|---|
| 1 | dB Calculator | 11 |
| 2 | Decibel Sound Meter - Noise Level Measure in Db | 11 |
| 3 | Radio & dB Calc | 11 |
| 4 | dB Calc | 11 |
| 5 | Sound Level Meter | 11 |
| 6 | Currency Buddy | 11 |
| 7 | RF Link Calc | 11 |
| 8 | Travel Buddy - Currency | 11 |
| 9 | Sound Level Meter 2 | 11 |
| 10 | Decibel Watt | 11 |
| 11 | Noise Level Meter - measure noise in Decibel (db) | 10 |
| 12 | Power Tech | 10 |
| 13 | Decibel Loss Calculator | 10 |
| 14 | Field Strength Estimator | 9 |
| 15 | Scouter -battle power version | 8 |
| 16 | Low Frequency Detector | 8 |
| 17 | 电学计算器 | 8 |
| 18 | dB Sound Measure - Noise Power Level and Decibel Meter Free | 5 |
| 19 | Decibel X:dB Sound Level Meter | 5 |
| 20 | Decibel X PRO: dBA Noise Meter | 5 |
| 21 | dB Noise Meter App | 3 |
| 22 | VIVITAR DB-208 | 3 |
| 23 | Decibel Meter - Noise Meter | 2 |
| 24 | Music Improver | 1 |
| 25 | Music Improver Pro | 1 |
| 26 | DBPOWER/RC | 1 |
| 27 | DBPOWER FC | 1 |
| 28 | ipCam FC - for IP Cameras | 1 |
Availability
Devices
iPhone5s
iPadAir
iPadAirCellular
iPadMiniRetina
iPadMiniRetinaCellular
iPhone6
iPhone6Plus
iPadAir2
iPadAir2Cellular
iPadMini3
iPadMini3Cellular
iPodTouchSixthGen
iPhone6s
iPhone6sPlus
iPadMini4
iPadMini4Cellular
iPadPro
iPadProCellular
iPadPro97
iPadPro97Cellular
iPhoneSE
iPhone7
iPhone7Plus
iPad611
iPad612
iPad71
iPad72
iPad73
iPad74
iPhone8
iPhone8Plus
iPhoneX
iPad75
iPad76
iPhoneXS
iPhoneXSMax
iPhoneXR
iPad812
iPad834
iPad856
iPad878
iPadMini5
iPadMini5Cellular
iPadAir3
iPadAir3Cellular
iPodTouchSeventhGen
iPhone11
iPhone11Pro
iPadSeventhGen
iPadSeventhGenCellular
iPhone11ProMax
iPhoneSESecondGen
iPadProSecondGen
iPadProSecondGenCellular
iPadProFourthGen
iPadProFourthGenCellular
Pricing by country
| Country | Price |
|---|---|
| Canada | 3.99 CAD |
| China | 22 CNY |
| France | 2.99 EUR |
| Germany | 2.99 EUR |
| Italy | 2.99 EUR |
| Netherlands | 2.99 EUR |
| Portugal | 2.99 EUR |
| Spain | 2.99 EUR |
| UK | 2.99 GBP |
| India | 299 INR |
| Japan | 500 JPY |
| Korea, Republic Of | 4400 KRW |
| Poland | 14.99 PLN |
| Russia | 249 RUB |
| Turkey | 129.99 TRY |
| USA | 2.99 USD |
| Ukraine | 3.99 USD |
