dB Calculator Plus
Sound Pressure Intensity Level
$2.99
1.1for iPhone, iPad and more
Age Rating
dB Calculator Plus Screenshots
About dB Calculator Plus
dB Calculator are physic/math calculator to find sound pressure level (SPL) and sound intensity level (SIL) in decibels fast and easy.
Features:
- Instant calculation
- Result are copy able to other app
- Formula are include as reference
- Support up to 16 decimal place
Sound pressure level (SPL)
SPL is actually a ratio of the absolute, Sound Pressure and 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), because of the incredibly broad range of intensities we can hear.
Formula:
SPL = 20 * log (P/Pref)
Where:
SPL - sound pressure level in dB
P - sound wave pressure, measured in pascals
Pref - reference value of sound pressure. Typically, it is assumed to be equal to 0.00002 Pa
Sound intensity level (SIL)
Sound intensity is defined as the sound power per unit area. The usual context is the measurement of sound intensity in the air at a listener's location. The basic units are watts/m² or watts/cm² .
Formula:
SIL = 10 * log (I/Iref)
Where:
SIL - sound intensity level in dB
I - sound intensity in watts per squared meter
Iref - reference value if sound intensity. Typically, it is assumed to be equal to 10⁻¹² W/m²
Thanks for your support and do visit nitrio.com for more apps for your iOS devices.
Features:
- Instant calculation
- Result are copy able to other app
- Formula are include as reference
- Support up to 16 decimal place
Sound pressure level (SPL)
SPL is actually a ratio of the absolute, Sound Pressure and 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), because of the incredibly broad range of intensities we can hear.
Formula:
SPL = 20 * log (P/Pref)
Where:
SPL - sound pressure level in dB
P - sound wave pressure, measured in pascals
Pref - reference value of sound pressure. Typically, it is assumed to be equal to 0.00002 Pa
Sound intensity level (SIL)
Sound intensity is defined as the sound power per unit area. The usual context is the measurement of sound intensity in the air at a listener's location. The basic units are watts/m² or watts/cm² .
Formula:
SIL = 10 * log (I/Iref)
Where:
SIL - sound intensity level in dB
I - sound intensity in watts per squared meter
Iref - reference value if sound intensity. Typically, it is assumed to be equal to 10⁻¹² W/m²
Thanks for your support and do visit nitrio.com for more apps for your iOS devices.
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What's New in the Latest Version 1.1
Last updated on Nov 13, 2020
Old Versions
- Update for Newest Devices
- Bug Fixed
- Bug Fixed
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Version History
1.1
Nov 13, 2020
- Update for Newest Devices
- Bug Fixed
- Bug Fixed
1.0
Jul 17, 2018
dB Calculator Plus FAQ
Click here to learn how to download dB Calculator Plus in restricted country or region.
Check the following list to see the minimum requirements of dB Calculator Plus.
iPhone
Requires iOS 12.0 or later.
iPad
Requires iPadOS 12.0 or later.
iPod touch
Requires iOS 12.0 or later.
dB Calculator Plus supports English
