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dB Calculator Plus 螢幕截圖
About dB Calculator Plus
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 listener's 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
Thanks for your support, and do visit nitrio.com for more apps for your iOS devices.
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 listener's 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
Thanks for your support, and do visit nitrio.com for more apps for your iOS devices.
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最新版本1.2更新日誌
Last updated on 2024年01月11日
歷史版本
- Updated for the newest devices.
- Minor UI update.
- Minor bugs fixed.
- Minor UI update.
- Minor bugs fixed.
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Version History
1.2
2024年01月11日
- Updated for the newest devices.
- Minor UI update.
- Minor bugs fixed.
- Minor UI update.
- Minor bugs fixed.
1.1
2020年11月13日
- Update for Newest Devices
- Bug Fixed
- Bug Fixed
1.0
2018年07月17日
dB Calculator Plus 價格
今日:
HK$ 22.00
最低價格:
HK$ 22.00
最高價格:
HK$ 23.00
dB Calculator Plus FAQ
點擊此處瞭解如何在受限國家或地區下載dB Calculator Plus。
以下為dB Calculator Plus的最低配置要求。
iPhone
須使用 iOS 12.0 或以上版本。
iPad
須使用 iPadOS 12.0 或以上版本。
iPod touch
須使用 iOS 12.0 或以上版本。
dB Calculator Plus支持英文
