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dB Calculator Plus スクリーンショット
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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最新バージョン 1.2 の更新情報
Last updated on 2024年01月11日
旧バージョン
- 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 価格
今日:
¥400
最低価格:
¥400
最高価格:
¥480
dB Calculator Plus FAQ
ここをクリック！地理的に制限されているアプリのダウンロード方法をご参考ください。
次のリストをチェックして、dB Calculator Plusの最低システム要件をご確認ください。
iPhone
iOS 12.0以降が必要です。
iPad
iPadOS 12.0以降が必要です。
iPod touch
iOS 12.0以降が必要です。
dB Calculator Plusは次の言語がサポートされています。 英語
