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I have acoustic noise level value in dB vs 1 dyne/sq cm e.g. -10 db vs 1 dyne / sq cm. I need to convert it into dB ref 1upa unit. How i will convert it?

Thanks & Regards

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- Thread starter nauman
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- #1

- 86

- 4

I have acoustic noise level value in dB vs 1 dyne/sq cm e.g. -10 db vs 1 dyne / sq cm. I need to convert it into dB ref 1upa unit. How i will convert it?

Thanks & Regards

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https://www.translatorscafe.com/uni.../9-2/sound pressure level in decibels-pascal/

and here's the definition of a pascal in SI

https://en.wikipedia.org/wiki/Pascal_(unit)

1 upa = ##10^{-6}## pascal

and here's the Newton

https://en.wikipedia.org/wiki/Newton_(unit)

NOTE: 1 Dyne = ##10^{-5}## Newton

To convert decibels (dB) to pascals (Pa) in underwater acoustics, you can use the formula: Pa = 10^(dB/20). This is also known as the decibel-to-pascal conversion factor.

dB re 1 μPa and dB re 1 μPa^2/Hz are both units of sound pressure level (SPL) commonly used in underwater acoustics. The main difference is that dB re 1 μPa^2/Hz takes into account the frequency of the sound, while dB re 1 μPa does not. This means that dB re 1 μPa^2/Hz is a more precise measurement of sound pressure level.

To convert meters per second (m/s) to knots (kt) in underwater acoustics, you can use the formula: kt = m/s * 1.94384. This is the standard conversion factor used in oceanography and underwater acoustics.

The reference sound speed used in underwater acoustic unit conversions is typically 1500 m/s. This is the approximate speed of sound in seawater at a temperature of 20°C and a salinity of 35 parts per thousand.

Yes, you can convert between different units of underwater acoustic measurements as long as you know the conversion factor between the two units. For example, to convert from dB re 1 μPa to dB re 1 μPa^2/Hz, you would use the conversion factor for sound pressure level (SPL) to sound intensity level (SIL), which is 2. To convert back, you would use the inverse conversion factor of 0.5.

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