Noise Reduction in Decibels Calculator

✖Total height of wall which is under the consideration.ⓘ Total Height of Wall [h_w]			+10% -10%
✖Wavelength is the distance between identical points (adjacent crests) in the adjacent cycles of a waveform signal propagated in space or along a wire.ⓘ Wavelength [λ]			+10% -10%
✖Horizontal Distance is the instantaneous horizontal distance cover by an object in a projectile motion.ⓘ Horizontal Distance [R]			+10% -10%

✖Noise reduction is the process of removing noise from a signal.ⓘ Noise Reduction in Decibels [N]

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Formula

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Noise Reduction in Decibels

Formula

`"N" = 10*log10((20*"h"_{"w"}^2)/("λ"*"R"))`

Example

`"109.5721dB"=10*log10((20*("3.1m")^2)/("2.1nm"*"1.01m"))`

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Noise Reduction in Decibels Solution

STEP 0: Pre-Calculation Summary

Formula Used

Noise reduction = 10*log10((20*Total Height of Wall^2)/(Wavelength*Horizontal Distance))
N = 10*log10((20*h_w^2)/(λ*R))
This formula uses 1 Functions, 4 Variables

Functions Used

log10 - The common logarithm, also known as the base-10 logarithm or the decimal logarithm, is a mathematical function that is the inverse of the exponential function., log10(Number)

Variables Used

Noise reduction - (Measured in Decibel) - Noise reduction is the process of removing noise from a signal.
Total Height of Wall - (Measured in Meter) - Total height of wall which is under the consideration.
Wavelength - (Measured in Meter) - Wavelength is the distance between identical points (adjacent crests) in the adjacent cycles of a waveform signal propagated in space or along a wire.
Horizontal Distance - (Measured in Meter) - Horizontal Distance is the instantaneous horizontal distance cover by an object in a projectile motion.

STEP 1: Convert Input(s) to Base Unit

Total Height of Wall: 3.1 Meter --> 3.1 Meter No Conversion Required
Wavelength: 2.1 Nanometer --> 2.1E-09 Meter (Check conversion here)
Horizontal Distance: 1.01 Meter --> 1.01 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

N = 10*log10((20*h_w^2)/(λ*R)) --> 10*log10((20*3.1^2)/(2.1E-09*1.01))

Evaluating ... ...

N = 109.57212714816

STEP 3: Convert Result to Output's Unit

109.57212714816 Decibel --> No Conversion Required

FINAL ANSWER

109.57212714816 ≈ 109.5721 Decibel <-- Noise reduction

(Calculation completed in 00.004 seconds)

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Credits

Created by Ishita Goyal

Meerut Institute of Engineering and Technology (MIET), Meerut

Ishita Goyal has created this Calculator and 500+ more calculators!

Verified by Suraj Kumar

Birsa Institute of Technology (BIT), Sindri

Suraj Kumar has verified this Calculator and 600+ more calculators!

< 4 Noise Abatement and Control Calculators

Noise Reduction in Decibels

Go Noise reduction = 10*log10((20*Total Height of Wall^2)/(Wavelength*Horizontal Distance))

Height of Barrier Wall given Noise Reduction in Decibels

Go Height of Crack = sqrt((Wavelength*Horizontal Distance/20)*10^(Noise reduction/10))

Distance between Source and Barrier given Noise Reduction in Decibels

Go Horizontal Distance = (20*Height of Crack^2)/(Wavelength*10^(Noise reduction/10))

Wavelength of Sound given Noise Reduction in Decibels

Go Wavelength = (20*Height of Crack^2)/(Horizontal Distance*10^(Noise reduction/10))

Noise Reduction in Decibels Formula

Noise reduction = 10*log10((20*Total Height of Wall^2)/(Wavelength*Horizontal Distance))
N = 10*log10((20*h_w^2)/(λ*R))

What is decibel?

The unit decibel is used because a one-decibel difference in loudness between two sounds is the smallest difference detectable by human hearing.

How to Calculate Noise Reduction in Decibels?

Noise Reduction in Decibels calculator uses Noise reduction = 10*log10((20*Total Height of Wall^2)/(Wavelength*Horizontal Distance)) to calculate the Noise reduction, The Noise Reduction in Decibels is the process of removing noise from a signal. Noise reduction techniques exist for audio and images. Noise reduction algorithms may distort the signal to some degree. Noise reduction is denoted by N symbol.

How to calculate Noise Reduction in Decibels using this online calculator? To use this online calculator for Noise Reduction in Decibels, enter Total Height of Wall (h_w), Wavelength (λ) & Horizontal Distance (R) and hit the calculate button. Here is how the Noise Reduction in Decibels calculation can be explained with given input values -> 109.5721 = 10*log10((20*3.1^2)/(2.1E-09*1.01)).

FAQ

What is Noise Reduction in Decibels?

The Noise Reduction in Decibels is the process of removing noise from a signal. Noise reduction techniques exist for audio and images. Noise reduction algorithms may distort the signal to some degree and is represented as N = 10*log10((20*h_w^2)/(λ*R)) or Noise reduction = 10*log10((20*Total Height of Wall^2)/(Wavelength*Horizontal Distance)). Total height of wall which is under the consideration, Wavelength is the distance between identical points (adjacent crests) in the adjacent cycles of a waveform signal propagated in space or along a wire & Horizontal Distance is the instantaneous horizontal distance cover by an object in a projectile motion.

How to calculate Noise Reduction in Decibels?

The Noise Reduction in Decibels is the process of removing noise from a signal. Noise reduction techniques exist for audio and images. Noise reduction algorithms may distort the signal to some degree is calculated using Noise reduction = 10*log10((20*Total Height of Wall^2)/(Wavelength*Horizontal Distance)). To calculate Noise Reduction in Decibels, you need Total Height of Wall (h_w), Wavelength (λ) & Horizontal Distance (R). With our tool, you need to enter the respective value for Total Height of Wall, Wavelength & Horizontal Distance and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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