Noise Rating (NR) - Free Online Calculator

Related Topics

• Acoustics

Room acoustics and acoustic properties, decibel A, B and C, Noise Rating (NR) curves, sound transmission, sound pressure, sound intensity and sound attenuation.

• Noise and Attenuation

Noise is usually defined as unwanted sound - noise, noise generation, silencers and attenuation in HVAC systems.

Related Documents

NC - the Noise Criterion

Noise Criterion - NC - level is a standard uesd to describe the relative loudness of a space within a range of frequencies.

Noise Criterion (NC) - Free Online Calculator

Calculate Noise Criterion (NC) from octave band pressure levels.

Noise Criterion vs. Noise Rating and dB(A)

Comparing Noise Criterion (NC, NCB, RNC) to Noise Rating (NR) and dB(A).

NR - the Noise Rating Curve

The Noise Rating (NR) Curve used to determine acceptable indoor environments for hearing preservation, speech communication and annoyance.

Octave Band Frequencies

The octave and the 1/3 octave band frequencies.

PNC - the Preferred Noise Criterion

A noise measurement system for continuous or ambient noise in indoor environments.

Preferred Noise Criterion (PNC) - Calculator

An online Preferred Noise Criterion (PNC) calculator.

Sound - Frequency, Wavelength and Octave

An introduction to the nature of sound with frequencies, wave-lengths and octaves.

Sound Pressure

Sound Pressure is the force of sound on a surface perpendicular to the propagation of sound.

Ventilation Systems - Acoustic Calculation Procedure

Acoustic noise calculation procedure HVAC systems.

Search Engineering ToolBox

• the most efficient way to navigate the Engineering ToolBox!

SketchUp Extension - Online 3D modeling!

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp from the Sketchup Extension Warehouse!

About Engineering ToolBox!

• Contact - Citation - Copyrights - Advertising - Warranty and Liability

Privacy

We don't collect information from our users. Only emails and answers are saved in our archive. Cookies are only used in the browser to improve user experience.

Some of our calculators and applications let you save application data to your local computer. These applications will - due to browser restrictions - send data between your browser and our server. We don't save this data.

Google use cookies for serving our ads and handling visitor statistics. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected.

AddThis use cookies for handling links to social media. Please read AddThis Privacy for more information.

Advertise in the ToolBox

If you want to promote your products or services in the Engineering ToolBox - please use Google Adwords. You can target the Engineering ToolBox by using AdWords Managed Placements.