Room acoustics and acoustic properties, decibel A, B and C, Noise Rating (NR) curves, sound transmission, sound pressure, sound intensity and sound attenuation.
Noise is usually defined as unwanted sound - noise, noise generation, silencers and attenuation in HVAC systems.
Human physiology, air quality and comfort temperatures, activity and metabolic rates, health effects of carbon monoxide and more.
Logarithmic unit used to describe ratios of signal levels - like power or intensity - to a reference level.
Sound pressure filters that compensates for the hearing sensed by the human ear.
Acceptable noise - dBA - level at typical common locations.
In a room the sound or noise will reach the receiver as direct and reverberant sound.
An introduction to the nature of sound with frequencies, wave-lengths and octaves.
Shift in hearing threshold for men and women vs. age.
Room sound absorption and absorption coefficients for common materials like plaster walls, brickwork, plywood panels and more.
Acoustic power of sound per unit area.
Introduction to decibel, sound power, intensity and pressure.
Sound power from sources like fans, jet engines, cars, humans and more.
Sound Pressure is the force of sound on a surface perpendicular to the propagation of sound.
OSHA maximum A-weighted sound pressure levels allowed per day.
Calculate the speed of sound (the sonic velocity) in gases, fluids or solids.
Change in sound pressure level and the subjective human perception.
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!
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.