The sound power generated from a wood planer is estimated to 0.01 W. The sound pressure in distance 10 m from the planner can be calculated as
Lp = 20 log ((Dρ c N / (4 π r2))1/2 / pref )
= 20 log (2 (1 kg/m3) (331.2 m/s) (0.01 W) / (4 π (10 m)2))1/2 / (2 10-5 Pa))
= 71 dB
Room acoustics and acoustic properties, decibel A, B and C, Noise Rating (NR) curves, sound transmission, sound pressure, sound intensity and sound attenuation.
The propagation of outdoors sound vs. distance and attenuation.
Distance and perception of voice.
The attenuation in a room depends on the location of the sound source and the receiver - and the room constant.
Acoustic power of sound per unit area.
Sound power from sources like fans, jet engines, cars, humans and more.
Doubling of the distance from a noise source reduces the sound pressure level with 6 decibel.
Calculate the speed of sound (the sonic velocity) in gases, fluids or solids.
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.