Sound - Attenuation and Speed vs. Sound Frequency and Air Humidity

Related Topics

• Acoustics

Room acoustics and acoustic properties. decibel A, B and C calculations. Noise Rating (NR) curves. Sound transmission through walls. Calculate 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

Air - Speed of Sound vs. Temperature

Speed of sound in air at standard atmospheric pressure with temperatures ranging -40 to 1000 °C (-40 to 1500 °F) - Imperial and SI Units.

Gases - Speed of Sound

Speed of sound in some gases at zero degrees Celsius and atmospheric pressure.

Lined Sheet-Metal Ducts - Sound Attenuation

Noise attenuation in rectangular straight, lined, sheet metal ducts.

Liquids - Speed of Sound

Speed of sound in common fluids like water, glycerol, kerosene and more.

Noise Attenuation in Chambers

Chamber sound attenuation.

Propagation of Outdoor Sound - Partial Barriers

The transmission of outdoor sound through and around barriers - the Fresnel Number.

Propagation of Sound Outdoors - Attenuation vs. Distance

The propagation of outdoors sound vs. distance and attenuation.

Seawater - Attenuation of Sound

Attenuation of sound in seawater vs. temperature and frequency.

Solids and Metals - Speed of Sound

Speed of sound in solids and metals like aluminum, brass, concrete and more.

Sound - Attenuation and the Directivity Coefficient

The attenuation in a room depends on the location of the sound source and the receiver - and the room constant.

Sound - Frequency, Wavelength and Octave

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

Sound - Room Attenuation in Direct Sound Fields

Room size, absorption characteristics - and attenuation in direct sound fields.

Sound Attenuation - Main Duct to Branch Ducts

Sound attenuation from main ducts to branch ducts.

Sound Attenuation in Duct Elbows

Noise attenuation in duct elbows by reflected sound.

Sound Transmission through Flanking Paths

Sound transmitted through duct walls, floors and ceilings.

Sound Transmission through Massive Walls or Floors

Sound transmission and attenuation in building elements like massive concrete walls or floors.

Speed of Sound - Equations

Calculate the speed of sound (the sonic velocity) in gases, fluids or solids.

Speed of Sound vs. Elevation, Temperature and Air Pressure

Altitude and speed of sound, temperature and pressure.

Ventilation Systems - Acoustic Calculation Procedure

Acoustic noise calculation procedure HVAC systems.

Water - Speed of Sound vs. Temperature

Speed of sound in water at temperatures ranging 32 - 212°F (0 - 100°C) - Imperial and SI units.

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.