Tutorials about Materials and Wall Types

In order to do simulations in ODEON, all surfaces in the room need to get acoustics properties. In the material list you can choose absorption coefficients from our material library and add scattering. You can also add transparency or transmission for the surfaces. 

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Setting acoustic surface properties

Absorption coefficients, or “materials”, can be easily assigned to groups of surfaces, making the process easy even for complicated models. ODEON comes with a library of materials ready for use, which can also be customized. Also learn how to use scattering and transparency coefficients.

0:00​ Intro
0:24​ Surface list and layers
1:41​ Material library
3:39​ Assigning absorption coefficients
5:35​ Adding new materials
7:36​ Global and local room libraries
8:31​ Quick estimate of reverberation
9:42​ Material archive
10:22​ Scattering coefficient
13:06​ Transparency coefficient
14:17​ Bounding box for outdoor acoustics
14:54​ Outro

Wall types

Walls can be configured under different types in ODEON Room Acoustics Software. It is important to know when to use each of these types in order to properly calculate scattering and obtain accurate results.

0:00​ Intro
0:18​ Wall type options
0:42​ Exterior walls vs. interior walls
1:28​ Visualising exterior and interior walls
2:12​ Changing the interior margin
3:23​ Changing wall types
4:03​ Fractional walls
5:12​ Visualising wall scattering
6:08​ Outro

Sound transmission & industrial noise auralisation

If you have your reduction indices/transmission loss values in 1/3 or full octave bands, you can add airborne transmission properties to walls in your model. And if you have ODEON Auditorium or Combined, you can also listen to the result of adding transmission to your model. Here, we show an example in an industrial scenario.

0:00​ Intro
0:38​ Configuring transmission wall type
1:06​ Number of transmitted rays
2:01​ Entering reduction indices from Excel
3:22​ Manually entering/generating reduction indices
4:42​ Adding reduction indices to double walls
6:06​ Setting up auralisation of transmission
7:24​ Adjusting and listening to auralisation
8:57​ Setting acoustically transparent surfaces
10:26​ Outro

Material calculator

The material calculator allows you to define a stack of material layers, such as porous layers, perforated plates, and membranes, adjust the properties of each layer, and obtain the resulting absorption coefficients. You can then use this custom material for calculations in ODEON, or you can obtain other more specific types of results for research.

0:00 Intro
0:54 Finding the material calculator
1:32 Backing layer
2:17 Porous layers and graphs
3:35 Fluid layers
4:06 Perforated plates
5:42 Membranes
6:29 Context-sensitive help
6:56 Layer colors
7:21 Finite panels
8:12 Curve display options
8:40 Layer properties
9:23 Angle-dependent parameters
10:26 Adjusting layers and auto-fit
11:07 Saving the material
12:32 Editing custom materials
14:00 Exporting graphs and data
14:34 More info in the user manual
15:07 Outro