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 absorption and scattering
Absorption coefficients 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
0:29 Layer list and surface list
1:32 3D Render in the Material List
2:49 Set layers
3:34 Material library
5:01 Material colors
6:37 Colors for partial color blindness
7:36 Material information window
8:53 Assigning materials
10:18 Finding surface numbers
10:55 Alternative ways to assign materials
11:57 Manually editing absorption coefficients
13:07 Adding new materials
13:37 Importing material spreadsheets
15:45 Global vs. local material library
17:04 Quick estimate
18:25 Material list archive
19:59 How scattering works in ODEON
21:54 Entering scattering
22:58 Default scattering
23:29 Manually defining the scattering curve
24:18 Scattering due to diffraction
25:20 Transparency coefficient
27:58 Normal and exterior wall types
28:46 Fractional wall type
29:55 Surface clustering
30:30 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
Genetic Material Optimizer tutorial
The Genetic Material Optimizer is a tool that will automatically adjust your materials’ absorption coefficients in order to get a closer match with measured results. This is useful when designing acoustical treatment for a new room and the model must match the real room, but some materials are not well known. Alternatively, you can define a target range for parameters in a new room, in order bring your parameters within the desired range.
0:00 Intro
1:10 Genetic algorithms
1:50 Defining the model and jobs
2:45 Loading measurements from impulse responses
4:21 Loading measurements from a spreadsheet
6:33 Defining target range curves
7:18 Selecting parameters for the optimization
8:35 Setting the accuracy
9:04 Making a backup of your model
9:34 The Genetic Material Optimizer
10:19 Setting the search range
12:20 Running the optimization
13:24 Best fitting and last error decrease
14:18 Adjustment of materials
15:00 Summary of procedure
Material exchange format
ODEON’s acoustical material exchange format allows easy import of material manufacturers’ material data into ODEON.
0:00 Intro
1:15 Downloading the template
1:54 Blue headers
2:20 Red headers
3:40 Company name and product description
5:00 Absorption coefficients in full octave bands
5:52 Properties for ODEON 19 and later
6:12 Company logo and product images
7:19 URLs to webpage and documents
7:46 Absorption coefficients in 1/3 octave bands
8:28 Scattering and diffusion coefficients
9:43 Publishing the materials on ODEON’s website
