Tutorials about Room Setup
The number of rays, especially the ones called late rays, will determine how accurate the results are. However, it will also extend the calculation time. There is no correct answer in how many rays you need. It all depends on the accuracy you need, the time you have, the complexity of your room, if the distribution of sound absorption is uneven, and more. However, there are some tips in the following videos.
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Calculation parameters & reliability of results
After a calculation, it is important to take a look at some of the preliminary results to gauge whether your calculation parameters were appropriate. Then, you can adjust the calculation parameters, mainly the impulse response length and number of late rays, and re-run the calculations so that your results are more reliable.
0:00 Intro
0:52 What is the impulse response length
1:39 Setting the impulse response length
3:40 Early vs. late reflections
4:28 Number of late rays
6:06 Checking reliability of results
6:50 Xi parameters
7:19 Curvature parameter
8:03 Bent decay curves
9:58 Ray loss
10:36 Outdoor calculations
11:51 Air conditions and model check
12:38 Outro
Specialist settings
Many users do not need to change the values in the specialist settings, but for the experienced user it can be a way to change the calculations in ODEON.
0:00 Intro
0:53 Impulse response details
1:46 Late rays scatter bands
3:29 Transition order
4:41 Early reflections
6:13 1/1 vs. 1/3 octave band calculations
7:06 Diffraction and scattering
8:44 Interior margin
9:24 Uniform vs. Lambert scattering
9:42 Outro
Investigation of simulation parameters
This is a tool for evaluating the optimum choice of the calculation parameters: “Number of early rays”, “Number of late rays” and “Transition order”.
0:00 Intro
0:30 Selecting jobs
1:34 Late rays and transition order
2:35 Selecting reference parameters
3:58 Running the investigation
5:36 Investigation results
8:25 Outro
