| Approximate price
|
€10.000 - 100.000 per model. In addition come special transducers as a one time investment |
€10.000 one time investment |
| Time needed to create the model?
|
Weeks or months |
Hours or days. With dxf import, 3D drawings from the architect are enough. Other types of room modelling can be used as well |
| Time needed to get the results?
|
Days or weeks |
Minutes or hours |
| Are the absorption coefficients correct?
|
No. The scale model is build with other materials than in the real room |
Yes, as far as absorption data are available |
| How is the reverberation time found?
|
The model is adjusted to meet the assumed target value |
Calculated from a simulation taking the geometry and location of absorption into account |
| Other room acoustic parameters like Clarity, Strength, LF? |
Based on the assumed reverberation time and the modelled geometry. For LF a special figure-of-eight microphone is needed |
Calculated from a simulation taking the geometry and location of absorption into account |
| Can I listen to the result?
|
Yes, it is possible using a measured impulse response, but the quality is poor due to limitations of transducers; only severe acoustical defects may be heard |
Yes, with high fidelity out-put in surround sound or binaurally; even multichannel auralisations of a whole orchestra are possible |
| Can I implement loudspeakers in the model?
|
No |
Yes, both traditional ones and line arrays |
| How to make changes?
|
Rebuild the changes in the model and measure again - may take weeks |
Change drawing, change absorption type and recalculate by a few mouse-clicks |
| Can acoustical defects be detected?
|
Possible, but difficult |
Yes, with 3D-billard, reflecto-gram or auralisation. See two examples: focusing and flutter echo |
| How can I ensure an even sound distribution? |
Only with rough approximation, due to the limited number of measurement positions |
With the Grid-response the distribution of all acoustical parameters can be displayed and weak spots can be identified |
| Can I find how much surface structure is needed for diffusion? |
Yes, if it is possible to build the structure in the small scale |
In some cases diffusion can be modelled directly by the details, but with very small structures it may be better to measure the scattering coefficient in a lab, and apply the frequency dependent scattering coefficient in Odeon |
| How do I design reflectors?
|
Investigations with a laser beam; only possible if the modelled surfaces can reflect light |
With reflector coverage and 3D-reflection paths |
