Sabin 3.0 - Frequently Asked Questions

1. Why doesn't Sabin take the shape of a room into account?
2. Should I handle a dome as wall or as ceiling?
3. How do I apply materials to a surface in a practical situation?
4. What other acoustical parameters should I consider?
5. Can I use MS-Access to modify the database?
6. Do you have localized versions available?
7. How much does it cost?

1. Why doesn't Sabin take the shape of a room into account?
Sabin is based on statistical calculations, using the total room volume and the total absorption present, assuming a diffuse sound field. This allows Sabin, in contrast to ray-tracing programs, to very quickly calculate the relevant acoustical parameters. In practice a diffuse sound field has proven to be a good approximation of reality.

2. Should I handle a dome as wall or as ceiling?
Sabin uses statistical calculations that assume a diffuse sound field. Therefore, it makes absolutely no difference on which surface type an absorption material is applied. The sole purpose of making a distinction between walls, ceilings and floors, is to aid you in selecting materials from the database, and to exclude unsuitable materials from being considered by the AutoSearch procedure. For instance, in case of a dome, the choice for ceiling or wall depends on the kind of materials that you allow on this surface.

3. How do I apply materials to a surface in a practical situation?
In order to get a diffuse sound field you should spread the materials over the surfaces. In practice, this is not always possible. Note that many absorption materials require a minimum area for the absorption coefficients given in the database to be valid.

4. What other acoustical parameters should I consider?
Although Sabin provides you with the most important acoustical parameters required for your design, you could also take into account the room dimensions, such that the occurrence of standing waves (modes) is avoided, and the pattern of reflections required to get a diffuse sound field.

5. Can I use MS-Access to modify the database?
Yes, you can use MS-Access 7.0 and later to modify or expand the database. However, you should not change the structure of the database.

6. Do you have localized versions available?
No, currently Sabin is only available in an English-language version.

7. How much does it cost?
Sabin is available for EUR 590,-. This includes free maintenance upgrades and free technical support.