Discussion Forum

The model gallery contains a scene that is set up to allow the calculation of the eigenfrequencies and eigenmodes of a typical listening room:

www.comsol.com/showroom/gallery/63/

Now, the location of the loudspeaker low-frequency woofers within this space has an effect on the level of excitation of the various room modes and the position of the listener will alter how much of the modal excitation is perceived.

I am trying to determine the optimal position of both the loudspeakers and the listener so that the optimally flat frequency response from 20Hz - 20kHz is achieved at the listening position.

The model does not take either of these elements into account. How can this be done?

- How would I add a sound source; can I model the diameter of the woofer in the scene and set this as a monopole source?
- Can I calculate a frequency response plot at the listening position?
- Is there a way to automate different positions (X,Y) of loudspeaker and listener in a brute-force type of approach to identify which configuration would result in the most desirable flat frequency response results?

Any help with this would be greatly appreciated.

Regards,
Joost