On baffle measurement Q with RM

[jhollander]

Sorry but I’m a bit confused.

If I measure the gated response of a woofer on the proposed baffle at 1 meter, on axis, how do I handle the baffle compensation in Response Modeler?

Can/ should I ignore the RM baffle diffraction response model?

The woofer is on a 7 inch baffle so I should see the edge in the gated response. Shouldn’t I also have measured the baffle step gain?

[duanebro]

If you measure on baffle, then you shouldn't need rm at all.

Duane

[curt_c]

Presuming the measurement was made far from adjacent surfaces, and the proper gating was used, all of the diffraction effects will be included in your .frd file, including baffle step.

If your resultant speaker response provides a reasonably flat on axis response, you will have compensated for baffle step as well.

C

[jhollander]

Thanks for the response, this helps. I'm not sure what reasonably flat means. So far I’m comparing to the published data and looking for gross measurement errors.

[curt_c]

Depending on the actual power response, the on axis response as measured on the design axis may not necessarily measure flat when voiced to 'sound' flat. Also, depending on the intended speaker placement with respect to the room boundaries, many choose not to completely compensate for the baffle step, resulting in a measured slighly rising response up into the midrange. For these and other reasons, the optimal response may not measure flat.

C