AN3340

Loudspeaker compensation

Doc ID 18453 Rev 1

11/24

If the speaker frequency response is not available in tabular format then, using a special

feature of APWorkbench, it is possible to overlay the graphical response in the equalizer

panel and manually add filters to simulate the speaker curve.

The reliability of the final result is strongly dependent on the quality of the input data. For this

reason the speaker frequency-response measurement must be carried out with extreme

care and a good microphone (with flat response if possible).

6.2.1

Speaker Tune tool in practice

Automatic compensation

No special knowledge is required to use the Speaker Tune tool to make the frequency

response compensation.

The following steps and accompanying figures will help you to get started.

1.

Upload the frequency response in Exel format by pushing the button indicated with the

red arrow in the tab named Equalization Editor in Figure 7.

Figure 7.

APW - import data - equalization editor