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| AN3340 Datasheet, PDF (19/24 Pages) STMicroelectronics – Loudspeaker characterization and compensation | |||
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AN3340
Loudspeaker compensation
The amplifier selected to compensate the speaker response is the Sound Terminal® device
STA339BW. All the biquads are selected for the compensation. Figure 19 shows the
APWorkbench window.
Figure 19. Flat-screen-TV speaker imported frequency response
Next press key F5 and click on âTune Responseâ. Finally click on âRefine Responseâ an you
obtain the response shown in Figure 20.
Figure 20. Flat-screen-TV speaker frequency response after Speaker Tune
Figure 21 shows the system frequency response with the overall compensation.
Doc ID 18453 Rev 1
19/24
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