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Level detector designer coefficient

SigmaDSP & SigmaStudio Mack Apr 27, 2015 00:00 1 replies Original on forum ↗
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Mack Question
Apr 27, 2015 00:00

Hello,

I would like to apply level detector designer module(Pass Thru type) on ADAU1761.

The module has 5 changeable parameters, Center Frequency, Bandwidth, Q, Time constant and Decay.

When I change one of them, 5 coefficients are written to ADAU1761. I have not found any relation between the parameters and the coefficients anywhere. To implement MCU-based design, I need what coefficients are sent to ADAU1761 from MCU.

Could I get a folmula to derive coeffients from 5 parameters?

Best Regards,

Mack

Audio Signal Processors

SigmaDSP Audio Processors

adau1761

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b7441f9cc46761bc3daf9a02a4e59691.png-262x165.png
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045262b9c011a5cae86cb498002ace16.png
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ADIApproved Reply
Apr 27, 2015 00:00

Hi Mack:

The formulas used for calculating these coefficients are the same formulas as the ones used on the second order filters within the SigmaStudio toolbox. Those formulas are available in our wiki.

Please let us know your progress.

Regards

Miguel