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Multiple Band Level Detector Readback

SigmaDSP & SigmaStudio RKSountrace Aug 2, 2024 00:00 2 replies Original on forum ↗
Thread Summary

Thread Summary

The user is using an ADAU1701 to analyze the frequency content of ADC input and wants to read back values from a multi-band level detector. The final answer explains that the trap.dat file within the IC1 folder contains the trap values for each band, allowing the user to read these values. The user confirmed this solution was exactly what they needed.
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RKSountrace Question
Aug 2, 2024 00:00

I'm using a ADAU1701 to do some analysis on the frequency content of the ADC input then pull those readings into my MCU. I've had no problem performing a readback of a single level detector value, as the value register is apparent. I've now built a multiple band pass-through level detector to in hope to readback the values at each band but it's not so clear what register I should be reading to pull back a value. Let me know if this approach makes sense and if there is a way to determine what register I should be reading from.

Audio Signal Processors

software

sigma studio 4.7

SigmaDSP Audio Processors

adau1701

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DaveThib Reply
Aug 2, 2024 00:00

Hello RKSountrace,

There is a folder created called IC1, provided that is the label of the 1701 in the config page. It usually is.

In that folder it will look like this:

If you open the trap.dat file it will list the trap values for each band of the level detector.

I answered this question in this post as well:

(+) ADAU1701 VuMeter Missing parameter address, how can i read that? - Q&A - SigmaDSP Processors & SigmaStudio Dev. Tool - EngineerZone (analog.com)

Dave T

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RKSountrace Reply
Aug 2, 2024 00:00

Thanks for the speedy reply this is exactly what I needed