ADAU1761 SigmaStudio 4.1, detail information about Fixed / Beam Forming Designer
Thread Summary
The user inquired about the Fixed Beam Forming Designer in Sigma Studio ver.4.4 for the ADAU1761. The final answer clarified that the Fixed BF module implements a delay subtract beamformer, but due to a bug, the signals are added instead of subtracted, causing the measured beampattern to differ from the GUI. The user tested the module with 15 cm and 35 mm MEMS spacing, observing issues with the null at 180 degrees and front-end attenuation at 15 cm. The support engineer explained that the null at 180 degrees is due to spatial aliasing and the front-end attenuation is due to the signals being in phase at 1143 Hz, suggesting the user try different MEMS or configurations for better results.AI Generated Content
I use the ADAU1761 with the Sigma Studio ver.4.4.
In the Tool Box, we can find two beam forming function
- Adaptive / Adaptive Beam Forming Algorithm
- Fixed / Beam Forming Designer
But in the on-line help, they are not included.
On the Wiki, I could find below. Are there any documents or information about the "Fixed / Beam Forming Designer"?
Adaptive Beam Forming
wiki.analog.com/.../adaptivebeamforming
SigmaStudio ADI Algorithm Resource Summary
wiki.analog.com/.../adialgorithmsresourcetable
Hello Euglena,
They are located here in the Tree Toolbox under ADI Algorithms:
You are correct that the beamformer designer does not seem to have a Wiki page for it.
The trickiest thing about it is the small button that is unlabeled that is how you open up the window to see all the controls and settings. Once the window is open it should be easy to understand.
Dave T
Thanks for your reply. And I apologize that I could find your reply until now...
I understand that there are not update wiki page
I could found that the setting window appeared by the small button. I would like to continue trying with it.
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