How do you implement a 4 microphone Beamformer

SigmaDSP & SigmaStudio Weston Mar 29, 2022 00:00 2 replies Original on forum ↗

Weston Question

Mar 29, 2022 00:00

Hi,

I am using 4 mics, 15cm between mics, do we have a 4 mic beamforming function or tool? Or a suggested algorithm?

Edit Notes
I split off this post to its own question and edited the title. (Dave T)

[edited by: DaveThib at 9:10 PM (GMT -4) on 29 Mar 2022]

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DaveThib Reply

Mar 29, 2022 00:00

Hello Weston,

Let me study this and get back to you. I do not have a pre-made example so let me work on it.

One quick question, What kind of resolution in degrees are you looking for?

150mm is very wide spacing. What frequency bandwidth are you looking to steer?

Thanks,

Dave T

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Weston Reply

Mar 29, 2022 00:00

Hi Dave,

What kind of resolution in degrees are you looking for?----

I envisage the implementation method. The software parameters fix the incident angle at 0 degrees to test the intensity of different angles to confirm the field type. The field type I want to achieve is shown in the figure:

150mm is very wide spacing. What frequency bandwidth are you looking to steer?---

I envision it can be implemented in 1kHz bandwidth.

Thank you for your attention.

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