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How to use the Wind Noise Suppressor module

SigmaDSP & SigmaStudio Jingchang Dec 2, 2013 00:00 3 replies Original on forum ↗
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Jingchang Question
Dec 2, 2013 00:00

Now, I focus on the Wind Noise Suppressor module of SigmaStudio, however, there are few information can be found in the help. Could you give me help regarding the following questions?

1、The LP filters bank is consisted of two filters, as shown in below, all of them are low pass filters,so what’s the relationship between them? Are they cascaded or paralleled?How to configure their frequency value?

2、The magnitude-frequency response of the wind noise suppressor module is hardly to obtained in the physical experiment,so the Stimulation stimuli and Stimulation Probe are employed to simulated the magnitude-frequency response, however they are not work. Why? Is there any way to obtain the magnitude-frequency response of wind noise suppressor?

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ADIApproved Reply
Dec 2, 2013 00:00

Hi JingChan:

I'll answer the 2nd question. The magnitude response will not show up in Simulation plots because the effect is dynamic (signal dependent). You can measure it by entering white noise added with low frequency sine tone of opposite polairty between left and right channels. When active, the magnitude response of these high pass filters will not be different than the frequency response for a reqular 2nd order filter (similar to those in the SigmaStudio toolbox)

Hope this helps.

Regards

Miguel

ADIApproved Reply
Dec 2, 2013 00:00

Hello Jingchang,

Please do not start multiple threads asking the same question. We will answer your question as soon as we are able to. I will lock this thread and post my response on your original question thread, which can be found here: https://ez.analog.com/thread/38445

EZAdministrator Reply
Aug 2, 2018 00:00

This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

Thank you,
EZ Admin