Groups > sci.electronics.design > #460113

Re: Microphone risk factors

From	Jan Panteltje <pNa0nStpealmtje@yahoo.com>
Newsgroups	sci.electronics.design
Subject	Re: Microphone risk factors
Date	2017-05-13 19:12 +0000
Organization	Aioe.org NNTP Server
Message-ID	<of7lq8$136v$1@gioia.aioe.org> (permalink)
References	<of4o66$dcl$1@dont-email.me> <mbhL8BP0acdfEJUhnospam@invalid.com> <of4t4l$7ce$1@dont-email.me> <of7f7b$p5o$1@gioia.aioe.org> <of7kne$tbc$1@dont-email.me>

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On a sunny day (Sat, 13 May 2017 11:57:17 -0700) it happened Don Y
<blockedofcourse@foo.invalid> wrote in <of7kne$tbc$1@dont-email.me>:

>You're surrounded by the noise of the mechanism (you're making 35-75
>tablets concurrently) and trying to hear a little "pop" that is
>muffled inside a steel box -- that is MOVING past your sensor.

Digital signal processing.
The problem is not the mike.

You need the spectrum of the 'pop', do an FFT, and look for it.

There are other ways, train a neural net etc etc.

No mike is perfect.
And this seems in the LF range, no wideband needed.

It is just a specific pressure wave,

But I do not want to start an in depth discussion about mikes,
I had my part of that, worked in TV and film studio.
Almost as many opinions as people.
And I have no experience with MEMS mikes.

You could try learning to write some code.
In C that is :-)

Endlessly babbling about it gets you nowhere.

Thread

Microphone risk factors Don Y <blockedofcourse@foo.invalid> - 2017-05-10 21:27 -0700
  Re: Microphone risk factors Phil Allison <pallison49@gmail.com> - 2017-05-10 21:39 -0700
  Re: Microphone risk factors jrwalliker@gmail.com - 2017-05-11 07:01 -0700
    Re: Microphone risk factors Don Y <blockedofcourse@foo.invalid> - 2017-05-11 11:06 -0700
      Re: Microphone risk factors piglet <erichpwagner@hotmail.com> - 2017-05-12 09:02 +0100
      Re: Microphone risk factors "Michael Kellett" <nospam@invalid.com> - 2017-05-12 16:02 +0100
        Re: Microphone risk factors Don Y <blockedofcourse@foo.invalid> - 2017-05-12 09:37 -0700
          Re: Microphone risk factors "Michael Kellett" <nospam@invalid.com> - 2017-05-12 18:08 +0100
            Re: Microphone risk factors Don Y <blockedofcourse@foo.invalid> - 2017-05-12 11:02 -0700
              Re: Microphone risk factors Phil Allison <pallison49@gmail.com> - 2017-05-12 17:44 -0700
              Re: Microphone risk factors Terry Newton <nbill@bellsouth.net> - 2017-05-13 17:19 +0000
                Re: Microphone risk factors Don Y <blockedofcourse@foo.invalid> - 2017-05-13 11:57 -0700
                Re: Microphone risk factors Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-05-13 19:12 +0000
                Re: Microphone risk factors Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-05-14 08:40 +0000
                Re: Microphone risk factors Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-05-14 09:17 +0000
                Re: Microphone risk factors Jan Panteltje <pNa0nStpealmtje@yahoo.com> - 2017-05-14 10:49 +0000
                Re: Microphone risk factors Terry Newton <nbill@bellsouth.net> - 2017-05-13 19:26 +0000
                Re: Microphone risk factors (OT -- long) Don Y <blockedofcourse@foo.invalid> - 2017-05-13 13:37 -0700
            Re: Microphone risk factors "dcaster@krl.org" <dcaster@krl.org> - 2017-05-13 11:06 -0700
              Re: Microphone risk factors Don Y <blockedofcourse@foo.invalid> - 2017-05-13 12:11 -0700
              Re: Microphone risk factors krw@notreal.com - 2017-05-13 20:36 -0400

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