Hello Experts,
My microphone picks up everything like dogs barking a block away. Or noises people make when passing by.
Is there any way to program or filter the mic so only strong sounds like voice can be transmitted,
 disregard any other source further tan 15 cm?
RGuillermoProject ManagerAsked:
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John GobertEnterprise Systems ConsultantCommented:
I'm assuming you're running Windows, correct?  When the mic is connected, right click on the volume control icon in the bottom right task bar then recording devices.  That should open the "Sound" applet and show you a list of recording devices.  Click on the one corresponding to your mic and hit "properties" at the bottom right.  Look through the options available in the properties dialog box to see if you have any noise cancellation options available.  I've included a screenshot of the same box from my laptop as an example.

Microphone Properties Dialog
RGuillermoProject ManagerAuthor Commented:
I have that those options selected, still the mic too sensitive and magnifies....
John GobertEnterprise Systems ConsultantCommented:
Check under the "levels" tab and see what the values are.  If it is turned up too high with additional gain added then it can do what you're describing.  

What kind of mic are you using?
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Noise cancelation usually deals with avoiding feedback built-up. Noise cancelation needs to have input data to use in the cancelation feedback.
Your data acquisition has to filter there are filters that deal with frequency limits that might help exclude the frequency of the dog barks.

Your best bet is to lower the sensitivity of your mic. (Lower the volume on the mic config)
I.e. The applied voltage accross the mic If I am not mistaken is what controls its level of sensitivity.

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Dave BaldwinFixer of ProblemsCommented:
The effect you are looking for is called a 'noise gate'.  A 'noise gate' blocks the sound until it is loud enough and then it allows the sound to pass thru.  I have only seen them in external devices.  I don't know if there is a basic effect in Windows for that.
RGuillermoProject ManagerAuthor Commented:
Thanks to all Exsperts!
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