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Microphone static removal

 
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Lurker



Joined: 26 May 2003
Posts: 4696
Location: The underworld

PostPosted: Sat Jul 17, 2010 10:51 am    Post subject: Microphone static removal Reply with quote

Hey guys,

I got a new laptop recently, and I've found that the microphone seems to pick up a fair bit of static. I'm hoping to find a method to remove the static on the fly so that I can do voice chats without sounding like I share a room with a giant generator.

Here's a sound sample, first with everything around me as silent as possible followed by me talking a little bit, just to give a sense of how loud the static is in comparison.

http://members.shaw.ca/lurkerhaven/Microphone%20Static.wma
(An external microphone isn't much better)

I couldn't find any software that could filter out the noise on the fly, so I was thinking that, perhaps I could:

1. Record the static
2. invert the signal (ie. static * -1)
3. add/play a loop of the inverted static to the rest of the microphone input

I figure... Static + -1*Static = roughly 0

Problem is that I can't manage to find software to invert the static either.


Perhaps one of you plays around with audio and would be able to give pointers?
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raptor
Ancient One


Joined: 02 Sep 1999
Posts: 4518
Location: Sandefjord, Norway

PostPosted: Sun Jul 18, 2010 4:21 am    Post subject: Reply with quote

The little I've experimented with headsets, I've found that the quality of the microphone have a lot to say on this.

Mainly I've been able to adjust this with volume settings, and often by changing plugs for the external microphone.

Never really used internal microphones so can't really comment on that (save for my DS, which is a chapter for itself. I still never been able to play Nintendogs because of that thing).
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