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waterskier2007's avatar

How can i use programming to eliminate static in an audio clip?

Asked by waterskier2007 (2050points) July 22nd, 2008

I need to eliminate some static in an audio recording. i was in an engineering class for introduction to programming and we used matlab to do this. the problem is that i dont remember the code and i also dont have access to matlab. i am on a mac and i have access to xcode as well.

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10 Answers

iwamoto's avatar

hmm, fastest thing i can come up with right now is audicity, it has a plugin for it if i remember correctly, you could give it a try

AlexChoi's avatar

You could use a program like Audacity to do something similar… run some kind of low pass filter or what not

ccatron's avatar

iwamoto and alex beat me to it…audacity will do it for you…

http://audacity.sourceforge.net/about/features

waterskier2007's avatar

ehhh can i do the same thing in garage band. i downloaded audacity once and didnt like the interface but if i have to use it i will

waterskier2007's avatar

if i am going to do it in audacity, how would i go about this?

Skyrail's avatar

Audacity is good…buuut…removing noise via programming? Genius. If you ever find the code again (even if I don’t understand MATLAB) please tell me because that seems pretty cool :)

waterskier2007's avatar

@skyrail, yeah it was pretty tight. i know the code is still available online so if i find it i will send it to you. i believe all we did is analyze the shape of the wave where it was just the static, and then we passed the audio clip over a filter designed to remove the noise. it was really good and we cleaned up a clip amazingly

mehmetaydin3's avatar

Remember you can’t get the noise out %100. If your line is staticy, hissy, then you should invest in better gear. Starting with whichever gear is the cheapest..

waterskier2007's avatar

it wasnt some audio that i was recording, it was for a project, we were given an audio clip. they are prerecorded we cant record new ones

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