Help to fix an audio file?

[Trebor]

Any idea of how to avoid that for next time?

An aluminium/ aluminum/kitchen foil shield may help with a 5-10mm hole in it to let the sound reach the mic.

Don't permit the foil to touch anything metal, [If you get electrocuted sue Kozikowski it was his suggestion].

Hey what about a dud CD/DVD a shield: they're coated with Aluminium and have a hole in the middle for a mic.

[kozikowski]

Cellphones negotiating a connection of any sort can interfere with sound production. I was doing a simple voice capture and no matter what, I got odd sounds mixed in with the voice, and we were in an electrically quiet room. "Where," I said, "is your cellphone?"

I didn't have mine with me.

He pulled out his Motorola which was trying frantically to establish a connection in our cellphone challenged neighborhood. Turn that off and poof, no more problem.

<<<Hey what about a dud CD/DVD a shield:>>>

You need to form a Faraday Shield around the device --wrap it like a burrito -- and no hole can be larger than quarter wave at the interfering frequency.

http://en.wikipedia.org/wiki/Burrito

Koz

[whomper]

indeed
the number one rule for home studios
all cellphones in the house off
amongst other noise inducing gadgets