Anyone have a decent free DSP program?

[Gilligan]

Hey, I have some old radio recordings of federal freqs. There's quite a bit of background noise but the voice is decent quality. I'm wondering if anyone knows of a DSP (digital signal processing) program that I might be able to use to filter out the noise. I can almost make out what the guys are saying. If anyone wants the sound files, I can zip them up. They are probably about 1-3 megabytes in size. I really think even an audio equalizer program might work. Maybe I should look at what options windows media player has. They are all .wav files. Thanks for any suggestions.

 

[Josh]

Well... there is an "equalizer program" built into winamp. I use that as my default media player... it works great.

Don't know about DSP though..
-Josh

 

[crayon]

I'm wondering if anyone knows of a DSP (digital signal processing) program that I might be able to use to filter out the noise.

Try Audacity. It's a great freeware sound editor. It includes plugins for noise removal and other things that may be handy.

Basically, you find a section of silence, get the noise profile of this section, then the program will remove whatever the "noise" is from the whole recording.

HTH's. Good luck!