"Clean up" Audio

Without a sample of the recording it's impossible to say really. There's no magic 'makes it sound better software'.
 
No it is "confidential" cant really send it out.
I just think it was a bad recording, using it for "evidence"

Well as soon as you change something you are interfering with the evidence. Have a google at evidence preservation & chain of handling. You change one bit (as in bit & bytes) then you can kiss it goodbye.
 
Have a go at it with one of those equalizers that is what i have used before
 
You might be able to do something with Audacity.
That or a erm "borrowed" version of Wavelab.
 
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marine just be careful with this business...getting ripped off is easy. You hit the limit of what is technically possible pretty damn fast. After that it requires black magic, which isn't exactly something one can reliably buy.

copa is on the right track though...depends heavily on whats wrong.
 
If you are prepared to dig down deep within its features, the excellent freebie Audacity has pretty much all the tools you could want. I use it for cleaning up meeting recordings, converting LPs to MP3, recording streaming audio and removing the transmission gaps automatically, and more. But you do have to do some work to master its more esoteric abilities. The help system is good, and its ubiquitousness means there are millions of users out there to help online.
 
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