Have you tried looking in the Effects then Filter settings Gill ?
I think that should allow you to compensate and get the sound you want.
You will have to experiment with it though as I dont know which filter effects which sound in which way
There are a few other programs that may have more options such as Sonic Sound Forge and Blaze Medi pro.
This is some info from my version of Blaze Media pro :
The full-featured audio editor's capabilities include
Amplify, Null Amplitude, Insert/Delete Silence, Insert
Noise, Insert Pulse, Insert Sinus, Fade In/Out, Invert,
Normalize, Reverse, Delay, Flanger, Vibrato, Stretch, Mix.
Mix from File, Paste from File, Paste from Clipboard, Copy
to Clipboard, Delete Selection, Save Selection, Zoom,
Convert, Undo, Redo, Cut, Copy, Paste, Crop, Filters (Band
Pass, Low Pass, High Pass, Low Shelf, High Shelf),
Input/Output Volume Control, Audio Information Read/Write,
and much more. Furthermore, the audio editor can be used
for audio file recording from any available source (such as
cassette; record player; phone line; TV tuner audio; CD
player; line-In; auxiliary; microphone; wave-out; and wave-
out mix) as well
Doesnt mean much to me but sounds like it should sort your problem out