Removing low end bass from spoken word files

I am using Wavepad 5.68 to record audio book and other spoken word materials.

I need to clean up the files and remove a "muddy" bass.

I am currently normalising the files and then equalising them.

But I am not that familiar with the correct settings.

You can hear a sample here:

Any help gratefully accepted

Thanks for your time

Ian Miller

Ok...so I applied a wee bit of the high pass filter and that seems to have worked. Cleaned up the "muddiness".