help About the Audacity noise removal tool

Hello

I am using the Audacity noise removal tool to remove noise in the Audio.
i am using this tool right -
At first I select only a small part of only Noise, then I click on "get profile" and at the and i select all the Audio and run the tool again to remove the noise.

it work almost perfect.

this is my settings:
Attachment 16289

the Source before the filter:
http://forum.videohelp.com/attachmen...4/original.mp3

and after:
http://forum.videohelp.com/attachmen...8564/after.mp3

in the before you can here Big noise and it sounds worse..
in the "after" the noise deleted perfectly but in high sounds there is strange phenomenon that i dot't know how to describe.
you just need to listen. it's importent that you listen on Headphones to be easier for you to notice that.


i know that if i will Increase the sensitivity to At least 17 then this phenomenon will not happen. but if i do this so i feel that it Damage the quality of the Audio and i don't want that.. on 0 it doasn't Damage the quality but this phenomenon occurs..

what i need to do to make it perfectly?


By the way,
this recording i made before this larn something on this post:
http://forum.videohelp.com/threads/3...will-be-better

thanks for the helpers!

Attached Images

   

Attached Files

• original.mp3 (748.6 KB)
• after.mp3 (748.6 KB)