noise over audio file

[mlrs1996]

i play a game called geocaching.
im working on a puzzle cache that has an
audio file with morse code in it that i have
to solve. but over the morse code they have placed noise
(to make it harder to hear). i need to take the noise out
and slow down the audio so i can solve it.
i downloaded some software last night and cleaned it up some
but i dont know enogh about it to really get it clean.
the file is about 50sec long
would anyone be willing to help me out with this.
thanks

[aedipuss]

the original file might be easier to work with, not knowing what you've done.

sounds like a low pass filter might get rid of some of the added noise.

[mlrs1996]

im sorry i should have added that in there.
i made a second copy of the file and was playing around with that file.
the one i posted on here is the original.

[jagabo]

You can decipher it visually:



Here's the audio after filtering out everything but ~500 Hz.

[mlrs1996]

wow that was fast i worked on it for 3 hrs last night with no luck.
now comes the second part of decoding the code
if i knew which were dots and which were dashes
i could do it by the picture you added in
thanks for the help jagabo

[jagabo]

looks like:

dot dash___dot_dash_dot___dot___dash___dot dot dot dot___

I get:

ARETHUSA PASSWORD COMPROMISED

Does that make sense? There were a few other beeps before and after the section I posted.

[aedipuss]

seems to be a recurring thing?

http://forums.qrz.com/archive/index.php/t-277156.html

[mlrs1996]

thats awesome guys im sorry for reposting i searched for geocaching before i posted. but i didnt see anything.
what im doing is havin to figure out a web site (which is a seperate puzzle) and the username and password
so i can gain access to the next puzzle.
this is a cool but very tuff puzzle most people work for months on it before getting very far at all
it uses ciphers, book mark ciphers, morse code, binary codes, solitar cipher and thats just how far ive gotten
thanks for the help