Hello everyone,

perhabs you can help me:
I have changed a file with the noise reduction filter in Audition - marked the noise-only part of the file, had it analyzed, then filtered. The overall result is not satisfying though.

I get a very high "small" piping kind of sound, very faintly but distinctly audible, very annoying in the resulting DVD (the file is part of a video-project).

Additionally the whole sound now is kind of flat, like robotic voices almost, as if frozen into icicles, if you get my meaning.

Any suggestions?
I have got the orginal files, but in-between steps I cut the video and audio to match (it's two audio-files from two VHS and one video-file - same movie), and this matching took me quite a while (and some sweat ), so I would rather try to restore the cut file, before going through the whole process over again.

Thanks for any help.

I do get your meaning. Unfortunately some kinds of sound, especially human speech, have very noise-like qualities which noise filter tools tend to remove along with actual noise. For example, distinguishing a sibilant or a cymbal from background hiss is pretty much impossible for computer software.

With Adobe Audition you can lower the filter strenght to a very low level to get slightly more natural results. However you can't totally remove the noise and keep the audio natural. That's just not possible.

I personally would in most cases just disregard the noise and keep the source unfiltered thus preserving the original details and life-likeness of the sound. If the noise is really bad and you have to filter it out, you'll just have to live with the robotic sound.

I fear it will take you more sweat. Noise reduction is a lossy process, what's filtered out is gone forever
Maybe it will comfort you to know that you are not the first one who had to learn that it is better to keep at least the most important steps on the way to the final result.

Thank you guys for the fast replies!

I thought as much (would have to do it all over again... )
Anyway, I learned smoething in the process.

CU around.