For this gig, i would reduce background noise in any video and audio file up to 3 minutes long. it could be a file you recorded with professional equipment or with a cell phone. sounds like hums, thuds, horns etc. Note that it has to be a consistent sound that runs through the file.
Also note that this gig is only offering to clean up noise as best as is possible. Please do not expect movie quality from a clip shot with a cellphone.
the final "cleaned up" file is only going to be as good as the original file will allow it to be.
Audio file MUST be mp3 and video file MUST be mp4. thank you very much :)