This is what I meant in my original reply, but unfortunately I'm sure it will be a waste of effort.
Noise transients are inherently very short and random, so they can be "phase cancelled" without the human ear being able to detect the individual "holes" caused by the process. Also with noise, the levels of unwanted sound are usually lower than those of the wanted recording and the frequency of the noise, although humanly detectable, is mostly in the upper ranges, where the human response deteriorates naturally, so any removal of the high frequency component will tend to give the similar results to a "top-cut" tone control, which is tolerable to most people. Unfortunately, this recording of a human voice is either at the same level or higher than that of the "assmbled choir", and it is well within the same frequency range as the wanted recording. Any attempt at removal will result in removal of not only the unwanted singing, but also a large proportion (if not all) of the wanted sound, slap-bang in the middle of its frequency range. As I said before, the theory's good, but in practice there are many more parameters to consider than just removal of unwanted noises. When I owned a sound studio, I was able to experiment for hours on removal of unwanted junk. I gradually learned with experience that apart from random noise removal, everything else just did not bring forth a fruitful result, so ut was a case of either re-record the original, or accept what was in the can. Unfortunately, weddings are inherently "one-offs" in real time, and just not re-recordable. Time to cut your losses and hope to get away with it, or 'fess up and face the consequences. Regards, Alan. www.theatreorgans.co.uk Admin: ConnArtistes, UKShopsmiths, 2nd Touch & A-P groups Shopsmith 520 + bits Flatulus Antiquitus ----- Original Message ----- From: Gregg Eshelman To: [email protected] Sent: Wednesday, May 09, 2007 12:20 AM Subject: Re: [AP] cleaning track audio Play the track, listen to it through headphones and sing along just like you did when you taped it. With a recording of just your voice you can load it and the audio track from the video into a program like Adobe Audition. Select your voice track and invert it. Copy it to the clipboard then Mix paste it into the audio of the live recording. It'll likely take a few tries of your 'singing' to get the synchronization correct. Another thing you can fiddle with is adjusting the volume of your voice track to adjust how much removal you do. This same trick works great for noise redustion. Find a part of the audio that's supposed to be silent, select it and use the noise reduction filter set to 90 to 95%, but check the box to leave only noise. Apply that freshly created noise removal filter to the entire file so you've just a lot of noise. Select the whole file, invert and copy. Undo the invert and noise reduction, then Mix paste and *BAM*, you've eliminated most of the noise without much hurting the quality of the rest of the audio. It's essentially a non-realtime version of how those noise cancelling headphones work, mixing 180 degree out of phase sound to cancel specific frequencies or waveforms. [Non-text portions of this message have been removed] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Adobe-Premiere/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Adobe-Premiere/join (Yahoo! ID required) <*> To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
