Laurence, I used Audition 1.5 for a long time, and liked it. There are two things I can suggest. First,make sure that the sound you are hearing is really part of the file and not a problem with Audition's playback. Create the file using the center channel extractor and then play it with another program such as Windows Media Player.
Second, I was thinking that the center channel extractor did more than just combine channels, and it is possible that combining channels will do most of what you want to do. Try just combining channels and see whether it avoids the problem and gets you most of the way there or not. I think there is an item to do that but don't remember where it is any more, or you can probably do it by creating a monaural file. I had to let Audition go because I couldn't get it to install on a 64-bit system. It was more complicated than that as I had upgraded from previous versions and couldn't install one of the previous versions that was required. I wonder, though, if there could be some incompatibility with Windows 7. Best regards, Steve Jacobson On Sat, 28 Jun 2014 13:45:51 +0100, Laurence Taylor wrote: >This is what used to be called Cool Edit. >I am using Audition 1.5 to clean up recording of old 78rpm records. >The main process involves the "Centre Channel Extract" function >(since most surface noise is out of phase), and it works very >well, often needing nothing else to be done. >However, the resulting file has a low-level repeated burst of >phase distortion, a sort of "meep ... meep ... meep", which can >be very distracting. >I've tried playing with the settings but nothing seems to help >much, likewise filtering doesn't assist as the meeps are too >wideband. >Any ideas as to what it cold be and whay I could do about it, or >is it just something I'll have to put up with? (Up with which I >will have to put). >It's certainly much better than the frying bacon that was there >before! >-- >rgds >LAurence ><>< >...Jesus saves - but Joseph scores on the rebound >---Taglines by Tagzilla (tagzilla.mozdev.org)