Glitch in an Audio Edit

[dachay2tnr]

This is probably an easy one (or maybe not). I was recording 3 vocalists in harmony. On one particular note (an oooh) one of the three singers held the note too long.

Rather than re-singing the part, I thought I could fix this by removing a little section out of the middle of the "ooh" waveform, and then sliding the ending part of the note over to match. (I thought this to be a better approach than just cutting off the end of the note, which I felt would be too abrubt a stop.)

It worked beautifully - except you could hear some type of glitch where the two pieces came together. I'm pretty sure I had the "zero crossing" setting enabled when I did my cuts.

I thought I read somewhere that this is where you would use a "crossfade". However, I tried to apply one and it didn't seem to make an audible difference (could be I was applying it wrong). Any help here? Usually all my cuts have been in silent sections. This is the first time I've tried to make a cut in the middle of a wave. Can it be done?

 

[AlChuck]

The tone of someone singing changes so much in time... even though it sounds like a sustained tone, it's probably varying quite a bit as their breath wears down, etc. So if you cut the tone in the middle, even if you connect them at a zero crossing, it's bound to have some unnatural abrupt change to it.

Here's some other experiments to try in this kind of situation:

(1) Fade out the end of the note.
(2) Time-compress the note so that it's a little shorter. If the amount of time change isn't large, then the recalculated wave form will sound virtually identical to the original, and fit perfectly.

-AlChuck

 

[dachay2tnr]

Thanks, Al-C. I hadn't used the time change features in Calkwalk before and hadn't thought about them. Great idea, sounds like a perfect solution. I'll play around with it tonight.

 

[Virulent]

Defeintly a good idea, what I'd usually do is fade out at the end of the first half and fade in at the beginning of the second, make sure they are *very* quick so they aren't noticable but when you move them together you won't get a clip from cutting off a non-zero crossing point because the fades make sure they are at zero.