Copy and Paste Causes Click

[akron]

Hey,

So I want to repeat a 4 bar measure over and over (for a bass track I recorded), so I set left and right markers, select the 4 bars and copy then move the markers and paste. When I play it back there is an obvious click when it move into the pasted part every 4 bars. Any tips or tricks for avoiding/removing that click?
PS: I am a drummer, so I play lousy guitar and bass. When I find a good 4 bar take I just want to repeat it. Drums I play beginning to end though.
BTW, I read the manual and searched Google, nothing on this.

Thanks!

 

[philbagg]

Sounds to me like you need to put a tiny fade on the start and end of the newly pasted clip. This gives it a few milliseconds to ramp up and down from the volume, whereas the original probably had relative audio before and after.

Good luck

 

[Zeppe]

Edit on the zero crossing point(the center line through the waveform). ex. cut descending wave at zero crossing point at the end of the region. Cut the ascending wave at the zero crossing point at the beginning of the region. This will result in a smooth continuous waveform without clicks and pops.

 

[hughjass]

I am a new ProTools user but until now had a lot of experience with Audacity and had the same issue. I found that when I zoomed waaaay in to the area where the original area of the copied section ended and the pasted section began, the wavelength flow was interrupted. What I mean is normally a wavelength has a nice even up and down roll above and below your zero point. What I found was that, say the original area ended with the the wavelength dipping below zero, but met up with the beginning of the pasted area, where at that point the wavelength was, say at its highest point above zero. So the wave had to make this abrupt straight vertical line. Thats where it would click.
My solution was to zoom into the begining of the original piece and see where the wave was (above, at, or below zero) at the beginning of the section you want to loop. Then edit (cut off a small piece) of the end of that segment so that the wave matches up with the beginning. Then you may have to time stretch a tiny bit so that it regains its original length.
Worked great for me. Good luck
Well looks like Zeppe beat me to it and maybe explained it much more simply.

 

[YorkshireTrippe]

my technique for this is to set the crossover point between the two clips manually for each instrument. You can normally find the first "attack" of the new section you put in and move the start of the clip to there. For Bass and drums its easy since they have an obvious attack point (you can see it on the wave form), clean guitars are also okay and with distorted guitars its more trial and error, but if there's enough distortion you may not even hear the click.

I find if you fade out then in again its normally pretty obvious, whereas this way if you get the attack spot on (to the sample) it sounds completely natural. Oh and do the zero-crossover thing Zeppe mentioned

 

[YorkshireTrippe]

also...I forgot to mention, did you know cubase has an option in the preferences to always cut secitons at the nearest point where the wave is at zero, that can really help

 

[legionserial]

I find if you fade out then in again its normally pretty obvious

The fade on the beginning and the end of an audio file in cases such as this has a duration of a split second. I do this as a matter of course to the beginnig and end of every audio file in a project. It's a very steep fade. It just serves to prevent the pop as the audio event comes in. It shouldn't be noticeable at all because normally you'd be fading silence either end of the event if you're doing it correctly.

From what the op says, if he's looping, he'd actually want to crossfade an overlap on the end of one clip with an overlap on the beginning of the next. Cubase has a crossfade function to do this for you.