How to get rid of the 'bumps' in the joined audio tracks

Audacity Version: 2.0.4
Operating System WIndows 7 64 bit.
I joined multiple tracks together in Audacity and exported them as a WAV. I used time shift to drag the tracks so the beginning of the next track is at the end of the preceding one, which may not be so accurate but it snapped to position, so it shouldn’t be a problem. I tried entering the exact time for the clips in the 3 sections at the bottom of each bar the tracks are in, it didn’t work at all, how do I use the time editing bar at the bottom (Selection Start; End/Length; Audio Position)
Anyway, so when I listen to the finished piece you can hear where the clips are joined, there’s a little ‘bump’ or interruption. How do I get rid of this or prevent it from happening? I have attached 3 of the segments so you can see where the clips end, the final one and a link to what its meant to sound like on sogou

I can’t hear the final examples, but I believe you.

Tight musical editing has restrictions in order to make seamless cuts. The first illustration is the end of cut 2. The blue waves (magnified greatly) must be at zero (on both clips) for the join not to make noises. This one is not. If you joined the end of this clip to almost anything else, it going to make a click or pop.

The second illustration is of two different clips neither of which were at zero at the join. That’s the straight, flat, rising slice in the illustration at 1.9837. That will tick badly.

The video editors get around this by doing a very rapid cross-fade at the cut point instead of an actual cut (sloppy illustration).

You can also use such tools as Edit > Find Zero Crossings.

It’s also desirable for the waves to be going the same direction. The bottom wave is correct.

All this, of course in addition to making the show rhythm and presentation come out right.

Screen shot 2013-09-16 at 8.41.21 PM.png
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If you have an aggressively stereo show (instruments way left and way right), then there may be no graceful cut place. The left and right will always be different. In that case the cross-fade is the only answer.


Thanks Koz. You didn’t hear it because I didn’t get to upload it, I was only able to upload 3 files at a time and then had to wait for the post to be approved before I could reply, but then it won’t let me post new replies for some reason. Here it is:

Give us the audacity times of the disturbances. We believe you that there are bumps in the sound at the edit points. Since only you know where you put the edits, inspect them and make sure they conform to those rules.

I see serious data error gaps (illustration). That short flat spot isn’t supposed to be there. Is that what you’re talking about? Is that at an edit point?

Screen Shot 2013-09-18 at 12.14.07 AM.png

Hi Koz.
That is what I am talking about, the edit points. I can’t find the exact times since it goes by so fast when I listen to it, but I know they are in the same intervals as the duration of segments 1-3. By zooming in, the flat parts in your picture therefore must be what I am talking about. I will try the cross over method or the find zero crossings method. Thank you for your help.