I'm losing audio when I cut a clip.

Question

Sometimes, after I cut a HD clip in PE7, the first piece of the clip loses a second or two of its audio right at its end, just before the cut. There is still a waveform visible, but for the final couple of seconds, it's dead flat.
Wondering what causes that.

Answer 1

I have been thinking of this problem all night, and cannot come up with any reason for the Audio to be truncated either.
Back in the OP, you state that the Waveform is evident, but the signal disappears, right before the point that you Cut. Unless one has added a Transition to the Audio, I cannot see how this is happening.
For some background on what happens on the Timeline with a muxed (Audio & Video Clip):
1.) basically, what one gets, when they Import/Capture is a "proxy," a representation, of the AV Clip in the Project Panel. The physical file is not really in the Project, but instead, one has XML links to it. When the Clip is dragged to the Timeline, one has an "Instance" of that linked Clip reference. One could have that same Clip appear in any number of Instances.
2.) when one Razors/Cuts the Instance of that Clip, there are just instructions written, telling the program how much to extract from the physical AV file, when one Exports/Shares. Basically, you have created a "sub-Clip," but be careful as the term Sub-Clip has other meanings in other NLE programs, like PrPro. They are something a bit different. The physical AV file is never touched, just the reference to that Instance of it. It's all done with XML instructions.
As a test, once you have used the Razor/Scissors on the larger Clip, where you get the Audio dropout, Click-drag on that new Tail and extend the Duration of that "sub-Clip" a half-dozen, or so seconds. On the Timeline, this will push the rest to the Clips to the right. Now, test, and see if the Audio dropout stays where the original Cut was, or if it moves along with the Tail (now extended) of the sub-Clip. What happens?
Also, can you zoom the Timeline, but the vertical (the Audio and Video Track 1, assuming that is the location of this material) and also the horizontal, and then place the CTI (Current Time Indicator w/ the Edit Line) at the junction of the Clips, and do a screen-cap, so that we can see that spot, where the Audio drops out? There has got to be something happening there, like a default Audio Transition being added, or a Keyframe on Volume, etc. I can think of no other way for this Audio drop-out to occur - or a ghost in the machine????
Cutting the Audio should result in an abrupt stoppage in the Audio, just like the Video. That is why it's called a Butt Cut, and why we often add Transitions for both the Video and the Audio.
Good luck, and wish I had something besides a bit of basic background and some theory and tests for you.
Hunt