Audacity Forum

Hi:

There appears to be a bug in 2.0.6. When I make a cut, undo it, and then make a different cut and attempt to undo it, audacity does not seem to remember the 2nd cut and reverts back to the starting position of the first cut instead. This did not happen with 2.0.5. In that version, all cuts were remembered. I am reverting back to 2.0.5 until this is resolved.

Thank you.

mdubin

mdubin wrote: There appears to be a bug in 2.0.6. When I make a cut, undo it, and then make a different cut and attempt to undo it, audacity does not seem to remember the 2nd cut and reverts back to the starting position of the first cut instead. This did not happen with 2.0.5. In that version, all cuts were remembered. I am reverting back to 2.0.5 until this is resolved.

I'm can't reproduce this with Audacity 2.0.6 and OS X 10.9.4
Steps:
- new project
- generate 30 seconds tone
- select 3 - 10 seconds
- cut
- undo
-- cut region is restored and selection is from 3 - 10 seconds
- select 13 - 20 seconds
- cut
- undo
-- cut region is restored and selection is from 13 - 20 seconds

-- Bill

Here I'll give you an example.

Under 2.0.6, I imported an audio track and then made a cut starting at 8:38:125. I found it was not to my liking so I did an undo and decided to cut starting at 8:37:650. It also was not to my liking so I did an undo. The starting point after this undo should have been 8:37:650 but instead it was at 8:38:125.

I reinstalled 2.0.5 and did the exact same thing. After the 2nd undo, the starting point was at 8:37:650 like I expected.

I hope this explains it.

Thank you.

mdubin

By "making a cut," you mean you deleted everything after that time?
Koz

Not everything, just from that point till another point which could be several minutes later. In my situation, the end point was not changed, just the starting point.

mdubin

Thank you. When you're waving the "B Word" around, it's good for us to be able to exactly reproduce your work.

"When you have a 44100, 32-bit Stereo show duration of XX and you cut from YY to ZZ, etc."

Was the original show compressed (MP3, etc.)?

Koz

The original was a WAV file ripped from a CD. Sorry I cannot do any better but to describe what happened. Maybe I was being too strong by using the "B" word and I am sorry. But cutting audio, listening to the results, and if not to my liking undo the cut is something I have done countless times in Audacity. I always expected "undo" to restore the cut exactly. But that is not happening in 2.0.6 when doing repeated cutting and undoing.

All I can suggest is to load a WAV (of FLAC) file into audacity. Make a cut and undo it. Then make a slightly different cut and undo it. Is the starting point the same as from the 2nd cut or from the 1st cut?

FWIW, Windows 7 SVN HEAD (but I don't think anything's changed since the release), trying many combinations of keyboard & menu gestures to cut and restore the cut, I was unable to duplicate this.

What operating system are you using?

I installed 2.0.6 again so I could give you an exact description of the problem as I currently am editing.

The total WAV track time is 11:29:787.

I made a cut from 5:41:583 to 9:24:400. I then went back about five seconds so I could hear if it was to my liking. It was slightly off so I selected "undo". After the undo, the cut section started at 5:40:883, not 5:41:583. In other words, the start point of the cut shifted 1.7 seconds early. This shift did not happen in 2.0.5 or earlier.

My operating system is Windows 7 Pro 64 bit.

I will now restore 2.0.5 and do the exact same thing and report back here in a few minutes.

mdubin

Edit: Restored 2.0.5 and did the same procedure. The undo restored the beginning to 5:41:583 just as I expected. So I hope you can understand the problem now. In 2.0.6, the starting point of cuts are not being "undone" correctly. In both versions, I have "snap to" set to "off".

Have you looked at the snap-to settings?
Do you mark the regions per mouse?
Does zooming in and out before undo change anything?
How does redo work, i.e. is it always the same outcome when you alternate (and change e.g the zoom inbetween)?