On 21 November 2012 21:41, Gale Andrews <gale@...> wrote:
> | From Steve the Fiddle <stevethefiddle@...>
> | Wed, 21 Nov 2012 20:09:23 +0000
> | Subject: [Audacity-quality] pasting labels over other labels
>> Currently, pasting labels over selected labels deletes the selected labels.
>> This can produce behaviour that looks very peculiar if "Retain labels
>> if selection snaps to label edge" is enabled in preferences.
>> Do we want pasting labels to delete selected labels?
>> I suspect that it would be better if pasting labels over existing
>> labels "merged" the new labels with the existing labels (as happens
>> when there is no selection).
> What we have to consider is if there are any use cases where
> you do want to replace the labels rather than merge.
That's precisely my question.
I can't think of one, but there may be user cases.
Can anyone else think of a good user case?
> As an "advanced" user I would expect the selection in the label
> track to be overwritten. This is consistent with what happens
> with audio selections.
But the paste behaviour is different from audio tracks - which is why
the current behaviour is weird.
Sync Lock off.
"Retain Labels" enabled in Preferences.
1) Generate 10 second tone
2) Apply a Fade Out (this is just so that you can see which audio is
3) Add region labels (seconds) 2 to 4, 5 to 6 and 8 to 9. Add text to
these - A, B and C respectively.
* 2 to 4 = "A"
* 5 to 6 = "B"
* 8 to 9 = "C"
4) Select from 7 to 10 seconds in both audio and label tracks and copy.
5) Select from 1 to 3 seconds in both audio and label tracks.
If we paste, then we know that the audio from 1 to 3 seconds will be
replaced with out clipboard copy from 7 to 10 seconds and the audio
from 3 to 10 seconds will be pushed to the right by one second
(because the pasted audio is one second longer than the current
This does not happen with the labels.
What we end up with is:
* A point label "A" at 1 second,
* Label "C" from 2 to 3 seconds,
* Label "B" from 3 to 4 seconds
* Label "C" from 6 to 7 seconds.
What has happened in the label track is that:
1 to 3 seconds is deleted, dragging labels "B" and "C" to the left by 2 seconds.
The region "within" label "A" has been deleted, but not the label, so
that collapse to a point label.
The copy of label "C" is then "merged" with the modified label track
(not "inserted" as occurs with audio)
I think the result is surprising even for most "advanced" users.
> By pasting into a different sized label
> region than the one they copied, "advanced" users could adjust
> the position of the other labels when they pasted (as with audio).
> There may be some expectation that pasting selections would
> merge, but I think that arises because there is no easy way to copy
> particular labels without making a selection. You can do it if you
> carefully drag from the start of the first label to the end of the
> last one, but that still doesn't help if you only want to copy one
>> Labels can be deleted with Alt+Ctrl+K without moving other labels in
>> the track. It is a bit odd that this option is found only in the "Edit
>> > Remove Audio >" menu.
> As you have pointed out before, we need better ways to delete
> a label without moving the other labels. I would expect copy, cut
> and delete for labels to be available by right-clicking an individual
> label (with no label text selected) or right-clicking a selection drawn
> over a label (which then does not take into account the selection
> length). If you really want to manipulate the selection, use the Edit
> Menu as now.
The point I'm making here is that the Edit menu option says "Remove AUDIO".
Perhaps we need an Edit menu item for "Remove Labels" or perhaps the
"Remove Audio" could be renamed so as to include "Labels".
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