[Audacity-quality] Bug 1839 - Inconsistent recording into selection

[Steve t. F. <ste...@gm...>]

Re. http://bugzilla.audacityteam.org/show_bug.cgi?id=1839

The behaviour has changed since I last looked.

There appears to be three issues, one of which is definitely a bug,
and the others looks like they probably aren't.

1) The bug is when the recording cursor stops and recording continues.
I think I've found the fix for this.

The other two issues are:

2) When "should" recording stop at the end of the selection?
My take on this is:
Whenever the selection start is at or beyond the end of the track.

3) When "should" padding (silence) be added?
My initial take on this was - "never".
However, I think the intention is that padding is added whenever using
"append record" (default).

3a) I can see a benefit of padding in this case, in that noob users
are likely to be more comfortable with seeing one continuous track
rather than separated clips.

3b) I can also see a downside, in that if you want to adjust the
position of the new clip, you have to remove the padding before the
clip can be shifted to the left.

3c) This is the killer at the moment - We don't export leading
whitespace (a mistake imo), so if we don't pad and a user wants 10
seconds of leading silence to their recording, 10 seconds of white
space won't do it.

Upshot:
My current intention is to fix issues 1 and 2, and leave issue 3 for
now (primarily because of 3c.) Item (3) could be logged as an
enhancement, but I think we would need to "fix" exporting leading
whitespace first.

Steve