[audacity4blind] Re: WHAT DOES THE TERM CONTRACTING A SELECTION MEAN?

  • From: Andrew Downie <access_tech@xxxxxxxxxxxxxx>
  • To: audacity4blind@xxxxxxxxxxxxx
  • Date: Tue, 8 Nov 2016 17:42:31 +1100

At the risk of adding to your confusion Sameer, I am going to suggest an alternative to using the arrow keys for extending and contracting a selection. There are times where the approach is useful, but sometimes it may not be sufficiently exact. Note that the degree to which the selection contracts or expands depends on the zoom level.


I more often use the left and right brackets. That is, the two keys to the right of the p. Pressing the left bracket when stopped allows you to change the position of the left edge of the selection. Pressing the right bracket allows adjustment of the right edge. Pressing those keys when playing will set the left and right edges of the selection. Depending on your reflexes and the material, you may then need to make fine adjustments when stopped. Play with arrow keys and brackets to get a feel for when to use either approach. Also check out the Selecting audio and Spectral Selection section of the Audacity manual. There is specific information about using the keyboard. Understanding the concepts in that section of the manual is vital to using Audacity effectively.



Andrew



On 8/11/2016 2:11 PM, Sameer Vasta wrote:

Hi Steve

Absolutely, I do now.

But, I took some time to sink in lol.

Thanks plenty.

sameer



On 11/8/16, Steve the Fiddle <stevethefiddle@xxxxxxxxx> wrote:
Reply to Sameer:

If you have a 30 second recording with a selection area between 10 and
20 seconds:
"Ctrl + Shift + Left" will move the right edge of the selection to the
left. As you continue to hold the keys down, the right hand edge of
the selection will continue to move to the left, reducing the length
of the selection. If you hold down the keys long enough, the selection
will eventually  collapse to a single cursor position at the 10 second
mark.
Similarly, "Ctrl + Shift + Right" moves the left edge of the selection
to the right.

Does that help?

Reply to Jacob:

The "selection" is the portion of the track that effects and edits
will act on. For example, if you want to fade out the last 5 seconds
of a track, you must first "select" the final 5 seconds of the track,
and then apply the Fade Out effect. The Fade Out effect will act on
the selected audio, which in this example is the final 5 seconds of
the track, and produce the desired result.

By default, if you try to apply an edit or an effect without first
making a selection, then Audacity will automatically select the entire
project and apply the edit/effect to the entire project.

Steve

On 7 November 2016 at 19:00, Jacob Kruger <jacob@xxxxxxxxxxxxx> wrote:
AFAIK, it has more to do with what's displaying on the screen - as in to
sort of hide a portion of a long track from view, but, not 100% sure
about
this.


Look for the term contract on David's guide:

http://vip.chowo.co.uk/wp-content/uploads/jaws/Audacity-2.1.2-Guide.html


HTH


Jacob Kruger
Blind Biker
Skype: BlindZA
"Resistance is futile, but, acceptance is versatile..."


On 2016-11-07 4:06 PM, Sameer Vasta wrote:
Hello All

Is there anyone able to help me with an anser to the above?

Regards

Sameer

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