How to punch-in

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How to punch-in

Permanent link to this post Posted by RO1993 » Wed Jan 18, 2012 5:04 pm

Can someone please tell me how to punch in on Audicity?
Because I am recording with Audicity and when I made a mistake I only want to do that little part again and not the whole song.
Would be great if someone can tell me how to do this!
Thanks.
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Re: How to punch-in

Permanent link to this post Posted by steve » Wed Jan 18, 2012 7:11 pm

The "punch in. punch out" concept goes back to the days of tape based recorders - if you have only 4, 8 or 16 tracks available then "punching in" and overwriting a previously recorded track is often the only practical option. However with Audacity and modern computer hardware, the number of available tracks is enormous, so there is no longer the need to be frugal with track (or tape) usage.

This is copied and pasted from a previous post so the shortcuts will not be quite right for a Mac.
When it says to press the "Ctr" key, it is usually the Command key on a Mac.

---------------------------


Doing a simple "punch in / punch out" with Audacity 1.3 (note that if you are not familiar with the shortcuts (hot keys) all the commands are also available from the menus):

  • Record track 1
  • Let's say we've messed up a section approximately 1 minute into the track.
  • We find a sweet point just before the mess to "punch in" and a sweet point just after to do the "punch out".
  • Click on the track info box to select the track.
  • Click & drag from the punch in point to the punch out point
  • "Ctrl B" to label the region - type "bad bit" as a name for the label, then "ENTER" to close the label and "ENTER" again to deselect the label track.
  • "Ctrl Alt K" to "split delete" the offending bit
  • Click a few seconds before the punch in point
  • "R" to record - play and re-record the new bit on audio track 2 - press "stop" at the end.
  • If you mess up again, "Ctrl Z" to undo and try again.
  • When you have got it right, click on audio track 2 to select it,
  • Click on the name of the label ("bad bit") to select the labelled region of the new recording.
  • "Shift Click" on the track info for the label track to deselect it
  • Go up to the right hand edge of the selected region of audio track 2 and drag the selected region to the left so as to include all of the recorded section prior to our "punch in" region and "Ctrl Alt K" to "split delete" it.
  • Repeat this method to delete the trailing region of the new track after out "punch out" point.
You now have a perfect "punch in / punch out".

This may seem like a lot of steps, but I've put in all the details - once you are familiar with the short cuts it's as simple as
1) mark it
2) delete it
3) re-record it
4) trim it.

When using labels to mark the positions, you can also use cross fades between the old and new recordings - brilliant if there are no good punch in / out points (and something that is just not possible with traditional punch in punch out),.
Last edited by steve on Fri Apr 24, 2015 3:53 pm, edited 3 times in total.
Reason: Added "ENTER" to step 6
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Re: How to punch-in

Permanent link to this post Posted by Gale Andrews » Sun Jan 22, 2012 4:15 am

I think you may need ENTER, ENTER after
[*]"Ctrl B" to label the region - type "bad bit" as a name for the label.

or you will split delete the label too.

A quick and dirty method I sometimes use if there are good silences either side of the mistake and there are not multiple tracks to synchronise with is to select what I want to replace including a bit of silence either side, record, then CTRL + L to silence the selected glitch.



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Re: How to punch-in

Permanent link to this post Posted by steve » Sun Jan 22, 2012 2:15 pm

Gale Andrews wrote:I think you may need ENTER

Yes that's right. I've amended my previous post.
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Re: How to punch-in

Permanent link to this post Posted by Gale Andrews » Sun Jan 22, 2012 5:29 pm

steve wrote:
Gale Andrews wrote:I think you may need ENTER

Yes that's right. I've amended my previous post.

If I am not mistaken, I think you need two ENTER's.

The first ENTER closes the label.

The second ENTER deselects the label track.


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Re: How to punch-in

Permanent link to this post Posted by steve » Sun Jan 22, 2012 5:44 pm

Doh. Let's see if I can get it right this time.
I don't normally bother creating the label at all when I do this, but I included that step as it makes it a bit clearer what is happening (when the instructions are actually correct).
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Re: How to punch-in

Permanent link to this post Posted by Gale Andrews » Thu Jun 20, 2013 7:21 am

steve wrote:
  • Click on the track info box to select the track.
  • Click & drag from the punch in point to the punch out point

It just struck me you don't need the first of those bullets.

steve wrote:
  • When you have got it right, click on audio track 2 to select it,
  • Click on the name of the label ("bad bit") to select the labelled region of the new recording.
  • "Shift Click" on the track info for the label track to deselect it
  • Go up to the right hand edge of the selected region of audio track 2 and drag the selected region to the left so as to include all of the recorded section prior to our "punch in" region and "Ctrl Alt K" to "split delete" it.
  • Repeat this method to delete the trailing region of the new track after out "punch out" point.


I could suggest an easier (?) two bullets to replace the last four:

  • Click on the left edge of the newly recorded clip. When you see the blue vertical line with the yellow vertical line in the other tracks, drag rightwards as far as the left edge of the label above. When you see the yellow line indicating the right edge of your selection is snapping to the left edge of the label, release the mouse then CTRL + ALT + K to "Split Delete" the selection.
  • Repeat this method to drag from the right edge of the newly recorded clip leftwards to the right edge of the label (look for the yellow lines) then CTRL + ALT + K again.
It may perhaps require more dexterity but it is arguably more intuitive?


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