Take short audio samples and loop them to a desired length in just seconds!
In today’s post we walk our readers through the process of using our favorite free, open source audio editing software for Mac OS X, aka Audacity to transform those short clips into a seamless loop of any desired length.
Looking for Setup instructions? Our recent Audacity 2.0.0 for Mac OS X Installation Tutorial should do the trick!
For today’s walk-through, we’ll be applying the Repeat effect using Audacity 2.0.0 for Mac OS X.
Step 1: MP3 Download
Already have the file ready to go on your desktop? Skip to Step 2!
Before one can edit their AudioAcrobat recording in Audacity, the first step is to make sure that the file resides on the hard drive of the computer on which editing will be performed.
1. Login to your AudioAcrobat account
2. Click Audio (L)
3. Click the Title of the Audio you wish to Download
4. Click Download Audio
Looking for Expanded Steps? Try HERE.
Step 2: Open in Audacity
Now that the file our readers wish to edit is on their computer’s hard drive, they will want to open the file with Audacity. Right-click the file and choose Open With and select Audacity from the list. Don’t see it listed? Open Audacity from Applications folder in the Dock. Open the software and choose File >> Open, selecting the audio to be edited.
Once the file opens in Audacity, our readers will see something like this:
Aside: Notice how our clip starts with a brief peak, continues with (6) wider peaks and trails out to near silence. This gives the loop we’re about to create a clean start and a smooth finish, not to mention a nice falling + rising feeling as the clip repeats.
Step 3: Highlight, Repeat + Export
It really is that simple. Click and drag with the mouse cursor or for those keyboard enthusiasts out there use Shift + Left / Right arrow keys to make a selection.
For the Repeat effect, our readers will want to make sure to select the area which encompasses the intended duration for which the effect is to be applied.
Here our readers will want to select Effect >> Repeat as seen below:
Immediately after selecting Repeat, the following pop-up should appear:
Here is where a bit of simple math, or trial and error, will come into effect.
If you know the desired length of the intended loop, we’ll just say (x) seconds in length, you will want to divide it into the length of the original clip, which we’ll call (y) seconds in length to determine the number of times to repeat (we’ll call this (z)), resulting in the following equation:
x/y = (z+1)
Using the image above, if we added (10) repetitions (z) to our (1) clip we’d have a total of (11) occurrences (10+1). Total loop length (x) is (41) seconds and we can solve for (y) with:
41/y = 11
…or 41/11 = y
y = 3.72727272727273
Not that this math is really necessary, but the above equations are extremely valuable to those who know their clip length (y) and the desired loop length (x), but need to determine how many repetitions (z) are required to make the magic happen.
We went with (10) repetitions and are happy to show off our brand-new loop right here:
You should now have created a loop from a single audio clip, custom-tailored to the exact length you require!
When satisfied, select File >> Export to save the newly edited version and head over to AudioAcrobat in an internet browser to begin the upload process.
Well that was quick … we’ve already walked through the process of downloading/opening our file, applying the Repeat effect using Audacity 2.0.0 for Mac OS X and exporting the file for upload to the Web … and yet it seems as though we had just begun. If you agree, go ahead and click the ‘Previous Post’ link beneath this article to continue the joyride!
Did you get stopped somewhere in the process? Make sure you have LAME correctly setup then shampoo, rinse and repeat the steps listed above. Success will be yours!
Did you find the above process helpful? Were you able to follow-along? Please let us know by leaving a comment below!
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Coming up next … #FolowFriday!