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Question about drum loop file formats
Just took advantage of a great Cinco de Mayo sale at esounds and got a boatload of drum loops. They come in WAV, Apple Loops, and rex2 file formats. The caveat here is that I've never plugged my iPad Pro into my PC, and between iCloud and Dropbox I'm really hoping never to have to. I'd like to be able to change the tempo of these loops, and the DAWs I have at my disposal are Auria Pro, Cubasis, and Garageband. I know I could just import the WAVs from Dropbox into AP, but then I don't think I could easily change the tempo. The Rex2 format seems designed for this, but I'm not finding any iOS app that reads that format. I could use the Apple Loops in Garageband, but everything I read says I have to put the loops into iTunes and then sync the iPad to the computer, which I'm reluctant to do. If Auria Pro reads Apple Loops and would automatically adjust the tempo maybe I could import the Apple Loops from Dropbox into AP. Anyone have any thoughts on the matter?
Comments
When it comes to time stretching/warping, REX is better for percussive sounds, and acidized WAV is better for melodic sounds. If your WAV files are acidized, then that's your best bet for broadest compatibility. There aren't enough iOS apps that support REX files that it's worth bothering with IMO.
You could import the Apple Loops into Auria Pro. Or you could purchase some apple loops in the Auria Store. If you just want to try, you could dowload free contant into Auria and find there free loops.
http://auriaapp.com/forum/viewtopic.php?f=19&t=11174
blocs wave ... if you've got the time or inclination to enter the key and either tempo/number of beats for each loop
Just import the wav's from Dropbox...you will need the free base app, and the import audio IAP....if you don't already own them.
@Kranick, looks like those free loops require a connection to iTunes, which I'm hoping to avoid. I forgot that there's Apple Loops for sale in their store, so I'll have a look at what's available. And if I'm lucky, Apple Loops that I put into Dropbox will be available for import in the AP import list. That would totally be what I need. @AndyPlankton, these are un-acidized WAVs. Unpitched drum loops, so no key. You're saying Blocs Wave could alter the tempo if I simply enter the tempo or number of beats per loop?
When you import the loop into blocs, you tell blocs how many beats there are or the tempo if you know it of the source loop......Then you can change the tempo to whatever you want within blocs at any time and in realtime......either play the loops in blocs using Link to sync with other apps, or you can export in the new tempo from blocs into whatever you want.
If you do have pitched loops, blocs will also transpose or timestretch to whatever key/tempo you want....a very useful tool for working with loops like this.
Very cool. I always thought loops had to be acidized or embedded with some sort of tempo information in order for the tempo to be altered. Didn't know it was possible with plain WAV files.
Saving the key information and tempo with the file is essentially what acidizing a file is....I think
Just thought, not sure, and don't have one to test with, but it is possible that if you try an acidized loop in blocs that it will may automatically pick up the key/tempo from the ACID info...
Has anyone else tried acidized loops in blocs ?
Ugh. So I threw a few 115 bpm loops into Dropbox, both the Apple Loops AIFF format as well as the same loops in WAV format. (Turns out they are acidiized WAV files after all). I then created an Auria Pro project at 115 bpm and imported the Apple Loops from Dropbox. Obviously they line up perfectly with the AP tempo. But when I change the AP tempo to 123 the loops still play at 115.
Every time you change the tempo of your project within Auria, you should delete all your drum tracks and import AIFF again.
Or, you can stretch them in-place. Auria doesn't do this automatically like you might expect, so you need to adjust them to the right length. This is done by two-finger tap and drag of the arrow at the bottom-left of the clip. Set snap to bar first to make it easier.
No guarantees this will work, but you could try starting with your tempo set to 123, then import your 115 loop(s) with Auto Time Stretch enabled.
https://forum.audiob.us/discussion/comment/160753/#Comment_160753
I have all multitrack loops in Auria. All of these are the AIFF files. And there are no problems to use it in Auria. You could read the step by step instructions on Auria forum:
http://www.wavemachinelabs.com/forum/viewtopic.php?f=19&t=12061
I didn't have auto-timestretch enabled. Oops. I'm a little bummed that I can't change the tempo and have the loop automatically adjust like in GarageBand. I understand the 2 finger drag to timestretch/compress, but I've actually only gotten it to work once when I tap 2 fingers on the bottom right handle (that's what the users guide says to do). Every other time I've tried that it just tries to enlarge or shrink the view, like one normally tries to do when using 2 fingers. I'll keep experimenting. And I could always just reimport the loops if I decide later on that I want a different tempo. But it's not ideal. Thanks everyone for the help!
The trick is to first touch the icon with one finger until you see an arrow pointing to the left appear at the center of the track. Then place the second finger vertically above the first until the stretchy icon shows up above it. Now you can drag to stretch. Sometimes you have to pull it past the point you want it to go to and then back to it or it snaps back to the original position when you let go. It's difficult to get at first, but works consistently if you keep the above in mind.
Here's a good example:
And... works like a charm. Thanks a lot, @wim and @Kranick!
I'm curious, do acidized wave files time stretch more quickly than non-acidized waves in Auria?
Not on my iPad now, so I'll have to check tomorrow. The WAV files I timestretched were acidized, so I'll have to find (or make) an un-acidized loop and test it out. Interesting question, since a couple of the videos I watched on timestretching were NOT using acidized files.