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Quick Tip: audio quantize loops from Loopy Pro with Auria
If you happen to own a copy of Auria Pro you can use it to quickly audio quantize any slightly out-of-time loops recorded in Loopy Pro.
The whole process is really quick using Audiocopy, this very short video shows it in action:
The process is as follows:
swipe up on a loop in Loopy Pro to bring up the import/export options, then tap the export icon, and use AudioCopy
Switch to Auria, with a project set to the same BPM and sample rate as your Loopy Pro project.
Audiopaste into an empty track
Select the track and go to Edit --> Loop To Selection
Select the audio in the timeline, and on the track header set the Transient button to "Tran"
Make sure there is no snapping set, trim the start of the audio if necessary, then move the playhead over each transient and add a transient marker using the Edit menu
Once you have added the markers, set the Transient button in the track header to "Warp"
Move the markers to line up with the grid
When you're done, select the track itself, and got to Process --> Bounce Track In Place
Set the snapping to "Bars" and trim the audio
Select the quantized audio and Audiocopy to the clipboard
Back in Loopy swipe up on the doughnut you want to paste the audio into, and paste it.
I believe you can also audio quantize with Auditor, but Auditor doesn't support Audiocopy as far as I can see, so the process will be a bit more finicky since you will need to actually save files onto the iPad. Using Audiocopy into Auria should be quite a bit quicker.
Comments
@richardyot : Auditor supports copy/paste audio from the system clipboard, btw -- though it was to be turned on in its preferences. Now, if only Auria would support the system clipboard
Ok that’s interesting, so in theory you could do something similar with Auditor, without having to go via the file system. I’ll see if I can get it to work.
Did a quick play and it seems to work quite well.
Some apps allow you to "warp" the audio, which means you can stretch sections between individual markers, without actually cutting/slicing. This means there are no silences, clicks, etc... the audio is as smooth as the original.
With drums and staccato audio you can get away with just slicing in some cases, but with melodic content, especially if it's legato, warping is a much better option.
Just did my own test, copy and paste does indeed work once you enable that option in Auditor's global preferences (thanks for that tip).
However the warping in Auditor is nowhere near as good as Auria Pro. Auria Pro is using the Elastique Pro algorithm, not sure what Auditor uses but it doesn't do as good a job, and there are audible glitches where the warp points have been moved.
Won’t mind an IAP for Audio Quantize in LoopyPro..
Yes, but I don't think it matters much here.
Sure it does. You can warp slices just like you can in Auria Pro and Auditor. Slice by transients, then tap the Manual button, then the Stretch button.
Neon is very convenient for this. Just a quick copy and paste from Loopy to Neon, then copy / paste back to Loopy. You can even load it right in the host if you want.
Thanks - I didn't know that (I don't own Neon). How is the quality? Is it on par with Auria/Elastique Pro?
Probably not. Auria is excellent. But I can't say I've done any comparisons. I've only ever used it to slightly fix timing on one or two notes in loops.
Also, I've sometimes used simple editing with Cut / Paste to fix the timing of just the first note of a loop. In cases like that, if the material is suitable, you can get away with no warping at all.
I'm interested to try the new loop smoothing stuff in Neon - I just haven't gotten there yet as Loopy's tail options cover most of that kind of thing.
@wim ok thanks. At £5.99 I might take a punt on it to test over the holidays.
You want to use warp markers to line up the transients, like I do in the video above 👆