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davsong

macrumors newbie
Original poster
Jul 5, 2020
3
0
I have been creating mixes for my group. There are often 6 of us involved in this, creating vocal and instrumental tracks. Our general process is that one person makes a scratch video, singing and playing. The others then listen on headphones as we watch that video (we find a video makes it easier to try to match phrasing than just and audio file) and record our parts, usually on our iPhones. These files are then sent to me, and I create a mix.
The first two songs I did worked perfectly. But lately I have encountered a big problem. In one case, the person who made the original video - on his iPad - also recorded his instrument (cuatro) separately on his phone. But when I try to put the two together, the separate cuatro track runs slower than the video, so they don't synch. On the other hand, I was able to record my banjo part on my iPhone and it synchs perfectly.
On another song, I recorded the scratch video, and in this case the cuatro part that was sent me ran faster, as did another vocal harmony part.
Any ideas?
 
Sounds like it could possibly be a sample rate issue, or an embedded tempo issue. What app are you using to do the mixes? Is everyone recording using voice memos on iPhones or are they recording to GarageBand or other apps?
 
The mixing is in GarageBand. The other recordings are mostly iPhone voice memos, one on an iPad and one using Garageband. Different combinations seem to have created different problems. When I have looked at the files using info on my computer through finder, all the files have reported a 44.1 KHz sample rate. And like I said, with these same people, presumable meaning the same tech, I had no problem with the first song we worked on. And on that one, the original video was created using a vdeo camera - don't know the brand.
Not sure what an embedded tempo issue would mean.

Sounds like it could possibly be a sample rate issue, or an embedded tempo issue. What app are you using to do the mixes? Is everyone recording using voice memos on iPhones or are they recording to GarageBand or other apps?
 
Just to be clear, are you dropping the video into GarageBand and syncing all files to that, or are you syncing audio only?

If you open the editor for your tracks to you have the "Follow Tempo and Pitch" box checked or unchecked for any of them?
 
Dropping the audio only from the video into GarageBand. I have tried a bit using follow tempo and pitch but it didn't sound good or natural to me.
Is that different from flex time where you set a lead track?
 
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