Can I change the tempo of the project and not have the pre-recorded audio tracked messed with?
This seems like such a simple thing. I've been messing with this for hours now. Other threads mention selecting the audio I don't want Logic to eff with, and applying 'smpte lock' to them, but it doesn't work (for me).
Any help, very much appreciated.
Make sure you do not have flex or follow tempo enabled on your audio. Also, join up the regions before altering the tempo.
Make sure you do not have flex or follow tempo enabled on your audio. Also, join up the regions before altering the tempo.
Select all audio regions that have to stay put and choose "Lock SMPTE position"
Don't think the audio changes when you change the tempo, because you will SEE the audio shrink or expand when you change the tempo, but that is only visual: the audio does stay at the same position IN TIME.
I told you about this in my reply. Enable the secondary ruler and you'll see that on the TIMEline everything you locked stays exactly put.
Also, your low-res video means I cannot be more precise. I don't like that. Also, the calculus and measuring and explanation would be so much easier had you chosen 120 and 60. But OK. You didn't know, and you thought you had a point.
O, and just to be clear: I am a user, not "Apple". I don't work for them in any way.
OK, you appear to be not getting what happens. The audio files stay put in time, but they change in bar position, because a bar is NOT a unit of time.
A 120 BPM 4/4 bar lasts 2 seconds, a 50 BPM 4/4 bar lasts 3.3333 seconds. ( 60 BPM 4/4 bar lasts 4 seconds - see how much easier that is to calculate with?)
Look: the total length of you audio regions collection at 120 BPM is about 32,5 bars.
At 50 BPM the audio files span about 13.5 bars.
50 divided by 13.5 = 120 divided by 32.5., therefore they still span the same TIME.
The distance in time between the audio files has also stayed exactly the same.
Another way to check:
At 120 BPM the audio starts at bar 25 -ish
At 50 BPM the audio starts at bar 11- ish
25-ish bars at 120 BPM is 50-ish seconds
11-ish bars at 50 BPM is 50-ish seconds
Again, the same point in TIME.
Have you noticed the MIDI doesn't move? Oddly (but correctly) that means that is HAS changed in time.
Here is a clear example: I halved the tempo (94 to 47), and the audio files start at 22,979 seconds exactly, before AND after.
To make everything stay put, you also need to SMPTE lock the MIDI regions. Otherwise they stick to their BAR position:
Oh christ. Why can't I embed a YouTube video to this thread and why the **** isn't there a 'preview post' button? What the **** Apple?!
Here's the youtube video:
Hi, thanks for your reply. I may not have been clear in my question. I can 'Lock SMPTE position' the regions I don't want to Logic to touch, but it ignores me. Have a look at this video to see what I'm talking about:
(to summarize: I want to change the tempo but I don't want Logic to touch any of the audio files)
Okay, I think we are at cross purposes here. I appreciate you taking the time to write such a long response. You sound frustrated with me, and I'll admit, I'm relatively new to Logic Pro X. Also, I don't know how to upload a video in such high quality as you have done. I'm finding this forum software not all that intuitive.
All I want to know is:
Can I adjust the tempo of a project without pre-recorded audio being permanently altered?
It doesn't matter if things move, I can move them back.
If you listen to this YouTube video:
You can hear that the audio is different once I adjusted the tempo (I reduced the tempo by a lot, purely so you could hear the pronounced difference in the audio track, I don't really want to reduce it to 50bpm, but 104bpm)
What I am asking seems so simple. There must be a check box or something somewhere that deals with this.
Thanks for your reply. I know you are not 'Apple'. I was complaining (to Apple, as if they're listening), that this forum doesn't have a 'preview post' button, that's all. It was just meant as a bit of mirth. Okay, I'm going to read your response and see if it helps me.
I want to change the tempo but I don't want the tracks with pre-recorded audio to be touched
