Is it possible to change tempo without MIDI moving?
Moderator: James Steele
Forum rules
This forum is for most discussion related to the use and optimization of Digital Performer [MacOS] and plug-ins as well as tips and techniques. It is NOT for troubleshooting technical issues, complaints, feature requests, or "Comparative DAW 101."
This forum is for most discussion related to the use and optimization of Digital Performer [MacOS] and plug-ins as well as tips and techniques. It is NOT for troubleshooting technical issues, complaints, feature requests, or "Comparative DAW 101."
Is it possible to change tempo without MIDI moving?
I've recorded MIDI into DP from an external sequencer application.
However when doing so, the BPM setting in DP didn't quite match the BPM that was set in the external sequencer.
Therefore my recorded MIDI isn't quite lining up with the grid in DP - it drifts more and more out of sync with DP's grid as more time elapses.
Is it possible for me to change the tempo in DP without having the MIDI play faster or slower?
ie. I want the MIDI notes to stay exactly where they are in time, despite changing the tempo in DP to "stretch" the grid.
However when doing so, the BPM setting in DP didn't quite match the BPM that was set in the external sequencer.
Therefore my recorded MIDI isn't quite lining up with the grid in DP - it drifts more and more out of sync with DP's grid as more time elapses.
Is it possible for me to change the tempo in DP without having the MIDI play faster or slower?
ie. I want the MIDI notes to stay exactly where they are in time, despite changing the tempo in DP to "stretch" the grid.
-
- Posts: 3098
- Joined: Fri Oct 15, 2004 10:01 pm
- Primary DAW OS: MacOS
- Location: San Francisco
- Contact:
Re: Change tempo without MIDI moving?
Yes. You can Lock MIDI events in time by selecting 'Lock' in the mini-menu on the SE or in the Track Overview (the little lock icon). However, be WARNED that there is a major bug introduced in DP10 that makes working with MIDI on Locked tracks virtually impossible. You can adjust tempo, as you describe, to align the events to the grid, but many other operations will make MIDI notes disappear permanently. It can't be undone except by reverting to the last Saved version of the Project. Neither Undo or the Undo History can fix it.
If you do Lock the track just don't forget to Unlock it after you've aligned the MIDI.
If you do Lock the track just don't forget to Unlock it after you've aligned the MIDI.
14-inch MBP M1 Max (2021), 13.6.x, 64GB RAM, UAD Quad Tb Satellite, 4 displays ::: 2009 4,1 > 5,1 MacPro 12-core 3.33 ghz , 10.14.x, 96GB RAM, GeForce GTX 770 , NewerTech eSATA/USB3 PCIe Host Adapter, UAD-2 Quad, ::: 15-inch MBP (2015) 10.14.x, 16GB RAM ::: Lynx Aurora (n) USB ::: DP (latest version), Vienna Ensemble Pro danwool.com
- FMiguelez
- Posts: 8266
- Joined: Sun Oct 24, 2004 10:01 pm
- Primary DAW OS: MacOS
- Location: Body: Narco-México Soul/Heart: NYC
Re: Change tempo without MIDI moving?
dix wrote:Yes. You can Lock MIDI events in time by selecting 'Lock' in the mini-menu on the SE or in the Track Overview (the little lock icon). However, be WARNED that there is a major bug introduced in DP10 that makes working with MIDI on Locked tracks virtually impossible. You can adjust tempo, as you describe, to align the events to the grid, but many other operations will make MIDI notes disappear permanently. It can't be undone except by reverting to the last Saved version of the Project. Neither Undo or the Undo History can fix it.
If you do Lock the track just don't forget to Unlock it after you've aligned the MIDI.



Thanks. I'm so staying in 9.52. Frankly, it's hard to believe that hasn't been updated/corrected yet by MOTU after all this time...
Wow!
Mac Mini Server i7 2.66 GHs/16 GB RAM / OSX 10.14 / DP 9.52
Tascam DM-24, MOTU Track 16, all Spectrasonics' stuff,
Vienna Instruments SUPER PACKAGE, Waves Mercury, slaved iMac and Mac Minis running VEP 7, etc.
---------------------------
"In physics the truth is rarely perfectly clear, and that is certainly universally the case in human affairs. Hence, what is not surrounded by uncertainty cannot be the truth." ― Richard Feynman
Tascam DM-24, MOTU Track 16, all Spectrasonics' stuff,
Vienna Instruments SUPER PACKAGE, Waves Mercury, slaved iMac and Mac Minis running VEP 7, etc.
---------------------------
"In physics the truth is rarely perfectly clear, and that is certainly universally the case in human affairs. Hence, what is not surrounded by uncertainty cannot be the truth." ― Richard Feynman
-
- Posts: 3098
- Joined: Fri Oct 15, 2004 10:01 pm
- Primary DAW OS: MacOS
- Location: San Francisco
- Contact:
Re: Is it possible to change tempo without MIDI moving?
Yes, it's crazy they haven't fixed it. It's easy enough to work around, but you do have to remember to Unlock tracks or you can seriously mess things up. It's the really undoable-ness of the issue that raises it to the level of major-bug. ....it only applies to MDI btw. Locked audio tracks are fine.
Further advice would be make sure you unlock all the MIDI tracks when you open projects that were started pre-DP10.
Further advice would be make sure you unlock all the MIDI tracks when you open projects that were started pre-DP10.
14-inch MBP M1 Max (2021), 13.6.x, 64GB RAM, UAD Quad Tb Satellite, 4 displays ::: 2009 4,1 > 5,1 MacPro 12-core 3.33 ghz , 10.14.x, 96GB RAM, GeForce GTX 770 , NewerTech eSATA/USB3 PCIe Host Adapter, UAD-2 Quad, ::: 15-inch MBP (2015) 10.14.x, 16GB RAM ::: Lynx Aurora (n) USB ::: DP (latest version), Vienna Ensemble Pro danwool.com
Re: Is it possible to change tempo without MIDI moving?
Thank you, locking worked as you describe. I'm on DP 7.24 so no bugs with it.
Now I can see that the problem is micro differences between what DP thinks is 136.37 BPM and what the external sequencer thinks is 136.37 BPM..... must be implementation differences in timing between apps.
After 2 minutes of playback the MIDI events have accumulated 5 ticks of difference from DP, ie. they are 5 ticks behind the grid. After 10 minutes they are about 20+ ticks off.
Now I can see that the problem is micro differences between what DP thinks is 136.37 BPM and what the external sequencer thinks is 136.37 BPM..... must be implementation differences in timing between apps.
After 2 minutes of playback the MIDI events have accumulated 5 ticks of difference from DP, ie. they are 5 ticks behind the grid. After 10 minutes they are about 20+ ticks off.
- MIDI Life Crisis
- Posts: 26279
- Joined: Wed May 18, 2005 10:01 pm
- Primary DAW OS: MacOS
- Contact:
Re: Is it possible to change tempo without MIDI moving?
I suggest a different strategy. Let the Wookiee win. Lol
I’d import the MIDI and use the REGION > Scale Time on the MIDI track.
I’d import the MIDI and use the REGION > Scale Time on the MIDI track.
2013 Mac Pro 2TB/32GB RAM
OSX 10.14.6; Track 16; DP 12; Finale 28
LinkTree (events & peformances)
Instagram
Facebook
MIDI LIFE CRISIS
OSX 10.14.6; Track 16; DP 12; Finale 28
LinkTree (events & peformances)
MIDI LIFE CRISIS