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freezing midi soft synths is out of sync


thematix
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Hello friends, I'm experiencing 2 serious issues with Logic Pro since upgrading to Mac Studio. 

My work mode: 

(a) I work in 88.2k often with 1024 buffer size (in mix mode) 

(b) I'm in Rosetta 

(c) I'm running Logic through my UAD Apollo Quad 24 track system integrated with Dangerous analog sum gear of Apollo 12 stereo outputs to UAD Console 2bus. d) my audio tracks are 32bit float  

Issues: 

1) Freezing soft synths, example Dune, Omnisphere, etc.  Logic freezes my midi data totally out of sync with the project.  This often happen especially after many hours of having worked on a track. Freezing audio, is not an issue. This is a very serious problem. When I run the midi track not frozen, it works fine.

2) When selecting a midi soft synth track while in play sometimes causes a synchro horrible gurgle issue. When I deselect the track, for example an audio or fx bus. It stops. 

I have a Logic Log file to attach if necessary - please describe which one from the extracted zip file I should upload.

THANK YOU THANK YOU  xo

 

Edited by thematix
fixed the create track for Apollo bus automation.
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  • thematix changed the title to freezing midi soft synths is out of sync

What's stopping you from using native?
Presumably a particular 3rd party plug-in or a need for ARA?
Have you tried running native with projects that are exhibiting the issues mentioned and is there different behaviour?

I suspect the freezing issue may be related to plug-in delay compensation (PDC) and/or low latency monitoring/mode (LLM).
Theoretically, Logic should automatically handle this, but it may be a bug/oversight.
Try native...and let us know.

WRT the "gurgle"....specific plug/do you "always" use the Apollo DSP as a default on certain channels/busses?
(This may also be related to the freezing prob....just trying to figure out "where" things are coming unstuck).
 

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On 2/20/2024 at 12:18 PM, oscwilde said:

What's stopping you from using native?
Presumably a particular 3rd party plug-in or a need for ARA?
Have you tried running native with projects that are exhibiting the issues mentioned and is there different behaviour?

I suspect the freezing issue may be related to plug-in delay compensation (PDC) and/or low latency monitoring/mode (LLM).
Theoretically, Logic should automatically handle this, but it may be a bug/oversight.
Try native...and let us know.

WRT the "gurgle"....specific plug/do you "always" use the Apollo DSP as a default on certain channels/busses?
(This may also be related to the freezing prob....just trying to figure out "where" things are coming unstuck).
 

Hi thanks for taking time to try to help out.  Appreciated 🙂

I have to use Rosetta for certain soft synths that aren't silicon ready.

I have a number of Apollo Quads linked to my Dangerous analog summing. UAD has never been an issue and yes their DSP is necessary.  I don't use their vst plugs.

The gurgle digital crunch sound jam up thing is comes from a sync issue.  For some reason, when a soft syn track is chosen (even if it's Logic's Drummer) this will happen.  Choose another track that's not a soft syn (bus or audio) it then stops. LOL 

I most often work in 88.2 K (this perhaps may be an issue?

I discovered I can freeze my soft synths and they will be in sync, only when I go to low latency mode. Thus, I then can't freeze any of the plug inserts on the track. As a work around I just started to print my Soft syn source work, then go from there treating it as an audio track.  

have a nice day.

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Word clock or another clock (MTC, MIDI Clock, SMPTE, Black Burst, DIN or Beat clock, etc., etc.) could be the culprit?
Synths, drum machines, sequencers, digital or analogue video or tape transports, modular gear, etc. in your rig?

Out of interest, what synths aren't Silicon-ready?
 

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  • 3 weeks later...
On 2/23/2024 at 3:05 PM, oscwilde said:

Word clock or another clock (MTC, MIDI Clock, SMPTE, Black Burst, DIN or Beat clock, etc., etc.) could be the culprit?
Synths, drum machines, sequencers, digital or analogue video or tape transports, modular gear, etc. in your rig?

Out of interest, what synths aren't Silicon-ready?
 

A bit late on my reply, sorry. 🙂   I still have the issue, though.  My work around is via deselecting the synth, Drummer or etc.... and it stops.  These soft sun tracks also can not be frozen because they freeze always out of sync, which is a BIG drag. Thus, I have to bounce them in real time.  

a) My clocking is internal, not via an outside source. b)There's a number of synths/vst and ARA that are not Silicon ready.

My CPU is fine, and I have 128g of Ram and lots of DSP via UAD.   I work 90% of the time at 88K.  My plugs and soft syn are stored on the main SSD drive.  

So...  There doesn't seem to be an answer to this issue - that I'm aware of.  I've read other's having the same problem. IT's a REAL DRAG... my Mac Pro 2013 Intel, never had this freezing issue or gurgle sync issue when a soft syn is selected in a medium sized project. I don't run a mega number of tracks. My plugs aren't cracks...  So!  LOL... upgrading is not always an upgrade except for the retailer. 

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On 3/12/2024 at 7:12 PM, des99 said:

Have you tried running natively? Your Intel-only plugins will still run in Rosetta.

Hi there!

Yep, native is an issue.  A concurrently, a bug has also been found in Sonoma 14.4. I've recently received a notice from companies, to use Rosetta while an iLok issue is also being resolved with the current OS.   

here's a screenshot I get from running native 🙂 

cheers

Screenshot 2024-03-15 at 11.21.33.png

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  • 3 weeks later...
  • Solution

So... I got all working fine now.  After the new 14.4.1 OS update, and cleared out all plugs that don't work in native mode.  I'm able to work in native mode... and all is running smooth. 

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3 hours ago, thematix said:

So... I got all working fine now.  After the new 14.4.1 OS update, and cleared out all plugs that don't work in native mode.  I'm able to work in native mode... and all is running smooth. 

Great! Good to hear. Thank you for letting us know. 🙂 

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