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kassra wroteso just wondering, if working on a mac, does the jitter show up when transforming (or freezing) midi tracks/virtual instruments to audio? does it matter what your buffer setting is when you freeze to audio? if i freeze at 2048 (as opposed to 32 or 64), will my resulting audio track suffer from this timing problem?


Nope, only with monitoring.

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by robertgray3 on Fri Jul 17, 2020 10:02 pm
niles wroteIf you are able to make the same movie again I can do the same for Windows and we can clearly show the difference side-by-side. If possible you can show the deviations extremes in the scope by clicking once on the lowest latency and move to the highest (approximately). It may give the developers a better idea of what they are looking at.


Done. The tooltip is small in the video but it shows that at 512 it deviates about 10.53ms total.

Results in the ZIP file to compare audio and midi, video attached to this post.

@roland1 @Rasi @musicchamber since you guys were vocal about having issues with this it might be helpful for you to run niles' test since it's so well packaged and easily quantifiable.



Easy_Buffer_Jitter_Test_5 RG-test.zip
(2.24 MiB) Downloaded 30 times

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Mac Pro (Late 2013)
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32 GB 1066 MHz DDR3
Dual AMD FirePro D500 3072 MB
Quantum 2
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by roland1 on Wed Jul 22, 2020 8:05 am
robertgray3 wrote
@roland1 @Rasi @musicchamber since you guys were vocal about having issues with this it might be helpful for you to run niles' test since it's so well packaged and easily quantifiable.


I did a MIDI loopback test earlier on and found that the accuracy of recording MIDI notes played back from an internal track deviates (don't have the notes) either from 1-3ms or 1-3 "ticks" at a 64 buffer setting on my PC (i7 7700).

I also read that this kind of random hit and miss behavior is not a rare occurrence in DAWs.

But I will try Niles test though. Right now I'm a little sidetracked.

I use: Studio One Pro v5 on i7 7700 win10 PC w16GB RAM and 4.61 on a Mac Pro Tower (Sierra) w/RME & Focusrite interfaces.

Author: Reality Checks for Everyday Life — Keeping it real in a world of illusions. I can also be found loitering at: http://RolandK.ca

Attention all shoppers: The people in commercials are paid actors.
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by kisnou on Sun Nov 08, 2020 8:13 am
Hello, any updates on this?

I have recently watched the video by Admiral Bumblebee about midi jitter, and it seems to be a serious problem. This is the article:
https://admiralbumblebee.com/music/2020 ... -fail.html

I have the same issues with the loopback test, when it comes to midi. I have run several tests for many, many days, without a solution. Can anybody help? It seems like presonus has not fixed this yet.

Italy
Studio One Pro 5.1 64 bit
Win10 - AMD Ryzen 7 2700 Eight-Core - 32gb ram
Nvidia GTX 1060 6gb
Interface: Focusrite 18i20 3rd gen
Prophet XL + Minilogue XD
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by PreAl on Sun Nov 08, 2020 8:19 am
kisnou wroteHello, any updates on this?

I have recently watched the video by Admiral Bumblebee about midi jitter, and it seems to be a serious problem. This is the article:
https://admiralbumblebee.com/music/2020 ... -fail.html

I have the same issues with the loopback test, when it comes to midi. I have run several tests for many, many days, without a solution. Can anybody help? It seems like presonus has not fixed this yet.


Have you read the full thread?
Create a ticket with support if it does not help.

Studio One Pro 5, Faderport Classic (1.45), Atom Pad, Atom SQ, Presonus Studio 26c, Focusrite Saffire Pro 40, Maschine Studio, Octapad SPD-30, Roland A300, Windows 10 Pro 64 bit, also running it on Mac OS Catalina via dual boot (experimental).

Intel i9 9900K, 32GB RAM,
EVGA Geforce 1070 (Nvidia drivers).
Dell Inspiron 7591 (2 in 1) 16Gb.
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by Baphometrix on Sun Nov 08, 2020 10:18 am
For everyone thinking the "MIDI jitter" is a big deal....

May I suggest reading this specific post?
viewtopic.php?p=249109#p249109

Studio One 5.1 Pro (Sphere) | Bitwig 3.2.x | Ableton 10.x
Faderport 8 | ATOM SQ | MOTU M4 | Push 2 (Shove)
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by robertgray3 on Sun Nov 08, 2020 10:45 am
Baphometrix wroteFor everyone thinking the "MIDI jitter" is a big deal....

May I suggest reading this specific post?
viewtopic.php?p=249109#p249109


Exactly.

It’s pretty clear that at present the only time S1 behaves any worse than other DAWs in this department (and only slightly worse at that) is with buffers over 256 and only on macOS. In the posts above Niles and I helped everyone do their due diligence and that was all that could be empirically shown.

For anyone landing here from the AB article and getting all worried, Baph’s post above is a good read. If one follows those recommendations then one can avoid ever dealing with this.

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Mac Pro (Late 2013)
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32 GB 1066 MHz DDR3
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by kisnou on Sun Nov 08, 2020 11:15 am
Yes I have created a ticket, after pages of conversations, I have heard th problem will be fixed in the next patch release.

I am pretty sure the problem is more serious for some pc configurations and less (or even non existent) for others. Weird, but that's what I have seen after days of testing. However, thank you all for the replies and for the help.
I will now read the reply by Baphometrix! Thanks!

Italy
Studio One Pro 5.1 64 bit
Win10 - AMD Ryzen 7 2700 Eight-Core - 32gb ram
Nvidia GTX 1060 6gb
Interface: Focusrite 18i20 3rd gen
Prophet XL + Minilogue XD
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by admiralbumblebee on Sun Nov 15, 2020 2:49 pm
Mild Necro:

Update here: https://admiralbumblebee.com/music/2020 ... sions.html

LOTS of tests including all other major DAWs.

tldr so you don't have to click the link; S1 5.1 works without jitter now, and the dropout protection is more consistent in behaviour.

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by admiralbumblebee on Sun Nov 15, 2020 2:55 pm
Baphometrix wroteFor everyone thinking the "MIDI jitter" is a big deal....

May I suggest reading this specific post?
viewtopic.php?p=249109#p249109


"ZL" mode removes any benefit you get form extra buffering in the DP modes. If you have a project where you can only play back at a given buffer/DP, then enabling LL will likely cause dropouts during recording/live playback.

As I demonstrated though, pre-5.1, the low-latency mode did not work properly on macOS (compared to 5.1).

So this is/was only a potential solution in certain cases: Windows machine, low/medium load project.

So for many people this was a big deal, but luckily they adjusted how it works. DP and "ZL" are consistent, and all settings have no MIDI input jitter.

This still leaves the issue with Windows having minor consistent MIDI jitter with all settings...

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by robertgray3 on Sun Nov 15, 2020 3:01 pm
admiralbumblebee wrote"ZL" mode removes any benefit you get form extra buffering in the DP modes. If you have a project where you can only play back at a given buffer/DP, then enabling LL will likely cause dropouts during recording/live playback.


You're talking about the general topic of CPU usage with Dropout Protection, right?

1- This just isn't correct, it depends on the person's computer and their situation. I use DP Max to great effect in lots of sessions that require a buffer of 1024 and above for playback and can record new tracks in those sessions at 64 by using it.

2- Isn't this an issue for a completely different thread?

Mac OS X Mojave 10.14.6
Mac Pro (Late 2013)
3 GHz 8-Core Intel Xeon E5
32 GB 1066 MHz DDR3
Dual AMD FirePro D500 3072 MB
Quantum 2
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by roland1 on Sun Nov 15, 2020 9:04 pm
Thanks for the update, Admiral. :) This is good news indeed.

I use: Studio One Pro v5 on i7 7700 win10 PC w16GB RAM and 4.61 on a Mac Pro Tower (Sierra) w/RME & Focusrite interfaces.

Author: Reality Checks for Everyday Life — Keeping it real in a world of illusions. I can also be found loitering at: http://RolandK.ca

Attention all shoppers: The people in commercials are paid actors.

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