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Latency, Stuttering, etc -- Windows
#3028042 09/22/20 09:41 PM
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I stumbled on a list of things to check on Windows computers, here:

http://www.codecguide.com/configuration_tips.htm?version=1575

Quote
Solutions for stuttering, crackling, drop outs, and lip sync issues:

First check CPU usage during playback. Press Ctrl+Shift+Esc to open Windows Task Manager. If CPU usage is close to 100% then your computer might not be powerful enough to play high resolution videos. Visit our forum for advice.

Disable fast startup in Windows 10: Windows Control Panel > Power Options > "Choose what the power buttons do" > uncheck "Turn on fast startup"

Windows Control Panel > Sound > Speakers > Properties > Advanced > disable the two "Exclusive mode" options

Windows Control Panel > Sound > Speakers > Properties > Enhancements > Disable all sound
effects

On laptops: Windows Control Panel > Power Options > select "High performance" power plan. If this works, then increasing the value of "Minimum processor state" in the other power plans may also solve it.

Update your sound driver. Many computers have Realtek audio chip: latest Realtek driver (use generic one). You can also use the generic "High Definition Audio Driver" from Microsoft.

Use Latency Monitor to check if you have any driver installed that cause high DPC latency. Such drivers should be replaced with a newer (or older) version.

If you have overclocked your CPU, then reset to stock speed and voltage settings, and test if that makes any difference.

If you have an Intel CPU, the use InSpectre tool to disable the Meltdown/Spectre protections. These have a negative impact on performance and increase latency. It does not matter much for
security since most modern web browsers already provide protection against these processor flaws.

If you are running virtual machines using Hyper-V, then closing the VMs might solve audio stuttering.

Antivirus software can sometimes also cause DPC latency, for example when they monitor network activity. Try removing it and just use the built-in scanner from Windows 10.

Check if a BIOS update is available for your motherboard.


. Charles
---------------------------
PX-350 / microKorg XL+ / Pianoteq / Lounge Lizard / EV ZXA1 speaker
Re: Latency, Stuttering, etc -- Windows
Charles Cohen #3028046 09/22/20 10:01 PM
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I wish that there was a program (maybe call it an app,) that puts to sleep all unnecessary functions to make PC a VST monster. I used to play out with my computer to use Vintage D and NeoSoul EPs. I gave it up after a while since it was more fun just to turn on piano and play.

I would like to start using Vintage D and have been researching this subject.


AG N2 | ES 110 | REFACE CP | GK MK & MP amps
Re: Latency, Stuttering, etc -- Windows
36251 #3028086 09/23/20 03:27 AM
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Originally Posted by 36251
I wish that there was a program (maybe call it an app,) that puts to sleep all unnecessary functions to make PC a VST monster. I used to play out with my computer to use Vintage D and NeoSoul EPs. I gave it up after a while since it was more fun just to turn on piano and play.

I would like to start using Vintage D and have been researching this subject.
A starting point is something like this script but it's not aimed at real time audio or VSTs. So it might be out there!?

Re: Latency, Stuttering, etc -- Windows
Charles Cohen #3028096 09/23/20 04:33 AM
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That script has a very heavy hand. If you read the scripts you see that it disables many things. Perhaps too many.

Anyway ... it only supports recent Windows 10 releases. Aren't people who have latency problems using older, slower computers that run older Windows 10 versions (or even Win 8 or 7)?

IMO, if you spend large on a piano, just spend a bit more for a newer computer for the VSTs. Even without tweaks these are likely to run VSTs well.

I'd usually recommend ASIO ... or ASIO with an external audio interface.
But I recently discovered that even WASAPI works well.
As in ... just plug in the PC and it runs VST software with no tweaks.

Re: Latency, Stuttering, etc -- Windows
36251 #3028111 09/23/20 06:16 AM
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Originally Posted by 36251
I wish that there was a program (maybe call it an app,) that puts to sleep all unnecessary functions to make PC a VST monster.
You could use a lightweight Linux distro like Arch and then load it with a Linux based DAW.

Re: Latency, Stuttering, etc -- Windows
MacMacMac #3030780 10/01/20 02:09 AM
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This surprised me too. The ASIO drivers were worse than the native Windows 10 drivers.
I still ended up with a cheapish Focusrite audio interface... No more latency issues, using a cheap but modern (ssd) laptop with 4 gig Ram.

Re: Latency, Stuttering, etc -- Windows
OU812 #3031170 10/02/20 04:10 AM
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Originally Posted by OU812
This surprised me too. The ASIO drivers were worse than the native Windows 10 drivers.

That's strange, when I run Pianoteq, the latency is completely unacceptable on Windows drivers while ASIO4All works great. I have a core i7-6600U and 24GB RAM on my laptop.

Re: Latency, Stuttering, etc -- Windows
Charles Cohen #3031190 10/02/20 05:40 AM
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@OU812: I, too, find that to be strange. Perhaps you did not make the buffer-size adjustments?
Buffer sizes at or above 512 (at 44.1 kHz) will produce enough latency to be noticed.

Re: Latency, Stuttering, etc -- Windows
Charles Cohen #3031201 10/02/20 06:12 AM
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I got better latency (objective, measured, not declared by driver in DAW) and stability (subjective) with ASIO driver than both ASIO4All and WASAPI. I will upload my results table later for reference.


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