Audio Dropouts on a reasonably good PC

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BasUitermark
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Audio Dropouts on a reasonably good PC

Post by BasUitermark » Tue Aug 21, 2018 1:08 pm

Hey guys!

I'v been having enormous audio dropouts, to the point where it just skips most of the song, and I'm at a loss. The worst part is that it's seemingly inconsistant, some days it happens other days it doesn't.
On good days I can run a session with over 120 plugins on a buffer size of 128 with no problems. On bad days it gives minute long audio dropouts on a buffersize of 2048. When I change over to another audio interface it shows the same problems

I have tried about anything. Turning of power saving options, updating all my drivers, using the sweetwater performance guide, upgrading my pc.

PC Specs:

CPU: Intel i7-7820X 3.60 GHz
COOLER: be quiet! Dark Rock Pro 3
MOBO: MSI X299 Raider
RAM: Corsair DDR4 Vengeance LPX 2x8GB 2666 C16
GPU: XFX R9 280X Black Edition
PSU: Seasonic M12II 620W
OS: Windows 10
Audio Interface: Focusrite Saffire Pro 40

SSD 1: Samsung 850 Evo 250 GB
SSD 2: WD Blue WDS100T2B0A 1TB
HDD 1: WD Black WD3003 FZEX 3TB
HDD 2: WD Black WD4005FZBX 4TB

This is al the information I collected over the last couple of days:

Day #1 Thursday 16 Aug 2018 (Good Day):
Started up Cubase 9.5.30 at 10:30. Showed no problems whatsoever all day.

Buffer size 2048: During standby it reached a maximum of ~30% average load and real time peaks hovered around 0%. Task manager showed a 21% usage of the CPU and 5.5 Gb of RAM during standby.

I did no measurements during playback.

Day #2 Saturday 18 Aug 2018 (Bad Day):
Started up Cubase 9.5.30 at 18:30. Immediately the meters started spiking up to maximum and long audio dropouts concurred. Only when there is a small amount of tracks playing the dropouts lessen.

Buffer size 2048: During standby it reached a maximum of ~70% to 100% average load and real time peaks hovered around ~30%. Task manager showed a 40% usage of the CPU and 7 Gb of RAM during standby.
During playback it stays between 90% and a 100% average load and real time peaks hovers between 50% and 75%.

I did no measurements during playback of the task manager.

Day #3 Friday 19 Aug 2018 (Good Day):
Started up Cubase 9.5.30 at 12:30. Showed no problems whatsoever all day.

Buffer size 2048: During standby it reached a maximum of ~30% average load and real time peaks hovered around 15%. Task manager showed a 19% usage of the CPU and 4.2 Gb of RAM during standby.
During playback it reached a maximum of 60% to 70% average load and real time peaks hovered around 20%. Task manager showed between 26% and 29% usage of the CPU and 4.2 Gb of RAM during standby.

Buffer size 512: During standby it reached a maximum of ~40% average load and real time peaks hovered around ~25%. Task manager showed a 22% usage of the CPU and 4.3 Gb of RAM during standby.
During playback it reached a maximum of 60% to 70% average load and real time peaks hovered around 25%. Task manager showed between 33% and 38% usage of the CPU and 4.3 Gb of RAM during standby.

Buffer size 256: During standby it reached a maximum of ~45% average load and real time peaks hovered around ~30%. Task manager showed a 24% usage of the CPU and 4.1 Gb of RAM during standby.
During playback it reached a maximum of 65% to 80% average load and real time peaks hovered around 35%. Task manager showed between 33% and 34% usage of the CPU and 4.1 Gb of RAM during standby.

Buffer size 128: During standby it reached a maximum of ~50% average load and real time peaks hovered around ~35%. Task manager showed a 27% usage of the CPU and 4.1 Gb of RAM during standby.
During playback it reached a maximum of 70% to 80% average load and real time peaks hovered around 50%. Task manager showed between 36% and 39% usage of the CPU and 4.1 Gb of RAM during standby.

At 17:00 I tried closing and opening Cubase to see if the time of day makes a difference to the performance. Upon closing Cubase froze. Forced closing through task manager.

Upon reopening Cubase on a buffersize of 256 I had an average load of 45% and real time peaks hovered around 5%. Task manager showed a 23% usage of the CPU and 6.7 Gb of RAM during standby.

Session Information:

Settings
Sample rate: 44.1 kHz
Bit Depth: 24 Bit

Project
Tracks:
Group tracks: 15 + 1 Instrument Bus + 1 Master Bus
Instrument tracks: 16
FX Tracks: 5
Audio Tracks: 56


Plugins used:

Fabfilter Pro-Q2: 40
Fabfilter Saturn: 6
Fabfilter Pro-MB: 3
Fabfilter Pro-R: 2
Fabfilter Pro-L: 2
Fabfilter Pro-C2: 1
Fabfilter Pro-L2: 1
Helix Native: 2
iZotope Ozone 7: 1
JST Sidewidener: 3
JST Finality Advanced: 1
JST BG-Bass: 1
JST BG-Guitars: 1
JST BG-Keys: 1
Klanghelm MJUC: 1
Lexicon Concerthall: 1
LX480 Complete: 1
Magic AB V2: 1
Slate Virtual Mix Rack: 5
Slate Virtual Tape Machine: 4
Slate Verbsuite: 1
Slate Trigger 2: 3
Soundtoys Echoboy: 4
Soundtoys Phase Mistress: 3
Soundtoys Pan Man: 1
SPL Transient Designer: 1
Valhalla Room: 16
Valhalla Shimmer: 4
Waves API-2500: 2
Waves C4: 1
Waves Rbass: 1
Waves MaxxBass: 1
Waves S1 Imager: 1
Waves Soundshifter Pitch: 1
Waves L1: 1
Waves SSL Comp: 1

Total VST plugins: 120

VSTi’s:
Kontakt: GetGood Drums 2.0
Kontakt: Impact Studio’s Inferno Bass (4x)
Kontakt: The Giant
JST Subdestroyer
Xfer Serum (x4)

Total VST plugins: 7

I hope anyone can help me, this is serieusly beginning to undermine my workflow.
Thank you

Martin.Jirsak
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Posts: 19324
Joined: Sun Mar 20, 2011 3:52 pm
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Re: Audio Dropouts on a reasonably good PC

Post by Martin.Jirsak » Thu Aug 23, 2018 7:26 am

Hi,

Try to use LatencyMon to test your system.
Martin Jirsak
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Cubase Training

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ed_ruggers
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Joined: Tue Aug 23, 2011 11:48 pm
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Re: Audio Dropouts on a reasonably good PC

Post by ed_ruggers » Mon Aug 27, 2018 12:18 am

Hi.

I also recommend the latencymon tool.

Could you also check in the windows taskmanager to see if any of your processor cores are maxing out when this happens? I have the same issue and I have tracked mine down to a 100 percent constant core usage on cpu 2. It would be good to know if you have the same issue here.

Cheers
Ed

James_Sullivan
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Joined: Mon Nov 18, 2019 10:05 am
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Re: Audio Dropouts on a reasonably good PC

Post by James_Sullivan » Mon Nov 18, 2019 10:22 am

BasUitermark wrote:
Tue Aug 21, 2018 1:08 pm

Plugins used:

Fabfilter Pro-Q2: 40
Fabfilter Saturn: 6
Fabfilter Pro-MB: 3
Fabfilter Pro-R: 2
Fabfilter Pro-L: 2
Fabfilter Pro-C2: 1
Fabfilter Pro-L2: 1
Helix Native: 2
iZotope Ozone 7: 1
JST Sidewidener: 3
JST Finality Advanced: 1
JST BG-Bass: 1
JST BG-Guitars: 1
JST BG-Keys: 1
Klanghelm MJUC: 1
Lexicon Concerthall: 1
LX480 Complete: 1
Magic AB V2: 1
Slate Virtual Mix Rack: 5
Slate Virtual Tape Machine: 4
Slate Verbsuite: 1
Slate Trigger 2: 3
Soundtoys Echoboy: 4
Soundtoys Phase Mistress: 3
Soundtoys Pan Man: 1
SPL Transient Designer: 1
Valhalla Room: 16
Valhalla Shimmer: 4
Waves API-2500: 2
Waves C4: 1
Waves Rbass: 1
Waves MaxxBass: 1
Waves S1 Imager: 1
Waves Soundshifter Pitch: 1
Waves L1: 1
Waves SSL Comp: 1

Total VST plugins: 120

VSTi’s:
Kontakt: GetGood Drums 2.0
Kontakt: Impact Studio’s Inferno Bass (4x)
Kontakt: The Giant
JST Subdestroyer
Xfer Serum (x4)

Total VST plugins: 7

I hope anyone can help me, this is serieusly beginning to undermine my workflow.
Thank you


Don't know if you solved your issues, but regarding your plugin list:
  • FabFilter - never have any performance issues
    iZotope - sometimes heavy, mainly if the plugin is visible so not so much an audio processing problem as much a visual rendering deficiency
    Valhalla - never have any performance issues
    Waves - never have any performance issues, but don't use them much these days.
    Klangheim - I have noticed that for some reason, at least on my system, MJUC is far heavier on the CPU in Nuendo and Cubase than it is say, in Ableton. And when I say heavy, I mean 7 instances of MJUC bringing down an i9 7940x.

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