Windows 10: Audio Crackling/Popping and DPC Latency Issues

Hi,

I seem to get Audio Crackling and Popping issues, after searching the web for a bit I noticed that this issue is generally tied to DPC Latency so I used LatencyMon to recorded for around 2 hours (stats below).

In my case it doesn't seem to happen immediately after start up generally around an hour of usage and I can easily notice it when video and audio during playback is desynced (and it happens gradually and usually ends with audio being 3ish seconds ahead of video) then the audio crackling begins.

I have tried a variety of solution including; upgrade/downgrading bios, updating/uninstalling/downgrading drivers for audio and gpu, disable HPET and dynamicTick, uninstalling updates or downloading the newest updates, etc. The usual steps to resolve issues. Unfortunately, nothing seems to help me in that regard and I haven't been able to find the cause.

Hopefully someone here can provide some suggestion on steps I should take to help resolve this issue.

Computer Info:
Mobo: MSI B550m Mortar Wifi
CPU: Ryzen 5 3600
GPU: Nvidia GTX 3060ti
Memory: Team Vulcan TUF Gaming DDR4-3200 (4x8GB)

Windows 10 20H2 OS Build: 19042.870

The soundcard itself is the one onboard. I have included the latest screenshot of LatencyMon and its stat page. Let me know if you would like more information.




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CONCLUSION
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Your system appears to be having trouble handling real-time audio and other tasks. You are likely to
experience buffer underruns appearing as drop outs, clicks or pops. One or more DPC routines that
belong to a driver running in your system appear to be executing for too long. At least one detected
problem appears to be network related. In case you are using a WLAN adapter, try disabling it to get
better results. One problem may be related to power management, disable CPU throttling settings in
Control Panel and BIOS setup. Check for BIOS updates.
LatencyMon has been analyzing your system for 2:05:23 (h:mm:ss) on all processors.


____________________________________________________________________________________________________ ___
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SYSTEM INFORMATION
____________________________________________________________________________________________________ ___
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Computer name: DESKTOP-10PE5RG
OS version: Windows 10, 10.0, version 2009, build: 19042
(x64)
Hardware: MS-7C94, Micro-Star International Co., Ltd.
CPU: AuthenticAMD AMD Ryzen 5 3600 6-Core Processor
Logical processors: 12
Processor groups: 1
RAM: 32694 MB total


____________________________________________________________________________________________________ ___
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CPU SPEED
____________________________________________________________________________________________________ ___
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Reported CPU speed: 360 MHz

Note: reported execution times may be calculated based on a fixed reported CPU speed. Disable variable
speed settings like Intel Speed Step and AMD Cool N Quiet in the BIOS setup for more accurate results.


____________________________________________________________________________________________________ ___
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MEASURED INTERRUPT TO USER PROCESS LATENCIES
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The interrupt to process latency reflects the measured interval that a usermode process needed to
respond to a hardware request from the moment the interrupt service routine started execution. This
includes the scheduling and execution of a DPC routine, the signaling of an event and the waking up of
a usermode thread from an idle wait state in response to that event.

Highest measured interrupt to process latency (s): 14751.80
Average measured interrupt to process latency (s): 7.605939

Highest measured interrupt to DPC latency (s): 14748.10
Average measured interrupt to DPC latency (s): 4.084324


____________________________________________________________________________________________________ ___
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REPORTED ISRs
____________________________________________________________________________________________________ ___
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Interrupt service routines are routines installed by the OS and device drivers that execute in response
to a hardware interrupt signal.

Highest ISR routine execution time (s): 85.750
Driver with highest ISR routine execution time: Wdf01000.sys - Kernel Mode Driver Framework
Runtime, Microsoft Corporation

Highest reported total ISR routine time (%): 0.003416
Driver with highest ISR total time: Wdf01000.sys - Kernel Mode Driver Framework
Runtime, Microsoft Corporation

Total time spent in ISRs (%) 0.003416

ISR count (execution time <250 s): 4949409
ISR count (execution time 250-500 s): 0
ISR count (execution time 500-1000 s): 0
ISR count (execution time 1000-2000 s): 0
ISR count (execution time 2000-4000 s): 0
ISR count (execution time >=4000 s): 0


____________________________________________________________________________________________________ ___
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REPORTED DPCs
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__
DPC routines are part of the interrupt servicing dispatch mechanism and disable the possibility for a
process to utilize the CPU while it is interrupted until the DPC has finished execution.

Highest DPC routine execution time (s): 10265.580
Driver with highest DPC routine execution time: ntoskrnl.exe - NT Kernel & System, Microsoft
Corporation

Highest reported total DPC routine time (%): 0.229869
Driver with highest DPC total execution time: nvlddmkm.sys - NVIDIA Windows Kernel Mode Driver,
Version 461.92 , NVIDIA Corporation

Total time spent in DPCs (%) 0.449850

DPC count (execution time <250 s): 39259699
DPC count (execution time 250-500 s): 0
DPC count (execution time 500-10000 s): 65331
DPC count (execution time 1000-2000 s): 12
DPC count (execution time 2000-4000 s): 30
DPC count (execution time >=4000 s): 6


____________________________________________________________________________________________________ ___
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REPORTED HARD PAGEFAULTS
____________________________________________________________________________________________________ ___
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Hard pagefaults are events that get triggered by making use of virtual memory that is not resident in
RAM but backed by a memory mapped file on disk. The process of resolving the hard pagefault requires
reading in the memory from disk while the process is interrupted and blocked from execution.

NOTE: some processes were hit by hard pagefaults. If these were programs producing audio, they are
likely to interrupt the audio stream resulting in dropouts, clicks and pops. Check the Processes tab to
see which programs were hit.

Process with highest pagefault count: msmpeng.exe

Total number of hard pagefaults 76779
Hard pagefault count of hardest hit process: 11989
Number of processes hit: 60


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PER CPU DATA
____________________________________________________________________________________________________ ___
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CPU 0 Interrupt cycle time (s): 721.097961
CPU 0 ISR highest execution time (s): 85.750
CPU 0 ISR total execution time (s): 1.036225
CPU 0 ISR count: 1650122
CPU 0 DPC highest execution time (s): 2345.580
CPU 0 DPC total execution time (s): 378.732973
CPU 0 DPC count: 35312978
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CPU 1 Interrupt cycle time (s): 100.271767
CPU 1 ISR highest execution time (s): 12.790
CPU 1 ISR total execution time (s): 1.015674
CPU 1 ISR count: 1500782
CPU 1 DPC highest execution time (s): 7559.780
CPU 1 DPC total execution time (s): 20.329019
CPU 1 DPC count: 1897628
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CPU 2 Interrupt cycle time (s): 50.027886
CPU 2 ISR highest execution time (s): 7.160
CPU 2 ISR total execution time (s): 0.090513
CPU 2 ISR count: 104869
CPU 2 DPC highest execution time (s): 215.150
CPU 2 DPC total execution time (s): 1.463935
CPU 2 DPC count: 407941
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CPU 3 Interrupt cycle time (s): 46.290205
CPU 3 ISR highest execution time (s): 5.010
CPU 3 ISR total execution time (s): 0.044678
CPU 3 ISR count: 48883
CPU 3 DPC highest execution time (s): 1105.40
CPU 3 DPC total execution time (s): 0.727993
CPU 3 DPC count: 240668
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CPU 4 Interrupt cycle time (s): 49.749873
CPU 4 ISR highest execution time (s): 5.760
CPU 4 ISR total execution time (s): 0.000765
CPU 4 ISR count: 797
CPU 4 DPC highest execution time (s): 207.620
CPU 4 DPC total execution time (s): 0.642534
CPU 4 DPC count: 224781
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CPU 5 Interrupt cycle time (s): 42.804415
CPU 5 ISR highest execution time (s): 2.210
CPU 5 ISR total execution time (s): 0.000083
CPU 5 ISR count: 85
CPU 5 DPC highest execution time (s): 188.860
CPU 5 DPC total execution time (s): 0.236624
CPU 5 DPC count: 90969
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CPU 6 Interrupt cycle time (s): 47.821343
CPU 6 ISR highest execution time (s): 2.380
CPU 6 ISR total execution time (s): 0.000036
CPU 6 ISR count: 28
CPU 6 DPC highest execution time (s): 189.320
CPU 6 DPC total execution time (s): 0.492780
CPU 6 DPC count: 153232
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CPU 7 Interrupt cycle time (s): 45.385683
CPU 7 ISR highest execution time (s): 0.0
CPU 7 ISR total execution time (s): 0.0
CPU 7 ISR count: 0
CPU 7 DPC highest execution time (s): 225.670
CPU 7 DPC total execution time (s): 0.255315
CPU 7 DPC count: 83451
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CPU 8 Interrupt cycle time (s): 51.064874
CPU 8 ISR highest execution time (s): 6.480
CPU 8 ISR total execution time (s): 0.244546
CPU 8 ISR count: 504409
CPU 8 DPC highest execution time (s): 10265.580
CPU 8 DPC total execution time (s): 0.635158
CPU 8 DPC count: 203570
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CPU 9 Interrupt cycle time (s): 46.948170
CPU 9 ISR highest execution time (s): 4.260
CPU 9 ISR total execution time (s): 0.035395
CPU 9 ISR count: 57888
CPU 9 DPC highest execution time (s): 10264.320
CPU 9 DPC total execution time (s): 0.329215
CPU 9 DPC count: 112626
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CPU 10 Interrupt cycle time (s): 59.317185
CPU 10 ISR highest execution time (s): 5.220
CPU 10 ISR total execution time (s): 0.184837
CPU 10 ISR count: 309045
CPU 10 DPC highest execution time (s): 10264.60
CPU 10 DPC total execution time (s): 0.930
CPU 10 DPC count: 255884
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CPU 11 Interrupt cycle time (s): 58.991265
CPU 11 ISR highest execution time (s): 6.110
CPU 11 ISR total execution time (s): 0.431375
CPU 11 ISR count: 772501
CPU 11 DPC highest execution time (s): 7576.350
CPU 11 DPC total execution time (s): 1.335925
CPU 11 DPC count: 341350
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:)

 

DPC Latency Issue - Random audio popping/crackling

I have been having audio popping/crackling for a few months now. I also get random 3-10 second intervals of pure white noise/static come out of nowhere when watching a video or listening
to music.

I'm not sure how to fix it.

I've tried:

• 
  
  Running memtest(no problems)
  
  Resetting my cpu overclock
  
  Reinstalling audio drivers, updating mobo
  
  Turning off fast startup
  
  Changing/reverting audio formats
  
  Updating graphics driver
  
  and possibly a few others I don't remember.
  

Any help would be greatly appreciated. Thank you.

Pics of Latencymon:







_____________________________________________________________________

The Latencymon Log:

_________________________________________________________________________________________________________

CONCLUSION

_________________________________________________________________________________________________________

Your system seems to be having difficulty handling real-time audio and other tasks. You may experience drop outs, clicks or pops due to buffer underruns. One or more DPC routines that belong to a driver
running in your system appear to be executing for too long. One problem may be related to power management, disable CPU throttling settings in Control Panel and BIOS setup. Check for BIOS updates.

LatencyMon has been analyzing your system for 0:17:47 (h:mm:ss) on all processors.

_________________________________________________________________________________________________________

SYSTEM INFORMATION

_________________________________________________________________________________________________________

Computer name: SHAAN

OS version: Windows 10 , 10.0, build: 16299 (x64)

Hardware: MS-7A11, MSI, Z170A KRAIT GAMING 3X (MS-7A11)

CPU: GenuineIntel Intel(R) Core(TM) i5-6600K CPU @ 3.50GHz

Logical processors: 4

Processor groups: 1

RAM: 16344 MB total

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CPU SPEED

_________________________________________________________________________________________________________

Reported CPU speed: 3504 MHz

Measured CPU speed: 1 MHz (approx.)

Note: reported execution times may be calculated based on a fixed reported CPU speed. Disable variable speed settings like Intel Speed Step and AMD Cool N Quiet in the BIOS setup for more accurate results.

WARNING: the CPU speed that was measured is only a fraction of the CPU speed reported. Your CPUs may be throttled back due to variable speed settings and thermal issues. It is suggested that you run a utility
which reports your actual CPU frequency and temperature.

_________________________________________________________________________________________________________

MEASURED INTERRUPT TO USER PROCESS LATENCIES

_________________________________________________________________________________________________________

The interrupt to process latency reflects the measured interval that a usermode process needed to respond to a hardware request from the moment the interrupt service routine started execution. This includes
the scheduling and execution of a DPC routine, the signaling of an event and the waking up of a usermode thread from an idle wait state in response to that event.

Highest measured interrupt to process latency (µs): 760.402271

Average measured interrupt to process latency (µs): 2.408340

Highest measured interrupt to DPC latency (µs): 758.941083

Average measured interrupt to DPC latency (µs): 0.908718

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REPORTED ISRs

_________________________________________________________________________________________________________

Interrupt service routines are routines installed by the OS and device drivers that execute in response to a hardware interrupt signal.

Highest ISR routine execution time (µs): 152.708333

Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

Highest reported total ISR routine time (%): 0.397360

Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

Total time spent in ISRs (%) 0.426395

ISR count (execution time <250 µs): 1697693

ISR count (execution time 250-500 µs): 0

ISR count (execution time 500-999 µs): 0

ISR count (execution time 1000-1999 µs): 0

ISR count (execution time 2000-3999 µs): 0

ISR count (execution time >=4000 µs): 0

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REPORTED DPCs

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DPC routines are part of the interrupt servicing dispatch mechanism and disable the possibility for a process to utilize the CPU while it is interrupted until the DPC has finished execution.

Highest DPC routine execution time (µs): 1493.638699

Driver with highest DPC routine execution time: storport.sys - Microsoft Storage Port Driver, Microsoft Corporation

Highest reported total DPC routine time (%): 0.370589

Driver with highest DPC total execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

Total time spent in DPCs (%) 0.955813

DPC count (execution time <250 µs): 13269454

DPC count (execution time 250-500 µs): 0

DPC count (execution time 500-999 µs): 337

DPC count (execution time 1000-1999 µs): 24

DPC count (execution time 2000-3999 µs): 0

DPC count (execution time >=4000 µs): 0

_________________________________________________________________________________________________________

REPORTED HARD PAGEFAULTS

_________________________________________________________________________________________________________

Hard pagefaults are events that get triggered by making use of virtual memory that is not resident in RAM but backed by a memory mapped file on disk. The process of resolving the hard pagefault requires
reading in the memory from disk while the process is interrupted and blocked from execution.

Process with highest pagefault count: none

Total number of hard pagefaults 0

Hard pagefault count of hardest hit process: 0

Highest hard pagefault resolution time (µs): 0.0

Total time spent in hard pagefaults (%): 0.0

Number of processes hit: 0

_________________________________________________________________________________________________________

PER CPU DATA

_________________________________________________________________________________________________________

CPU 0 Interrupt cycle time (s): 67.692004

CPU 0 ISR highest execution time (µs): 152.708333

CPU 0 ISR total execution time (s): 17.89080

CPU 0 ISR count: 1593621

CPU 0 DPC highest execution time (µs): 1493.638699

CPU 0 DPC total execution time (s): 31.076181

CPU 0 DPC count: 9917883

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CPU 1 Interrupt cycle time (s): 15.246016

CPU 1 ISR highest execution time (µs): 105.669521

CPU 1 ISR total execution time (s): 0.311294

CPU 1 ISR count: 100636

CPU 1 DPC highest execution time (µs): 339.543379

CPU 1 DPC total execution time (s): 8.243974

CPU 1 DPC count: 2894304

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CPU 2 Interrupt cycle time (s): 5.443245

CPU 2 ISR highest execution time (µs): 9.460046

CPU 2 ISR total execution time (s): 0.003366

CPU 2 ISR count: 3436

CPU 2 DPC highest execution time (µs): 100.865297

CPU 2 DPC total execution time (s): 0.713309

CPU 2 DPC count: 232278

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CPU 3 Interrupt cycle time (s): 5.146945

CPU 3 ISR highest execution time (µs): 0.0

CPU 3 ISR total execution time (s): 0.0

CPU 3 ISR count: 0

CPU 3 DPC highest execution time (µs): 112.364726

CPU 3 DPC total execution time (s): 0.776172

CPU 3 DPC count: 225350

_________________________________________________________________________________________________________

 

DPC Latency + Audio popping Dell G7

Hi,

I'm experiencing DPC latency issues and audio popping on my Dell G7. The DPC latency issues are causing some recordings in my DAW to skip which can happen at any random time.

The audio popping occurs when I haven't had any audio playing for a few moments. For example: I'll play a video, hear a "pop" out of the speakers, close the video, wait a few moments, reopen the video "pop" again.

I've run Latency Monitor which is showing issues with ACPI.sys and nvlddmkm.sys (See the attached screenshot).

Online everyone seems to have tried different things with/without success.

Has anyone here had this problem before?

Windows 10 Pro
Version 1909 (OS Build 18363.778)

- - - Updated - - -

Still running Latency Monitor at the moment and nvlddmkm.sys has disappeared

 

Audio Pop/Stutter/Crackle When Stopping Audio

I've been having this issue for the past two days, and I've tried everything to no avail.
Basically this is the issue:
I get a pop/crackle when I suddenly stop audio.
What I'm running:

• Schiit Uber Stack.
• Win 10 PC.

What I've tried:

• Tried onboard audio, still get the problem.
• Tried onboard audio on both my PC and laptop, still get the problem.
• Tried my stack on both PC and laptop, still get the problem.
• Tried using a DPC latency checker, everything seems fine there.
• Tried different headphones just in case, wasn't the issue.
• Tried changing audio format, still get the problem.
• +literally tried 99 other things *Tongue

That pop is happening when I suddenly stop the sound effect. I get that pop when a Windows notification shows up. My friend's voice on Discord also pops every couple of seconds (100% sure it's not his mic).
Any help is appreciated!
(Just to clarify, I made sure it's not a hardware issue, so something within Win 10 is screwing with me)

I WILL LITERALLY PAYPAL ANYONE WHO FINDS ME A SOLUTION $10 *chuckle

(Yup, I'm losing my mind and I'm that desperate lol)