Windows 10: Audio crackling, high DPC count ACPI.sys

Hi,

First things first, system info:

Windows 10 x64 V 10.0.18363

CPU: i9-9900K

MB: Asus Rog Maximus XI Hero

GPU: Aorus Gefore 1080Ti

Ram: 32GB DDR4 3200 MHz C16 XMP 2.0

Audio Interface: Komplete Audio 6

The issue:

I've been trying to fix my audio crackling literally for years now and keep giving up so I said I'd finally ask for help. I have tried a bunch of stuff from trawling through other peoples' posts and nothing has worked yet; disabling drivers, turning off bluetooth and wifi etc etc.

The problem seems to lie with the ACPI.sys driver and/or nvlddmkm.sys (see attached LatencyMon stats). The ACPI.sys driver seems to cause lots of issues in Dell laptops however I am on a desktop machine and it is driving me slowly insane.

There have been suggestions to make sure that the audio interface control panel is set up correctly, I've tried different buffer sizes, sample rates and buffer delays. Nothing helps. I have also tried disconnecting it and reconnecting which does help for a while but it eventually starts crackling again.

I have actually rebuilt my pc with a new motherboard, cpu and ram and the issue has remained so it is either an audio interface or driver issue, I'm inclined to think it's the latter. So my question is what can I do about it? Do I need these drivers at all? Can I disable them completely?

Any advice is much appreciated.

Thanks

https://preview.redd.it/t05c50hrw9c...bp&s=1dd84b21ca68ac69a3bd8612d91c389d0f9aa4fb

https://preview.redd.it/m5ia12hrw9c...bp&s=fe299c7d5a1cfd9342bb17d0a3dcc65b45c2d3a9

https://preview.redd.it/f1mm29hrw9c...bp&s=ab0b060fc465f0e2ff70d7bed8f834618f443b5b

https://preview.redd.it/z70lm7hrw9c...bp&s=f86d47ffa35c7ccddb196ab8aa5a4d4493a0627d

https://preview.redd.it/qcochjhrw9c...bp&s=261bc02221d9955a0d464b2079dd6e146b636fe6

https://preview.redd.it/efljy7hrw9c...bp&s=4c190f2828dd7ce034b5116af5a9ddc7a8dbe583

https://preview.redd.it/xutozchrw9c...bp&s=3c8e79688c4be562fe779502e712a625bc7118cd

https://preview.redd.it/99rtqbhrw9c...bp&s=ea2a2d10a1b49201510b7985e47c389d4d234800

submitted by /u/Gham_
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:)

 

high DPC latency and audio distortion (crackling and popping sounds)

Hi guys,

Yesterday evening I was watching some youtube videos when suddenly the sound cut out. I turned the volume back up only to find there was a loud staticky crackling pop as the only audio output. Audio output is fine on headphones.

I have a Lenovo Yoga 920 (with highest specs) with Windows 10 home 64x bit. Since the issue arose, I have tried several things:

- disable/enable drivers by REALTEK related to sound, and Qualcomm Wifi Network Adapter

-Reinstall drivers via windows and directly via REALTEK website

- Update Windows 10 OS as well as BIOS

- Messed around with several battery plan settings

- Restored PC to previous backup, then messed around with audio mixer. This helped, as there was no distortion until volume 20, but beyond that it was the exact same issue.

- Lastly, I resorted to just resetting my computer (deleting all files, etc.)

My next step would be to do a clean install of windows 10 but I need to be using my computer and was wondering if there is a better way.

I believe this is a software/driver related issue as I was partially able to fix it by messing with the mixer settings (even when not having restored my PC). However, this "fix" doesn't work since I reset my PC...

I installed LatencyMon, and the results are below:

____________________________________________________________________________________________________ _____
CONCLUSION
____________________________________________________________________________________________________ _____
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 0:00:37 (h:mm:ss) on all processors.


____________________________________________________________________________________________________ _____
SYSTEM INFORMATION
____________________________________________________________________________________________________ _____
Computer name: DESKTOP-LGEOIBC
OS version: Windows 8 , 6.2, build: 9200 (x64)
Hardware: 80Y7, LENOVO, LNVNB161216
CPU: GenuineIntel Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz
Logical processors: 8
Processor groups: 1
RAM: 16225 MB total


____________________________________________________________________________________________________ _____
CPU SPEED
____________________________________________________________________________________________________ _____
Reported CPU speed: 1992.0 MHz
Measured CPU speed: 3593.0 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.


____________________________________________________________________________________________________ _____
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): 929.927472
Average measured interrupt to process latency (µs): 8.979495

Highest measured interrupt to DPC latency (µs): 447.742857
Average measured interrupt to DPC latency (µs): 2.455677


____________________________________________________________________________________________________ _____
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): 111.240964
Driver with highest ISR routine execution time: ACPI.sys - ACPI Driver for NT, Microsoft Corporation

Highest reported total ISR routine time (%): 0.009347
Driver with highest ISR total time: Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft Corporation

Total time spent in ISRs (%) 0.011471

ISR count (execution time <250 µs): 3448
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


____________________________________________________________________________________________________ _____
REPORTED DPCs
____________________________________________________________________________________________________ _____
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): 2023.446285
Driver with highest DPC routine execution time: ndis.sys - Network Driver Interface Specification (NDIS), Microsoft Corporation

Highest reported total DPC routine time (%): 1.553956
Driver with highest DPC total execution time: ndis.sys - Network Driver Interface Specification (NDIS), Microsoft Corporation

Total time spent in DPCs (%) 1.770268

DPC count (execution time <250 µs): 85746
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 4786
DPC count (execution time 1000-1999 µs): 104
DPC count (execution time 2000-3999 µs): 1
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): 0.591193
CPU 0 ISR highest execution time (µs): 111.240964
CPU 0 ISR total execution time (s): 0.034046
CPU 0 ISR count: 3422
CPU 0 DPC highest execution time (µs): 718.909639
CPU 0 DPC total execution time (s): 0.306354
CPU 0 DPC count: 27570
____________________________________________________________________________________________________ _____
CPU 1 Interrupt cycle time (s): 0.245845
CPU 1 ISR highest execution time (µs): 13.325301
CPU 1 ISR total execution time (s): 0.000238
CPU 1 ISR count: 26
CPU 1 DPC highest execution time (µs): 727.685241
CPU 1 DPC total execution time (s): 0.039950
CPU 1 DPC count: 4244
____________________________________________________________________________________________________ _____
CPU 2 Interrupt cycle time (s): 4.614998
CPU 2 ISR highest execution time (µs): 0.0
CPU 2 ISR total execution time (s): 0.0
CPU 2 ISR count: 0
CPU 2 DPC highest execution time (µs): 2023.446285
CPU 2 DPC total execution time (s): 4.680427
CPU 2 DPC count: 32869
____________________________________________________________________________________________________ _____
CPU 3 Interrupt cycle time (s): 0.239530
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): 674.337349
CPU 3 DPC total execution time (s): 0.042118
CPU 3 DPC count: 4638
____________________________________________________________________________________________________ _____
CPU 4 Interrupt cycle time (s): 0.173858
CPU 4 ISR highest execution time (µs): 0.0
CPU 4 ISR total execution time (s): 0.0
CPU 4 ISR count: 0
CPU 4 DPC highest execution time (µs): 873.683735
CPU 4 DPC total execution time (s): 0.024456
CPU 4 DPC count: 3729
____________________________________________________________________________________________________ _____
CPU 5 Interrupt cycle time (s): 0.231268
CPU 5 ISR highest execution time (µs): 0.0
CPU 5 ISR total execution time (s): 0.0
CPU 5 ISR count: 0
CPU 5 DPC highest execution time (µs): 820.943775
CPU 5 DPC total execution time (s): 0.084043
CPU 5 DPC count: 6057
____________________________________________________________________________________________________ _____
CPU 6 Interrupt cycle time (s): 0.156598
CPU 6 ISR highest execution time (µs): 0.0
CPU 6 ISR total execution time (s): 0.0
CPU 6 ISR count: 0
CPU 6 DPC highest execution time (µs): 554.286647
CPU 6 DPC total execution time (s): 0.024860
CPU 6 DPC count: 4525
____________________________________________________________________________________________________ _____
CPU 7 Interrupt cycle time (s): 0.198202
CPU 7 ISR highest execution time (µs): 0.0
CPU 7 ISR total execution time (s): 0.0
CPU 7 ISR count: 0
CPU 7 DPC highest execution time (µs): 653.330321
CPU 7 DPC total execution time (s): 0.088627
CPU 7 DPC count: 7005
____________________________________________________________________________________________________ _____


Thank you in advance for your help!

 

High DPC/ ISR Latency

Hello community,

So by way of background, for a while now I have experienced issues regarding audio crackles and pops. This primarily occurs when using Cubase 9.5 but also exists outside of the software too, occasionally. After searching for solutions, I came across LatencyMon
and decided to start testing (the results of which can be found below). I should add that when trying it for the past few days, I have noticed that the 'Highest measured interrupt to process latency' changes between HDAudBus.sys and Wdf01000.sys.

Steps I have taken so far:

1) The first thing I did was simply to plug out all of the USB devices that were inserted in my computer one by one. One potentially notable piece of information is that I switched audio interface very recently - from the Focusrite 2i2 to the Audient iD4.
However, I experienced these issues with my last audio interface too. This step produced no differences.

2) I then, through device manager, disabled a huge variety of drivers one by one to see if there was a particular driver causing the issue. This primarily included network, audio and USB drivers. This step produced no differences.

3) Following this I downloaded Driver Booster and tried to update all outdated drives, of which there were many. This step produced no differences.

Pretty sure there were a few other minor things I have tried too such as disabling WiFi, antivirus and more. All produced no result.

More than happy to provide more details if necessary. Any help is greatly appreciated.

LatencyMon:

Code:

_________________________________________________________________________________________________________CONCLUSION_________________________________________________________________________________________________________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. 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  0:04:26  (h:mm:ss) on all processors._________________________________________________________________________________________________________SYSTEM INFORMATION_________________________________________________________________________________________________________Computer name:                                        DESKTOP-9TGICJAOS version:                                           Windows 10 , 10.0, build: 17134 (x64)Hardware:                                             N552VX, ASUSTeK COMPUTER INC.CPU:                                                  GenuineIntel Intel(R) Core(TM) i5-6300HQ CPU @ 2.30GHzLogical processors:                                   4Processor groups:                                     1RAM:                                                  12156 MB total_________________________________________________________________________________________________________CPU SPEED_________________________________________________________________________________________________________Reported CPU speed:                                   2304 MHzNote: 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._________________________________________________________________________________________________________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):   2250.220222Average measured interrupt to process latency (µs):   5.684522Highest measured interrupt to DPC latency (µs):       2190.220275Average measured interrupt to DPC latency (µs):       2.232872_________________________________________________________________________________________________________ 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):              149.830729Driver with highest ISR routine execution time:       HDAudBus.sys - High Definition Audio Bus Driver, Microsoft CorporationHighest reported total ISR routine time (%):          0.021921Driver with highest ISR total time:                   Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft CorporationTotal time spent in ISRs (%)                          0.023631ISR count (execution time <250 µs):                   82832ISR count (execution time 250-500 µs):                0ISR count (execution time 500-999 µs):                0ISR count (execution time 1000-1999 µs):              0ISR count (execution time 2000-3999 µs):              0ISR count (execution time >=4000 µs):                 0_________________________________________________________________________________________________________REPORTED DPCs_________________________________________________________________________________________________________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):              1638.547743Driver with highest DPC routine execution time:       Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft CorporationHighest reported total DPC routine time (%):          0.562742Driver with highest DPC total execution time:         Wdf01000.sys - Kernel Mode Driver Framework Runtime, Microsoft CorporationTotal time spent in DPCs (%)                          0.710236DPC count (execution time <250 µs):                   944181DPC count (execution time 250-500 µs):                0DPC count (execution time 500-999 µs):                162DPC count (execution time 1000-1999 µs):              4DPC count (execution time 2000-3999 µs):              0DPC 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.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:                 winword.exeTotal number of hard pagefaults                       643Hard pagefault count of hardest hit process:          323Number of processes hit:                              18_________________________________________________________________________________________________________ PER CPU DATA_________________________________________________________________________________________________________CPU 0 Interrupt cycle time (s):                       17.051465CPU 0 ISR highest execution time (µs):                149.830729CPU 0 ISR total execution time (s):                   0.251434CPU 0 ISR count:                                      82832CPU 0 DPC highest execution time (µs):                1638.547743CPU 0 DPC total execution time (s):                   7.498538CPU 0 DPC count:                                      938734_________________________________________________________________________________________________________CPU 1 Interrupt cycle time (s):                       6.104686CPU 1 ISR highest execution time (µs):                0.0CPU 1 ISR total execution time (s):                   0.0CPU 1 ISR count:                                      0CPU 1 DPC highest execution time (µs):                227.875868CPU 1 DPC total execution time (s):                   0.026960CPU 1 DPC count:                                      2310_________________________________________________________________________________________________________CPU 2 Interrupt cycle time (s):                       5.310433CPU 2 ISR highest execution time (µs):                0.0CPU 2 ISR total execution time (s):                   0.0CPU 2 ISR count:                                      0CPU 2 DPC highest execution time (µs):                203.476563CPU 2 DPC total execution time (s):                   0.009951CPU 2 DPC count:                                      1081_________________________________________________________________________________________________________CPU 3 Interrupt cycle time (s):                       5.152465CPU 3 ISR highest execution time (µs):                0.0CPU 3 ISR total execution time (s):                   0.0CPU 3 ISR count:                                      0CPU 3 DPC highest execution time (µs):                279.683160CPU 3 DPC total execution time (s):                   0.021462CPU 3 DPC count:                                      2222_________________________________________________________________________________________________________