Popping/Crackling sounds

Michael26841

Michael26841

New member
Joined
Jan 27, 2020
Posts
2
In the past few days I've been hearing some occasional crackling or popping noises whenever I'm using my Bluetooth headphones or wired earbuds, even when there's no audio playing at the moment. I'm still currently not sure of the cause, whether it's due to interference, something wrong with my computer, or if it's just me.

I've tried running LatencyMon on my computer but I can't make heads or tails of the diagnosis, so I'm hoping someone here could help me with it.

I have already attempted to fix the issue by updating my BIOS, disabling audio enhancements, and setting the audio quality to the lowest CD quality.

My computer specs:
CPU: Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz 2.00 GHz
RAM: SK Hynix 16GB 2400 MHz
Motherboard: LENOVO 81CA
GPU: Intel(R) UHD Graphics 620, NVIDIA GeForce MX130
SSD: NVMe SAMSUNG MZVLB512




Here's the LatencyMon report:
_________________________________________________________________________________________________________
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 0:22:39 (h:mm:ss) on all processors.


_________________________________________________________________________________________________________
SYSTEM INFORMATION
_________________________________________________________________________________________________________
Computer name: DESKTOP-GS27JHL
OS version: Windows 10 , 10.0, version 1903, build: 18362 (x64)
Hardware: 81CA, LENOVO, LNVNB161216
CPU: GenuineIntel Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz
Logical processors: 8
Processor groups: 1
RAM: 16250 MB total


_________________________________________________________________________________________________________
CPU SPEED
_________________________________________________________________________________________________________
Reported CPU speed: 1992 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.

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): 1453.70
Average measured interrupt to process latency (µs): 5.110116

Highest measured interrupt to DPC latency (µs): 1421.20
Average measured interrupt to DPC latency (µs): 1.396188


_________________________________________________________________________________________________________
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): 263.758032
Driver with highest ISR routine execution time: HDAudBus.sys - High Definition Audio Bus Driver, Microsoft Corporation

Highest reported total ISR routine time (%): 0.002644
Driver with highest ISR total time: HDAudBus.sys - High Definition Audio Bus Driver, Microsoft Corporation

Total time spent in ISRs (%) 0.005018

ISR count (execution time <250 µs): 77913
ISR count (execution time 250-500 µs): 0
ISR count (execution time 500-999 µs): 1
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): 2202.021586
Driver with highest DPC routine execution time: ndis.sys - Network Driver Interface Specification (NDIS), Microsoft Corporation

Highest reported total DPC routine time (%): 0.020822
Driver with highest DPC total execution time: rspLLL64.sys - Resplendence Latency Monitoring and Auxiliary Kernel Library, Resplendence Software Projects Sp.

Total time spent in DPCs (%) 0.081615

DPC count (execution time <250 µs): 2123104
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 2181
DPC count (execution time 1000-1999 µs): 23
DPC count (execution time 2000-3999 µs): 2
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.

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 5883
Hard pagefault count of hardest hit process: 1749
Number of processes hit: 68


_________________________________________________________________________________________________________
PER CPU DATA
_________________________________________________________________________________________________________
CPU 0 Interrupt cycle time (s): 44.571359
CPU 0 ISR highest execution time (µs): 263.758032
CPU 0 ISR total execution time (s): 0.544871
CPU 0 ISR count: 77839
CPU 0 DPC highest execution time (µs): 960.925703
CPU 0 DPC total execution time (s): 6.282278
CPU 0 DPC count: 2012471
_________________________________________________________________________________________________________
CPU 1 Interrupt cycle time (s): 30.751413
CPU 1 ISR highest execution time (µs): 64.362952
CPU 1 ISR total execution time (s): 0.000734
CPU 1 ISR count: 75
CPU 1 DPC highest execution time (µs): 585.674699
CPU 1 DPC total execution time (s): 0.108614
CPU 1 DPC count: 14264
_________________________________________________________________________________________________________
CPU 2 Interrupt cycle time (s): 34.304461
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): 2202.021586
CPU 2 DPC total execution time (s): 1.892327
CPU 2 DPC count: 48775
_________________________________________________________________________________________________________
CPU 3 Interrupt cycle time (s): 43.858704
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): 776.770080
CPU 3 DPC total execution time (s): 0.065347
CPU 3 DPC count: 6260
_________________________________________________________________________________________________________
CPU 4 Interrupt cycle time (s): 28.643448
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): 719.409639
CPU 4 DPC total execution time (s): 0.201679
CPU 4 DPC count: 19053
_________________________________________________________________________________________________________
CPU 5 Interrupt cycle time (s): 44.310420
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): 792.337349
CPU 5 DPC total execution time (s): 0.136575
CPU 5 DPC count: 5943
_________________________________________________________________________________________________________
CPU 6 Interrupt cycle time (s): 28.086523
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): 609.465361
CPU 6 DPC total execution time (s): 0.134650
CPU 6 DPC count: 13961
_________________________________________________________________________________________________________
CPU 7 Interrupt cycle time (s): 43.889504
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): 384.235944
CPU 7 DPC total execution time (s): 0.052646
CPU 7 DPC count: 4583
_________________________________________________________________________________________________________
 
A bit of a follow up, I let LatencyMon run for a bit longer in a new session and the Highest Measured interrupt to process latency and Highest reported DPC routine execution time skyrocketed. Here's a screenshot and the stats for that session


_________________________________________________________________________________________________________
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 0:32:54 (h:mm:ss) on all processors.


_________________________________________________________________________________________________________
SYSTEM INFORMATION
_________________________________________________________________________________________________________
Computer name: DESKTOP-GS27JHL
OS version: Windows 10 , 10.0, version 1903, build: 18362 (x64)
Hardware: 81CA, LENOVO, LNVNB161216
CPU: GenuineIntel Intel(R) Core(TM) i7-8550U CPU @ 1.80GHz
Logical processors: 8
Processor groups: 1
RAM: 16250 MB total


_________________________________________________________________________________________________________
CPU SPEED
_________________________________________________________________________________________________________
Reported CPU speed: 1992 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.

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): 144406669.80
Average measured interrupt to process latency (µs): 126.939721

Highest measured interrupt to DPC latency (µs): 686.50
Average measured interrupt to DPC latency (µs): 1.402532


_________________________________________________________________________________________________________
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): 199.076305
Driver with highest ISR routine execution time: HDAudBus.sys - High Definition Audio Bus Driver, Microsoft Corporation

Highest reported total ISR routine time (%): 0.001027
Driver with highest ISR total time: HDAudBus.sys - High Definition Audio Bus Driver, Microsoft Corporation

Total time spent in ISRs (%) 0.001646

ISR count (execution time <250 µs): 36026
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): 49650.590361
Driver with highest DPC routine execution time: iaStorAC.sys - Intel(R) Rapid Storage Technology driver - x64, Intel Corporation

Highest reported total DPC routine time (%): 0.005471
Driver with highest DPC total execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

Total time spent in DPCs (%) 0.031805

DPC count (execution time <250 µs): 838688
DPC count (execution time 250-500 µs): 0
DPC count (execution time 500-999 µs): 752
DPC count (execution time 1000-1999 µs): 6
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.

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: system

Total number of hard pagefaults 22529
Hard pagefault count of hardest hit process: 3198
Number of processes hit: 126


_________________________________________________________________________________________________________
PER CPU DATA
_________________________________________________________________________________________________________
CPU 0 Interrupt cycle time (s): 19.654360
CPU 0 ISR highest execution time (µs): 199.076305
CPU 0 ISR total execution time (s): 0.256726
CPU 0 ISR count: 35493
CPU 0 DPC highest execution time (µs): 1347.011546
CPU 0 DPC total execution time (s): 2.882520
CPU 0 DPC count: 662704
_________________________________________________________________________________________________________
CPU 1 Interrupt cycle time (s): 14.105397
CPU 1 ISR highest execution time (µs): 103.386044
CPU 1 ISR total execution time (s): 0.002941
CPU 1 ISR count: 354
CPU 1 DPC highest execution time (µs): 431.904116
CPU 1 DPC total execution time (s): 0.119603
CPU 1 DPC count: 15503
_________________________________________________________________________________________________________
CPU 2 Interrupt cycle time (s): 16.635870
CPU 2 ISR highest execution time (µs): 13.117470
CPU 2 ISR total execution time (s): 0.000399
CPU 2 ISR count: 174
CPU 2 DPC highest execution time (µs): 49650.590361
CPU 2 DPC total execution time (s): 1.028716
CPU 2 DPC count: 46168
_________________________________________________________________________________________________________
CPU 3 Interrupt cycle time (s): 17.944266
CPU 3 ISR highest execution time (µs): 2.572289
CPU 3 ISR total execution time (s): 0.000003
CPU 3 ISR count: 1
CPU 3 DPC highest execution time (µs): 542.619478
CPU 3 DPC total execution time (s): 0.117943
CPU 3 DPC count: 15173
_________________________________________________________________________________________________________
CPU 4 Interrupt cycle time (s): 13.721683
CPU 4 ISR highest execution time (µs): 2.734940
CPU 4 ISR total execution time (s): 0.000003
CPU 4 ISR count: 1
CPU 4 DPC highest execution time (µs): 652.113956
CPU 4 DPC total execution time (s): 0.458075
CPU 4 DPC count: 48193
_________________________________________________________________________________________________________
CPU 5 Interrupt cycle time (s): 17.995691
CPU 5 ISR highest execution time (µs): 2.586345
CPU 5 ISR total execution time (s): 0.000003
CPU 5 ISR count: 1
CPU 5 DPC highest execution time (µs): 651.851406
CPU 5 DPC total execution time (s): 0.072730
CPU 5 DPC count: 10217
_________________________________________________________________________________________________________
CPU 6 Interrupt cycle time (s): 15.445696
CPU 6 ISR highest execution time (µs): 2.571787
CPU 6 ISR total execution time (s): 0.000003
CPU 6 ISR count: 1
CPU 6 DPC highest execution time (µs): 676.489960
CPU 6 DPC total execution time (s): 0.239238
CPU 6 DPC count: 28971
_________________________________________________________________________________________________________
CPU 7 Interrupt cycle time (s): 20.211701
CPU 7 ISR highest execution time (µs): 2.590361
CPU 7 ISR total execution time (s): 0.000003
CPU 7 ISR count: 1
CPU 7 DPC highest execution time (µs): 6081.045683
CPU 7 DPC total execution time (s): 0.105802
CPU 7 DPC count: 12519
_________________________________________________________________________________________________________
 

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