Pausing/unpausing/scrubbing audio creates static crackles/pops

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  1. Posts : 61
    Windows 7 pro 64bit
       #1

    Pausing/unpausing/scrubbing audio creates static crackles/pops


    I can't figure this weird little issue out.
    I'm not sure how long this issue has been around on my PC because only recent situation made me aware of it.

    I was creating some SFX in audacity and I noticed any time I looped a specific type of audio there was a static pop/crackle at the end/start or during scrubbing, the SFX is a continuous droning bass loop to be used like a server humming etc, and any clip that ends or starts quiet doesn't seem to share this issue.

    I have tried updating my audio drivers, and video drivers, didn't fix it.
    I tested on speakers and also headphones, and in different jacks, crackles are on both, so it's deff coming from my PC, not faulty speakers.
    I tried most things in this help article that applied to my PC (minus updating BIOS drivers):
    Fix Audio Static Crackling Popping with Realtek Sound Card

    And just for a test, if you play this SFX (no DL, just play in browser), and pause/unpause during it, do you hear any static pops? or is it just my PC? lol
    Microsoft OneDrive - Access files anywhere. Create docs with free Office Online.

    I dunno what else to try to figure this out

    I'm happy to do any tests or provide screenshots to help diagnose this issue.

    Thanks guys

    Specs:
    Windows 7 pro 64bit
    Intel core i7 6700 @ 3.40ghz
    ASRock z170 extreme4
    32gb
    Nvidia gefoce GTX 970 MSI

    Realtek High Definition Audio. NVIDIA High Definition Audio. (both are shown in the device manager for sound)

    LG ultrawide - 2560 x 1080
    Keyboard
    logitech G510s
    Mouse
    logitech g502

    Browser
    Chrome/firefox

    Audio Playback Devices:
    Realtek Digital Output (Realtek High Definition Audio)
    Speakers (Realtek High Definition Audio) (default)
    LG ULTRAWIDE (NVIDIA High Definition Audio)
      My Computer


  2. Posts : 1,784
    Linux Mint 18.2 xfce 64-bit (VMWare host) / Windows 8.1 Pro 32-bit (VMWare guest)
       #2

    Set up a virtual machine with Linux Mint in the VM. Install Audacity in Linux. Try it in Audacity in Linux, to see if the problem persists there. If this is a Windows or a driver issue, it won't exist in Linux.
      My Computer


  3. Posts : 31,242
    Windows 11 Pro x64 [Latest Release and Release Preview]
       #3

    @fireberd is the go to guy for audio here,

    I assume the audio you have is the onboard default system, I think this could be at least part of the issue as on-board sound is always a compromise between cost and performance, and the quality would be increased with an additional bespoke Audio card. Other thing to check is the placement of the power cables with relation to the audio components
      My Computers


  4. Posts : 61
    Windows 7 pro 64bit
    Thread Starter
       #4

    mrjimphelps said:
    Set up a virtual machine with Linux Mint in the VM. Install Audacity in Linux. Try it in Audacity in Linux, to see if the problem persists there. If this is a Windows or a driver issue, it won't exist in Linux.
    Is it safe to do this? I will give it a shot though, just don't wanna go messing around with the registry or stuff of that nature
      My Computer


  5. Posts : 8,135
    Windows 10 64 bit
       #5

    I listened to the sample clip. I wouldn't call it "crackling" just sounds like a momentary dropout. Since it appears, from your post, to be what you are creating in Audacity I would suspect that is where the problem is generated and not really a problem with the PC audio.

    Also, don't confuse the HDMI audio with the PC audio (Realtek). If you are not using HDMI audio it has no affect (and in most cases HDMI is generated in the video card separate from the PC audio such as Realtek).

    (I have a recording studio using Cakewalk Sonar and Studio One 3).
      My Computer


  6. Posts : 61
    Windows 7 pro 64bit
    Thread Starter
       #6

    fireberd said:
    I listened to the sample clip. I wouldn't call it "crackling" just sounds like a momentary dropout. Since it appears, from your post, to be what you are creating in Audacity I would suspect that is where the problem is generated and not really a problem with the PC audio.

    Also, don't confuse the HDMI audio with the PC audio (Realtek). If you are not using HDMI audio it has no affect (and in most cases HDMI is generated in the video card separate from the PC audio such as Realtek).

    (I have a recording studio using Cakewalk Sonar and Studio One 3).

    Okay well I did think it could simply be that I made my SFX incorrectly, so I looked at other audio sources, but I still get the pop too, Eg: Forest Ambience Sounds, Sci Fi Insect and Fantasy Creature Sound Effects for Download - Exoplanet - YouTube pausing/unpausing also gives me the popping noises.

    Well my audio comes from my speakers being plugged in the normal jack at the back, I dont use HDMI for my audio, unless you mean something else (im obv a noob at audio just FYI lol)
      My Computer


  7. Posts : 8,135
    Windows 10 64 bit
       #7

    I don't get any pops/crackles etc on the YouTube audio so its back to your system.
    Your system is similar to mine, ASUS ROG Z170 motherboard and an i7 6700K and Realtek sound.

    Download and run the free Resplendence Latency Mon. See what that shows. This program is very "picky" and has lots of data (I actually call it data overload) but it may show what is causing it.

    http://www.resplendence.com/latencymon
      My Computer


  8. Posts : 8,135
    Windows 10 64 bit
       #8

    One other thought, for testing. Uninstall Realtek in the Device Manager (and the drivers). Then restart the PC and Windows will (should) install the generic High Definition Audio driver. See what happens with this driver, again for testing.
      My Computer


  9. Posts : 1,784
    Linux Mint 18.2 xfce 64-bit (VMWare host) / Windows 8.1 Pro 32-bit (VMWare guest)
       #9

    glenjj said:
    Is it safe to do this? I will give it a shot though, just don't wanna go messing around with the registry or stuff of that nature
    It is perfectly safe. You don't have to touch the registry. And you have so much RAM that it should work very well.
      My Computer


  10. Posts : 61
    Windows 7 pro 64bit
    Thread Starter
       #10

    fireberd said:
    One other thought, for testing. Uninstall Realtek in the Device Manager (and the drivers). Then restart the PC and Windows will (should) install the generic High Definition Audio driver. See what happens with this driver, again for testing.
    Okay I ran it for a while, seems it found some issues :| and it described exactly the issue I'm having, so that's good.

    So what do I do next? the suggestions it gives arent something Im familiar with doing on windows.

    And thanks mrjimphelps, I'll look into testing that if this current testing fails, cheers

    (edit) oh and heres the report it gave me:
    ____________________________________________________________________________________________________ _____
    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 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 7:56:38 (h:mm:ss) on all processors.


    ____________________________________________________________________________________________________ _____
    SYSTEM INFORMATION
    ____________________________________________________________________________________________________ _____
    Computer name: GJ-PC
    OS version: Windows 7 Service Pack 1, 6.1, build: 7601 (x64)
    Hardware: ASRock, Z170 Extreme4
    CPU: GenuineIntel Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz
    Logical processors: 8
    Processor groups: 1
    RAM: 32715 MB total


    ____________________________________________________________________________________________________ _____
    CPU SPEED
    ____________________________________________________________________________________________________ _____
    Reported CPU speed: 3408 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): 20974.871198
    Average measured interrupt to process latency (µs): 2.809035

    Highest measured interrupt to DPC latency (µs): 5746.696461
    Average measured interrupt to DPC latency (µs): 0.757167


    ____________________________________________________________________________________________________ _____
    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): 245.477113
    Driver with highest ISR routine execution time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

    Highest reported total ISR routine time (%): 0.087461
    Driver with highest ISR total time: dxgkrnl.sys - DirectX Graphics Kernel, Microsoft Corporation

    Total time spent in ISRs (%) 0.100976

    ISR count (execution time <250 µs): 33030943
    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): 344.558099
    Driver with highest DPC routine execution time: tcpip.sys - TCP/IP Driver, Microsoft Corporation

    Highest reported total DPC routine time (%): 0.053287
    Driver with highest DPC total execution time: iusb3xhc.sys - Intel(R) USB 3.0 eXtensible Host Controller Driver, Intel Corporation

    Total time spent in DPCs (%) 0.152404

    DPC count (execution time <250 µs): 143351025
    DPC count (execution time 250-500 µs): 0
    DPC count (execution time 500-999 µs): 56
    DPC count (execution time 1000-1999 µs): 0
    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: chrome.exe

    Total number of hard pagefaults 69531
    Hard pagefault count of hardest hit process: 29009
    Highest hard pagefault resolution time (µs): 1008762.292840
    Total time spent in hard pagefaults (%): 0.063749
    Number of processes hit: 67


    ____________________________________________________________________________________________________ _____
    PER CPU DATA
    ____________________________________________________________________________________________________ _____
    CPU 0 Interrupt cycle time (s): 1244.068981
    CPU 0 ISR highest execution time (µs): 245.477113
    CPU 0 ISR total execution time (s): 231.018303
    CPU 0 ISR count: 33030943
    CPU 0 DPC highest execution time (µs): 307.274648
    CPU 0 DPC total execution time (s): 330.280332
    CPU 0 DPC count: 137187184
    ____________________________________________________________________________________________________ _____
    CPU 1 Interrupt cycle time (s): 583.711232
    CPU 1 ISR highest execution time (µs): 0.0
    CPU 1 ISR total execution time (s): 0.0
    CPU 1 ISR count: 0
    CPU 1 DPC highest execution time (µs): 253.237676
    CPU 1 DPC total execution time (s): 1.947490
    CPU 1 DPC count: 640085
    ____________________________________________________________________________________________________ _____
    CPU 2 Interrupt cycle time (s): 276.701443
    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): 228.330399
    CPU 2 DPC total execution time (s): 2.566825
    CPU 2 DPC count: 994198
    ____________________________________________________________________________________________________ _____
    CPU 3 Interrupt cycle time (s): 728.668220
    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): 298.473005
    CPU 3 DPC total execution time (s): 1.276198
    CPU 3 DPC count: 433105
    ____________________________________________________________________________________________________ _____
    CPU 4 Interrupt cycle time (s): 603.993392
    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): 297.394366
    CPU 4 DPC total execution time (s): 4.021379
    CPU 4 DPC count: 1336031
    ____________________________________________________________________________________________________ _____
    CPU 5 Interrupt cycle time (s): 566.326903
    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): 344.558099
    CPU 5 DPC total execution time (s): 1.098345
    CPU 5 DPC count: 285292
    ____________________________________________________________________________________________________ _____
    CPU 6 Interrupt cycle time (s): 479.584232
    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): 219.146127
    CPU 6 DPC total execution time (s): 5.194454
    CPU 6 DPC count: 1549801
    ____________________________________________________________________________________________________ _____
    CPU 7 Interrupt cycle time (s): 477.691150
    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): 211.685446
    CPU 7 DPC total execution time (s): 2.292005
    CPU 7 DPC count: 925385
    ____________________________________________________________________________________________________ _____
    Attached Thumbnails Attached Thumbnails Pausing/unpausing/scrubbing audio creates static crackles/pops-ok.jpg  
    Last edited by glenjj; 04 Apr 2018 at 04:30. Reason: added report
      My Computer


 
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