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Realtek USB Audio 2.0

Herbert Hart 56 Reputation points
2021-12-24T08:32:09.48+00:00

The Realtek USB Audio 2.0 driver is very different from the HDA or UAD Realtek Driver. Unfortunately, it goes into D2 power state after 10 seconds causing popping noise. When a call for audio is needed, it takes around 750ms for the driver to reach D0 causing 750ms of lost audio. I’ve tried other Realtek USB Audio drivers and they all perform the same. The “generic” Windows USB Audio 2.0 driver is a good workaround although it doesn’t function as a 100% true driver. The compatibility is more about features than performance.
The Realtek USB Audio driver needs the power data to be revised preventing D2 or D1 power states… only then will the glitches be resolved.

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  1. Anonymous
    2021-12-24T14:02:28.617+00:00

    Looks like you can reach them here.
    https://www.realtek.com/en/cu-1-en/cu-1-usa-en

    --please don't forget to upvote and Accept as answer if the reply is helpful--

    1 person found this answer helpful.
  2. Herbert Hart 56 Reputation points
    2024-06-05T20:04:09.6166667+00:00

    Can you please share how you were able to monitor the Power States? I have recently bought ASUS ROG MAXIMUS Z790 DARK HERO board. This board came with ALC4082 Realtek chip with ESS9018 DAC.

    Goto device manager and open your device and find the details tab. Then click on the drop menu and find "Power data"

    "Current Power state" tells you what is going on concerning current power state.

    "D2" is the culprit here... Not alive but not exactly dead. It takes about 1/2 second for the device to go to full power... or the "D0" state, thus creating your popping noises. The only fix is getting another motherboard with an ALC 1220 codec or adding a PCIe sound card. The other option is complaining to ASUS and request/demand an updated driver be designed to avoid the D2 power state. It's not needed unless the computer actually goes into a Sleep state like S3. Screenshot 2024-06-05 153700

    1 person found this answer helpful.
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  3. Dennis Hermans 1 Reputation point
    2022-12-04T15:16:04.55+00:00

    Still the same problem with Realtek USB2.0 audio ALC4080 on a Z790 board.

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  4. Herbert Hart 56 Reputation points
    2022-12-04T17:55:11.987+00:00

    I've been using Realtek Driver 6.3.9600.2326 from the Microsoft update catalogue lately... it's not as annoying as earlier versions. It doesn't make the popping sound as often, and sometimes it doesn't make it at all. I've monitored the power states and witnessed it switching from D0 to D2 without speaker popping and it seems to stay in state D0 with normal activity on the computer like typing or using the mouse... which is a major improvement in the driver's performance. This driver isn't a true 100% fix, it's much better than previous versions.

    The Window generic USB 2.0 audio driver works quite well, and you will have no speaker popping sounds... the tradeoff is the Realtek control panel doesn't work with the Microsoft USB Audio 2.0 drivers.

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  5. Dennis Hermans 1 Reputation point
    2022-12-05T16:33:03.69+00:00

    At this moment i am using this one from intel.
    Microsoft usbaudio2.sys Version 10.0.22621.1 from the windows update and it works better.

    I did see they released a newer one from Realtek. This package contains the driver for the Realtek ALC4050 Audio for Windows 11.
    AUD_ALC4050-Win11-6.3.9600.2345

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