I have tried both wired and wireless, but the distortion is present (apparently to about the same degree) with both.
If there is no music playing (just wearing the headphones) nothing is heard. So it seems not be to be an additional sound injected from whatever the source is. Only when music or some other audio is playing does the problem occur.
I also tried playing some white noise (from this webpage): that is similarly affected by the distortion. So it is not just music, and not just iTunes.
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Thank you for contacting the Intel community.
Have you tried updating to the latest graphics driver, the latest graphics driver also contains the audio driver that can help you to solve this issue, you can download it here:
I would suggest uninstalling the audio driver that you have installed and then install the graphics driver.
Please let me know how it goes.
Thanks, I did update the graphics driver and it seems to have solved the problem. Many thanks!
I must say, this is the first time I have come across a graphics driver that also handles audio. Indeed there is now a device in Device Manager called "Intel(R) Display Audio"; and the original Realtek High Definition Audio device that I previously uninstalling per your instructions has now re-appeared.
Actually, if you have a modern NVIDIA or ATI (AMD) graphics card with HDMI output, their driver package will also install an audio driver (something has to channel digital audio to the HDMI connector(s)).
You should also have the RealTek HD Audio driver installed. This driver will support the front panel audio connector if/when it is in use.