I’ve been using a Plugable UD-CA1A docking station for a while now, and while the audio worked fine at first, it stopped working a few months ago. I suspect it breaking down after a Windows Update.
When playing audio (tried with various applications, such as VLC, Windows Media Player and Firefox), the audio sounds as if the headphone jack is not plugged in properly. The reason I suspect this is a software- rather than a hardware issue, is that when I test the audio by changing the volume with the bottom-right speaker icon, the test-sound plays perfectly fine.
I’ve been trying various ways to solve this (disabling/enabling the audio driver, setting it as the default audio device, disabling all other audio drivers, restoring defaults, finding driver updates, the works.
Also note that the broken audio is the only thing malfunctioning at this point; otherwise I am perfectly satisfied. However, since the audio-jacks in the docking station were a big draw for my purchase, I hope someone can give me some advice.
Thank you for contacting us regarding this issue, that is very odd behavior and I am happy to help!
With the Windows test sounds (wav files) sounding normal this definitely could be software fault or setting.
If the laptop has other audio outputs or speakers, are these similarly affected, or are sounds from these outputs normal with VLC, Windows Media Player, and Firefox?
We can start by resetting the output options in case an enhancement or advance option was set causing this behavior:
Right-click on the sound icon in the Windows system tray ( lower right corner of the display )
Select “Open Sound Settings” from the pop-up menu
On the right hand side of this window, select the “Sound Control Panel” link
In the new Window, Playback tab, double-click on the “Speakers USB Advanced Audio Device” or click once to select, then press the “Properties” button to open the Properties window
Select the “Levels” tab
Set the speaker volume to about 50%, sometimes levels closer to 100% may cause distortion
Select the “Speakers” section “Balance” button, and set both sliders to the same value ( approximately 50% recommended )
Select the “Enhancements” tab, then check the box to “Disable All Enhancements”
Select the “Advanced” tab, select the “Restore Defaults” button
This should set the “Default Format” to “24 bit, 48000Hz (Studio Quality)” from the drop down menu
For headphones, please hold them off your head for this, and move closer to hear the audio Press the test button to test this setting
Select the “Spacial Sound” tab, set this to “Off” from the drop down menu
Please restart the computer and test the audio to see if it sounds better now
Additionally, please let me know if you are connecting a headset that has a built-in microphone and a single 3.5mm (TRRS) headset connector, or if you are using speakers, or headphones without a microphone, or with a separate microphone connector.