How to extract an analog speaker from a laptop dock without an audio-out port (can I use a USB-C to analog cable)?
How to extract an analog speaker from a laptop dock without an audio-out port (can I use a USB-C to analog cable)?
I own a Dell WD19DCS dock for my Dell Latitude 9420.
Because of an old KVM configuration, I prefer to link the dock via KVM to my speaker. How can I do this?
Can a basic USB-C to audio adapter be used? Will it function?
For example, see this link: https://www.amazon.com/Adapter-Drift-Ext...B07BTVQ8YC
They can connect using BlueTooth, but it’s better to use the BT adapter on your laptop and skip the cables.
It could work with BT. But I'm not sure how smoothly switching between computers would be.
So I decided to take the traditional route, connecting audio through a KVM.
I purchased this DAC:
https://www.amazon.com/KOOPAO-Adapt...YY...=UTF8&th=1
It functions, but the sound is a bit distorted and there are occasional skips or cracks when playing test tracks. I wouldn’t suggest it but will use it for MS Teams at the moment.
The bigger discovery was hearing a hum through all channels after setting it up. I assumed a ground loop was the cause, so I swapped in plug cables, updated the power supply, and even used an audio ground isolator.
Turns out the problem lies with my backlit Logitech K740 keyboard
https://www.logitech.com/en-us/products/...00914.html
The hum appears when the backlight is on. Keeping it at full brightness or turning it off eliminates the noise. The keyboard dimmer seems to be the culprit.
Therefore, switching to a fully digital setup might be a better option.
For now, I’m still checking if there’s a fix for USB, like a basic 5v-GND filter.