On 04/07/2020 12:15, Chris Green wrote:
On Sat, Jul 04, 2020 at 11:58:41AM +0100, Bev Nicolson wrote:
I'm not sure if this is off topic or not but I could do with some help here. How do I reduce or remove the hum from my laptop? I use Mint and the sound gui doesn't offer much detail. (There's only one plug socket for headphones, btw.)
So, first question, from what you say I'd *guess* that you're connecting a cable from the 'headphone' output to an external speaker/amplifier of some sort. If so then the hum is most likely due to multiple earths through the cables between the laptop and the amplifier.
To expand. I've tried recording myself using headphones with a microphone. Hums. Tried using the microphone in the laptop. Hums. I have it plugged into the mains nearby so it doesn't use the battery.
Bev.