I have a Samsung Laptop PC with power supply which I want to use for streaming. When I do, and amplify the sound, there is an audible noise - very irritating on silent sections, but tolerable otherwise. Unplugging the power supply kills the interference, so I conclude it is the external power supply. The supply output is 19V/3.16A, so I imagine I have some voltage tolerance. The interference sounds like white noise - no set frequency, but audible.
Has anyone found a good approach to this problem? My first idea (Space is tight) was a choke between 1st & second electrolytics to give a low pass effect, but I have not tried this yet.
Has anyone found a good approach to this problem? My first idea (Space is tight) was a choke between 1st & second electrolytics to give a low pass effect, but I have not tried this yet.