Try plugging the speaker into a different AC outlet. It may need to be grounded since it doesn’t have a three prong AC plug. If you can a place to ground the speaker that might help. No matter what’s the volume, no matter if the speaker is activated or not(in the windows audio manager) it makes a high pitched noise.
In this manner, how do you fix an electrical ground loop?
The ground loop can be eliminated in one of two ways:
- Remove one of the ground paths, thus converting the system to a single point ground.
- Isolate one of the ground paths with an isolation transformer, common mode choke, optical coupler, balanced circuitry, or frequency selective grounding.
Moreover, what is it called when a speaker makes a high pitched screech? Also referred to as ‘acoustic feedback‘, the Larsen Effect or simply ‘feedback’, audio feedback is that high-pitched squeal you occasionally hear when you speak on a microphone.
Beside above, why are my speakers screeching?
Audio feedback is the ringing noise (often described as squealing, screeching, etc) sometimes present in sound systems. It is caused by a “looped signal”, that is, a signal which travels in a continuous loop. In technical terms, feedback occurs when the gain in the signal loop reaches “unity” (0dB gain).