speakernoise

noun
UK /ˈspiːkə nɔɪz/
US /ˈspikər nɔɪz/

A crackly or buzzing sound that comes out of a speaker.

We heard a loud speakernoise when the microphone got too close.


OTHER MEANINGS

2. Unwanted background sound from a loudspeaker during a call or broadcast.

The speakernoise made it hard to hear the teacher online.

3. A hissing sound a speaker makes when the volume is turned up too high.

Turn it down—there's speakernoise coming from the left side.

4. Any noise a device makes that is not part of the music or speech.

The old radio had a constant speakernoise even when no station was on.