To express satisfaction by a humming noise.
To have the sensation of a humming noise; as, my head hums, -- a pathological condition.
The confused noise of a crowd or of machinery, etc., heard at a distance; as, the hum of industry.
The unwanted low frequency noise that sometimes is noticed in an audio signal and is usually caused by signals from the power line getting into the system.
Electrical disturbance at the power supply frequency or harmonics thereof.
A continuous 60Hz or 120Hz noise, caused by leakage of the household AC supply or its second harmonic into the signal path.
A form of low-frequency interference (esp. in the 60 Hz range). Sources include groud loops or AC electrical induction from electrical lines too close to audio lines.
Spurious electrical interference, usually picked up from a conventional alternating current power supply.
Unwanted audible noise components which occur when 60 Hz AC power line current is accidentally introduced into the audio signal.
A continuous undesired audio component at the frequency of the incoming AC power line, or a harmonic.
The effects of low frequency electromagnetic fields or currents exhibited as vertically moving horizontal bars on a television screen.
Interference that resembles a hum. This is often caused by lighting circuits close to audio devices.
An unwanted low-frequency noise originating from mains driven equipment and comprising harmonics of the mans frequency.
a humming noise; "the hum of distant traffic"
A low-frequency AM sound, noise, or interference, that can be at 60 Hz, or a harmonic of this frequency.
The lowest of the five low partials of a bell.
Electrical disturbance at the power supply frequency or harmonic.
A signal disturbance at the power supplyâ€(tm)s fundamental frequency and one or more of its harmonics.
A term used to describe an unwanted induction of mains frequency.
Audio electronic noise that has a steady low frequency pitch.
A continuous interference or noise at the frequency of, (or at twice the frequency of), the local AC line supply. In the United States hum occurs at 60 Hz or 120 Hz. In Europe it occurs at 50 Hz or 100 Hz.
The coupling of an unwanted frequency into other electrical signals. In audio, hum can be heard; in video, it can appear as waves or bars in the picture. Often it is an audible disturbance caused by the power supply, or an improper ground.
Term used to describe noise in a audio, video, or other system that comes from 60 Hz power or its harmonic(s). So named for the low-frequency humming sound produced in audio systems. Usually hum is the result of undesired coupling from a 60 Hz source or of inadequate filtering of the DC output of an AC input power supply. Symbol used to designate current. I2R Formula for power in watts, where I=current in amperes, R=resistance in ohms.
Unwanted low-frequency tone. Usually caused by 50Hz or 60Hz AC and its harmonics.
Audio noise that has a steady low frequency pitch often caused by interference from the AC power line.