If you would like to measure how loud the sound is, dB, decibels, would be good. To give you a rough idea, a whisper is about 30 dB, a baby crying loudly about 100 dB. Also, if you like to measure the frequency or the wavelength, you can use Hertz.
IT CAN BE CALLED ALSO AS HUMMING DUE TO INDUCTION OR POOR INSULATION. NOISE CAN BE MEASURE USING DECIBEL METER.
decibels
Docile means submissive. And tone means a measure of noise or sound. So together it would be a submissive or low measure of noise or sound.
"Decibels"
decible
The most common measure used for sound and noise is decibels (dB). Decibels measure the intensity or loudness of a sound, with different levels corresponding to different sounds and their impact on human hearing.
Decibels
Signal to noise ratio is a measure of signal strength to the background noise. Engineers use the signal to noise ratio to improve digital signal processing.
decibels
The noise of a fan can be measured in decibels using a sound pressure level meter. Knowing the level of noise allows people to classify as pollution or conducive.
The noise ratio of an audio recording is the ratio of the signal (desired sound) to the noise (unwanted sound) present in the recording. It is a measure of how much unwanted noise is present compared to the desired sound.
The noise reduction rating (NRR) scale is used to measure how well noise reduction products, like earplugs or earmuffs, can reduce the intensity of noise. The higher the NRR number, the more effective the product is at reducing noise.