hum

1. : to sing with the lips closed and without uttering speech sounds distinctly. hum a tune. 2. : to express by making a vocal sound with the lips pressed together : to affect by humming.

A hum is a sound made by producing a wordless tone with the mouth closed, forcing the sound to emerge from the nose. To hum is to produce such a sound, often with a melody. It is also associated with thoughtful absorption, 'hmm'.

Synonyms of hum (verb buzz, vibrate) croon. moan. mumble. murmur.

If something hums, it makes a low continuous noise.

• The birds sang, the bees hummed. [ VERB]
• Within five hours, the equipment will be humming away again. [ VERB]
• There was a low humming sound in the sky. [ VERB-ing]

Hum was an Alternative Rock band mixed with Post-Hardcore formed in 1989; the band performed a mix between both genres obtaining a characteristic heaviness that would define them for the rest of their career (this sound is also known today as Heavy Alternative).

The Hum is a name often given to widespread reports of a persistent and invasive low-frequency humming, rumbling, or droning noise audible to many but not all people. Hums have been reported all over the world, including the United States, the United Kingdom, Australia and Canada.

They say it's only heard indoors, even in some rooms better than others, and it's low-pitched, like a distant truck idling. Some also feel a vibration, like Dale, but most just hear a hum. However, they all hear it at different times of day, and at varying intensities.

They do have proper spellings: mm-hmm, uh-huh, and uh-uh, the first two being positive affirmations. I have seen and known other spelling variants, though, most commonly mhm and nuh-uh.

The Hum Is a Low Frequency Sound Hum sufferers describe a low-frequency buzz accompanied by a rumbling vibration. It's worse at night, making it almost impossible to sleep.

Humming can improve heart rate variability Heart rate variability, or HRV, is an important metric that shows how well you are able to deal with and recover from stress. When you hum, you induce parasympathetic dominance, which means you move out of “fight or flight” stress mode into relaxation.

Longer answer: First, humming increases the "internal resonance" your vocal chords produce. This increases your ability to hear yourself while humming, and so if you have any ability to perceive tone, you will also be better able to tune yourself while humming than while singing.

First, you should determine the type of hum you are dealing with. There are two basic types: 120Hz buzz, typically caused by ground loops, and 60Hz hum, typically a result of poor shielding, cable problems, or close proximity to strong magnetic fields. To determine which of these you have, listen to the two examples.