bellows normal

Just like the bow on a violin, the bellows play an important role in the sound and performance of a concertina. At a basic level, the bellows supply the air to the reeds and control the dynamics: the amount of pressure on the bellows determines the loudness of the sound.

1. : to make the loud deep hollow sound characteristic of a bull. 2. : to shout in a deep voice. transitive verb.

[English] A directive used with the accordion and other free aerophones that use bellows, to designate the rapid in and out movement of the bellows. This effect is similar to the tremolo on other instruments. The letters B.N. or the term "bellows normal" are the directives used to end this effect.

to shout in a loud voice, or (of a cow or large animal) to make a loud, deep sound: [ + speech ] "Keep quiet!" the teacher bellowed across the room. We could hear the sergeant bellowing orders to his troops. The bull bellowed in pain.

Various instruments use a bellows, to provide a constant flow of air. Accordions, some organs, and bagpipes all have this kind of bellows. In the 13th century, the word was belwes, literally "bags," from the Old English belg, "bag or purse."

BEL-loewz. [English] A mechanical device used to provide a stream of air to a musical instrument producing sound (vibrations). 1. A pneumatic device that pumps air into a pipe organ.

Examples from Collins dictionaries She prayed she wouldn't come in and find them there, bellowing at each other. He bellowed information into the mouthpiece of the phone. I was distraught and let out a bellow of tearful rage. A heifer bellowed in her stall.

The phrase "bellows groaned" is an idiom that means to make a loud, deep sound. It is often used to describe the sound of a blacksmith's bellows, or it can be used to describe the sound of someone who is struggling to breathe.

In music, "noise" has been variously described as unpitched, indeterminate, uncontrolled, convoluted, unmelodic, loud, otherwise unmusical, or unwanted sound, or simply as sound in general.

Bellow comes from Middle English, and means "to roar like a bull." A cow's deep moo is called a low, so bellow just adds a big angry bull to the standard moo. We use bellow for human speech that has that angry power of a loud bovine, or for any loud, threatening noise.

The bellows effect is when there are no bellows present (so no pump or device) but body movements result in a bellows effect which pumps air around and through clothing layers. The bellows effect can occur in gloves, suits and other types of clothing.

Producing Bellows To form the convolutions, water is pressed inside the tubes with a pressure of up to 250 bar. At the same time the tool is compressed. After hydroforming, the neck of the bellow is cut to the correct length, the shape of the bottom is formed, and the bellow gets its final length.