Flute Acoustics

The flute blows a fast air flow through the hole in the pocket. The pressure in the mouth of the player is higher than the atmospheric pressure (usually 1 kpa: just enough to support a height difference of 10 cm with a water pressure gauge). (Http://newt.phys.unsw.edu.au/music/) Accelerating air injection is the source of the input power of the instrument. Vibration and air current are necessary for sound. Within the groove, air jets in the instrument and resonance in the air create flowing vibrational components.

Introduction of flute acoustics, introduction of clarinet acoustics, introduction of sax acoustics, a more detailed discussion of standing waves in pipelines, and use of alignment holes to generate harmonics. The effects of various holes are explained in detail in Pipes and Harmonics. Reed musical instruments are different: the end of the mouth of the player is not open to the outside air, so it is not free to get in and out of the air as much as possible. The pressure is not fixed at atmospheric pressure - indeed, it may be maximum at this closed end. Let's consider the clarinet: it is mainly cylindrical, it is open to the outside at the end of the bell, but it is closed at the end of the mouth

The flutes can be opened at one or both ends. Ocarina, xun, panpipe, whistle, bosun whistle are closed. As open flutes like concert flutes and tape recorders have more overtones, players have more flexibility and brighter tones. Organ tubes can be opened and closed according to the desired sound. Usually in D, wooden flute played European classical music primarily from the early 18th century to the early 19th century. Therefore, instruments are usually represented as baroque flutes. In the 19th century, the flutes of the Western concerts were gradually left behind and the baroque flute again became part of the historical knowledge performance practice from the late 20th century.

Western Concert Flute is a descendant of a medieval German flute, an upper horizontally long flute. An expansion hole is near the top and a flute is blown. The sound hole of the round hole of the flute is larger than the finger hole of the baroque predecessor. The sound hole used to create notes in the size and position of the flute range, key mechanism and keying mechanism and fingering system developed by Theobald Boehm from 1832 to 1847 is a musical instrument The dynamic range and tone of the sound has been greatly improved. With some improvements (and a rare exception to the Kingma system and other custom fitted fingering systems), the Western concert flute is usually designed to fit the Boehm design, the Boehm system. Beginner flutes are made of silver plated nickel, silver or brass, professionals use sterling silver, gold and sometimes platinum flutes. There is also a modern-day flute with a silver or gold keyboard usually