Usually, it is due to vibrations caused by the player's air/lip. A Flute vibrates due to the player's air hitting a sharp edge in the embouchure; single-reeds vibrate against the mouthpiece, whereas double-reeds vibrate against each other. In some brass, it is usually the player's lip that vibrates against the mouthpiece and reverberates throughout.
the sound comes from the vibration of the air as it passes the reed. the pitch of the sound is changed by changing the length of the column (thus forcing the wavelength to become longer) by holding down more keys.
The player of a reed instrument does not blow "on" the reed, in the manner of, say, a flute player blowing over the hole of the flute. The reed, whether single or double, is set up to provide a small aperture through which the player's air passes.
The description of the process, according to Arthur Benade, an acoustical physicist who specialized in the acoustics of musical instruments) is that the reed bends and cuts off the air flow, then springs back to open the aperture and allow the air to pass again. Part of this is described by Venturi, that moving air reduces air pressure, and part of it is very difficult to describe without intense mathematics.
The effect of the reed periodically stopping the air flow is to produce periodic changes in the air pressure in the pipe behind the reed, and the length of the tube, 'speaker ports', and configuration of the instrument affect pitch, as does the player's lip pressure on the reed.
These pressure variations are coupled to the air of the room by the bell of the instrument, which acts as an 'impedance coupler' between the bore of the instrument and the air around the instrument. For reed instruments, this coupling also takes place between the bore and the air surrounding the instrument through the finger-holes or pad-covered, open holes.
So the reed, modified by the fingered-length of the instrument, opens and closes to create vibrations which couple to the air, and from there, the listener's ears, which is the entire path of sound production.
The reed causes the column of air to vibrate. The vibrating air is what causes the sound.
When you Blow down by a reed the reed vibrates making a humming sound, the sound going down a tube changes into a perfect note.
the mouthiece
vibration
Vibrations
Wind instruments use air to create vibration which creates sound. Percussion instruments create sound through striking a Stretched membrane which produces sound or by the vibration of the instrument as a whole.
Yup. Most woodwinds are, actually.
The sound is produced by blowing air against a hard surface. For example, clarinets, saxophones, oboes, and bassoons have reeds, typically made of wood, which vibrate and produce sound. Flutes and piccolos produce sound when air is blown across an edge. Woodwinds are different from brass instruments (such as trumpets, trombones, and tubas) which rely on the vibrations of a player's lips to produce sound. The definition has almost nothing to do with the materials "wood" or "brass," because some woodwinds are made of brass (like a saxophone) and some brass instruments are wooden (like an alphorn).
marching bands usually have trumpets, mellophones, trombones, sousaphones, a drumline, and possibly flugelhorns. woodwinds include flute, clarinet, and alto sax. sometimes they don't have woodwinds because they want the brassy sound only.
Saxophones are from the Woodwind family because they are played from a reed, even though they are made out of brass.
fulke
the sound comes from the vibration of the air as it passes the reed. the pitch of the sound is changed by changing the length of the column (thus forcing the wavelength to become longer) by holding down more keys.
Wind instruments use air to create vibration which creates sound. Percussion instruments create sound through striking a Stretched membrane which produces sound or by the vibration of the instrument as a whole.
Yup. Most woodwinds are, actually.
The sound is produced by blowing air against a hard surface. For example, clarinets, saxophones, oboes, and bassoons have reeds, typically made of wood, which vibrate and produce sound. Flutes and piccolos produce sound when air is blown across an edge. Woodwinds are different from brass instruments (such as trumpets, trombones, and tubas) which rely on the vibrations of a player's lips to produce sound. The definition has almost nothing to do with the materials "wood" or "brass," because some woodwinds are made of brass (like a saxophone) and some brass instruments are wooden (like an alphorn).
That would be called a Mouthpiece. However, it is in no way a reed, because it involves no wood. Woodwinds use a wooden reed which buzzes against the mouthpiece to produce a sound. A brass instrument uses the players lips, buzzing at high frequency, to produce a sound.
Flutes don't use reeds, among the woodwinds in common use. The recorder, an older instrument not used in orchestras or bands, also doesn't use a reed.
they have a reed or mouthpiece and thier sound is sometimes higher than brass instruments
Sound is vibrations in a physical medium (usually air). Sound is produced by a release of energy that causes a vibration in the medium. Sound can not therefore be in a place where there is no medium (empty space).
Sound is vibrations in a physical medium (usually air). Sound is produced by a release of energy that causes a vibration in the medium. Sound can not therefore be in a place where there is no medium (empty space).
The same way normal drums do--the vibration of the top causes sound.
The column of air within the flute vibrates as the player causes turbulence by blowing across the mouthpiece.