EWI
Encyclopedia
EWI is the name of AKAI
Akai
Akai is a consumer electronics brand, founded by Saburo Akai as , a Japanese manufacturer in 1929. It is now headquartered in Singapore as a subsidiary of Grande Holdings, a Hong Kong-based conglomerate, which also owns the formerly Japanese brands Nakamichi and Sansui. The Akai brand is now used...

's wind controller
Wind controller
A wind controller, sometimes referred to as a "wind synth", or "wind synthesizer", can be defined as a wind instrument capable of controlling one or more music synthesizers or other devices. Wind controllers are most commonly played and fingered like a woodwind instrument, usually the saxophone,...

, an electronic musical instrument
Electronic musical instrument
An electronic musical instrument is a musical instrument that produces its sounds using electronics. Such an instrument sounds by outputting an electrical audio signal that ultimately drives a loudspeaker....

 invented by Nyle Steiner. The early models consisted of two parts: a wind controller and a synthesizer
Synthesizer
A synthesizer is an electronic instrument capable of producing sounds by generating electrical signals of different frequencies. These electrical signals are played through a loudspeaker or set of headphones...

. The current model, EWI4000S, combines the two parts into one, placing the synthesizer in the lower section of the controller. It uses the Boehm fingering system
Boehm System
The Boehm system is a system of keywork for the flute, created by inventor and flautist Theobald Boehm between 1831 and 1847.Prior to the development of the Boehm system, flutes were most commonly made of wood, with an inverse conical bore, eight keys, and tone holes that were small in size, and...

 and is designed to be similar in action to a soprano saxophone
Soprano saxophone
The soprano saxophone is a variety of the saxophone, a woodwind instrument, invented in 1840. The soprano is the third smallest member of the saxophone family, which consists of the soprillo, sopranino, soprano, alto, tenor, baritone, bass, contrabass and tubax.A transposing instrument pitched in...

, although players familiar with the clarinet should have no problem adjusting to the fingering; the EWI instruments can also be played with a simpler fingering system that recorder players can play with very little adjustment. Modern instruments also can be switched to flute
Flute
The flute is a musical instrument of the woodwind family. Unlike woodwind instruments with reeds, a flute is an aerophone or reedless wind instrument that produces its sound from the flow of air across an opening...

, oboe
Oboe
The oboe is a double reed musical instrument of the woodwind family. In English, prior to 1770, the instrument was called "hautbois" , "hoboy", or "French hoboy". The spelling "oboe" was adopted into English ca...

 and even brass instruments fingering modes. Like a soprano sax, it is straight, and is held in front of the body with a neck strap. The major manufacturers of wind controllers are Akai
Akai
Akai is a consumer electronics brand, founded by Saburo Akai as , a Japanese manufacturer in 1929. It is now headquartered in Singapore as a subsidiary of Grande Holdings, a Hong Kong-based conglomerate, which also owns the formerly Japanese brands Nakamichi and Sansui. The Akai brand is now used...

 and Yamaha
Yamaha (manufacturer)
is a multinational corporation and conglomerate based in Japan with a wide range of products and services, predominantly musical instruments, electronics, motorcycles and power sports equipment.-History:...

. Available models include the AKAI EWI3020, AKAI EWI4000s, AKAI EWI USB, Yamaha WX5, Yamaha WX11, Yamaha WX7
Yamaha WX5
The Yamaha WX5/WX11/WX7 are models of monophonic MIDI wind controller musical instruments manufactured by the Yamaha Corporation. They have fingering similar to a flute, clarinet or saxophone. Like a keyboard controller, wind controllers send MIDI note information electronically to an external...

, and Synthophone. There is also a controller intended to be played by brass
Brass instrument
A brass instrument is a musical instrument whose sound is produced by sympathetic vibration of air in a tubular resonator in sympathy with the vibration of the player's lips...

 instrumentalists called an EVI (for Electronic Valve Instrument) also invented by Nyle Steiner. The Akai EWI4000S has a special EVI mode that allows brass players to play the EWI. More info on the EVI fingering system.
There are also homemade and experimental EWIs with different designs.

The wind controller part of the EWI has a mouthpiece
Mouthpiece (woodwind)
The mouthpiece of a woodwind instrument is that part of the instrument which is placed partly in the player's mouth. Single-reed instruments, capped double-reed instruments, and fipple flutes have mouthpieces while exposed double-reed instruments and open flutes do not.-Single-reed instruments:On...

 with sensors for air pressure (volume
Loudness
Loudness is the quality of a sound that is primarily a psychological correlate of physical strength . More formally, it is defined as "that attribute of auditory sensation in terms of which sounds can be ordered on a scale extending from quiet to loud."Loudness, a subjective measure, is often...

 control) and lip pressure (vibrato
Vibrato
Vibrato is a musical effect consisting of a regular, pulsating change of pitch. It is used to add expression to vocal and instrumental music. Vibrato is typically characterised in terms of two factors: the amount of pitch variation and the speed with which the pitch is varied .-Vibrato and...

). The EWI keys
Key (instrument)
A key is a specific part of a musical instrument. The purpose and function of the part in question depends on the instrument.On instruments equipped with tuning machines, violins and guitars, for example, a key is part of a tuning machine. It is a worm gear with a key shaped end used to turn a cog,...

 do not move, but work through conductivity, sensing the positioning of the fingers by electrical current; this allows for very fast playing. The octave
Octave
In music, an octave is the interval between one musical pitch and another with half or double its frequency. The octave relationship is a natural phenomenon that has been referred to as the "basic miracle of music", the use of which is "common in most musical systems"...

 is determined by a set of rollers operated by the left thumb. The wind controller is used to control a synthesizer. Some EWIs have to be attached to a specific synth module, and some have direct output to the MIDI
Musical Instrument Digital Interface
MIDI is an industry-standard protocol, first defined in 1982 by Gordon Hall, that enables electronic musical instruments , computers and other electronic equipment to communicate and synchronize with each other...

 interface. It is also possible to connect the EWI to a Digital Work Station (soundboard) to produce an even larger variety of sounds.

Though it is usually associated with jazz/rock fusion
Jazz fusion
Jazz fusion is a musical fusion genre that developed from mixing funk and R&B rhythms and the amplification and electronic effects of rock, complex time signatures derived from non-Western music and extended, typically instrumental compositions with a jazz approach to lengthy group improvisations,...

 and, more recently, with New Age music
New Age music
New Age music is music of various styles intended to create artistic inspiration, relaxation, and optimism. It is used by listeners for yoga, massage, meditation, and reading as a method of stress management or to create a peaceful atmosphere in their home or other environments, and is often...

, the EWI is a musically versatile instrument. The air pressure sensor allows for great dynamic
Dynamics (music)
In music, dynamics normally refers to the volume of a sound or note, but can also refer to every aspect of the execution of a given piece, either stylistic or functional . The term is also applied to the written or printed musical notation used to indicate dynamics...

 range, especially in combination with an analog synthesizer
Analog synthesizer
An analog or analogue synthesizer is a synthesizer that uses analog circuits and analog computer techniques to generate sound electronically. The earliest analog synthesizers in the 1920s and 1930s such as the Trautonium were built with a variety of vacuum-tube and electro-mechanical technologies...

. Tonal range
Range (music)
In music, the range of a musical instrument is the distance from the lowest to the highest pitch it can play. For a singing voice, the equivalent is vocal range...

 is also great, usually extending to 8 octave
Octave
In music, an octave is the interval between one musical pitch and another with half or double its frequency. The octave relationship is a natural phenomenon that has been referred to as the "basic miracle of music", the use of which is "common in most musical systems"...

s.

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