An electronic tuner is a device used by musicians to detect and display the pitch Pitch represents the perceived fundamental frequency of a sound. It is one of the four major auditory attributes of sounds along with loudness, timbre and sound source location. When the actual fundamental frequency can be precisely determined through physical measurement, it may differ from the perceived pitch because of overtones, also known as of notes played on musical instruments A musical instrument is constructed or used for the purpose of making the sounds of music. In principle, anything that produces sound can serve as a musical instrument. The history of musical instruments dates back to the beginnings of human culture. The academic study of musical instruments is called organology. The simplest tuners use LED lights or a needle to indicate approximately whether the pitch of the note played is lower, higher, or approximately equal to the desired pitch. More complex and expensive tuners indicate more precisely the difference between offered note and desired pitch.

Tuners vary in size from units that can fit in a pocket to table-top models or 19" rack-mount units. The more complex and expensive units are used by instrument technicians, piano tuners Piano tuning is the act of making minute adjustments to the tensions of the strings of a piano to properly align the intervals between their tones so that the instrument is in tune. The meaning of the term in tune in the context of piano tuning is not simply a particular fixed set of pitches. Fine piano tuning requires an assessment of the and luthiers A luthier is someone who makes or repairs stringed instruments. The word luthier comes from the French word luth which means "lute".[1]

The simplest tuners only detect and display the tuning for a single pitch (often "A" or "E") or for a small number of pitches, such as the six pitches used in the standard tuning of a guitar The guitar is a plucked string instrument, played either with fingers or a pick. The guitar consists of a body with a rigid neck to which the strings, generally six in number but sometimes more, are attached. Guitars are traditionally constructed of various woods and strung with animal gut or, more recently, with either nylon or steel strings (E,A,D,G,B,E). More complex tuners offer chromatic The chromatic scale is a musical scale with twelve equally spaced pitches, each a semitone apart. A chromatic scale is a nondiatonic scale having no tonic due to the symmetry of its equally spaced tones tuning, which allows all the 12 notes of the scale to be tuned. Some electronic tuners offer additional features, such as adjustable pitch calibration, different tempered In musical tuning, a temperament is a system of tuning which slightly compromises the pure intervals of just intonation in order to meet other requirements of the system scale options, the sounding of a desired pitch through an amplifier and speaker, and adjustable "read-time" settings which affect how long the tuner takes to measure the pitch of the note.

The most accurate tuning devices are strobe tuners, which work in a different way to regular electronic tuners; they are basically stroboscopes A stroboscope, also known as a strobe, is an instrument used to make a cyclically moving object appear to be slow-moving, or stationary. The principle is used for the study of rotating, reciprocating, oscillating or vibrating objects. Machine parts and vibrating strings are common examples. These can be used to tune any instrument, including the initial "beating" of steelpan Steelpans is a musical instrument originating from Trinidad and Tobago. Steel pan musicians are called pannists drums, bagpipes Bagpipes are a class of musical instrument, aerophones, using enclosed reeds fed from a constant reservoir of air in the form of a bag. Though the Scottish Great Highland Bagpipe and Irish uilleann pipes have the greatest international visibility, bagpipes of many different types come from different regions throughout Europe, Northern Africa, the, accordions Danish : Accordeon. Danish (standard-bass), Hungarian & Icelandic: Harmonika. French: Accordéon. German: Akkordeon. Italian: Fisarmonica. Norwegian: Trekkspill. Polish: Akordeon, harmonia. Russian: Bajan. Swedish: Dragspel, calliopes A calliope is a musical instrument that produces sound by sending a gas, originally steam or more recently compressed air, through large whistles, originally locomotive whistles, bells A bell is a simple sound-making device. The bell is a percussion instrument and an idiophone. Its form is usually a hollow, cup-shaped object, which resonates upon being struck. The striking implement can be a tongue suspended within the bell, known as a clapper, a small, free sphere enclosed within the body of the bell or a separate mallet or, the pins A pin is a device used for fastening objects or material together. It is usually made of steel, or on occasion copper or brass. It is formed by drawing out a thin wire, sharpening the tip, and adding a head. Nails are related, but are typically larger in Music Boxes A musical box is a 19th century automatic musical instrument that produces sounds by the use of a set of pins placed on a revolving cylinder or disc so as to pluck the tuned teeth of a steel comb. They were developed from musical snuff boxes of the 18th century and called carillons à musique. Some of the more complex boxes also have a tiny drum or any audio device much more accurately than regular LED, LCD or needle display tuners. However, strobe units are generally much more expensive, and the mechanical elements of a mechanical (rather than electronic-display) strobe require periodic servicing. Therefore, these tuners are mainly used by specialists and professional instrument technicians.

Contents

Types

Most tuners contain a microphone and/or an input jack (for electric instruments such as electric guitar An electric guitar is a guitar that uses the principle of electromagnetic induction to convert vibrations of its strings into electric signals. Since the generated signal is too weak to drive a loudspeaker, it is amplified before sending it to a loudspeaker. Since the output of an electric guitar is an electric signal, the signal may easily be), circuitry for detecting the pitch, and some type of display (an analog needle, an LCD simulated image of a needle, LED lights, or a spinning translucent disk illuminated by a strobing backlight). Some tuners have an output, or through-put, so the tuner can be connected 'in-line' from an electric instrument to an amplifier Generally, an amplifier or simply amp, is any device that changes, usually increases, the amplitude of a signal. The relationship of the input to the output of an amplifier—usually expressed as a function of the input frequency—is called the transfer function of the amplifier, and the magnitude of the transfer function is termed the gain or mixing console In professional audio, a mixing console, or audio mixer, also called a sound board, soundboard, mixing desk, or mixer is an electronic device for combining , routing, and changing the level, timbre and/or dynamics of audio signals. A mixer can mix analog or digital signals, depending on the type of mixer. The modified signals (voltages or digital. While small tuners are usually battery An electrical battery is a combination of one or more electrochemical cells, used to convert stored chemical energy into electrical energy. Since the invention of the first Voltaic pile in 1800 by Alessandro Volta, the battery has become a common power source for many household and industrial applications. According to a 2005 estimate, the powered, some tuners also have a jack for an optional AC In alternating current the movement (or flow) of electric charge periodically reverses direction. An electric charge would for instance move forward, then backward, then forward, then backward, over and over again. In direct current (DC), the movement (or flow) of electric charge is only in one direction power supply.

An IntelliTouch clip-on type tuner on a Mandolin A mandolin is a musical instrument in the lute family . It descends from the mandore, a soprano member of the lute family. The mandolin soundboard (the top) comes in many shapes—but generally round or teardrop-shaped, sometimes with scrolls or other projections. A mandolin may have f-holes, or a single round or oval sound hole. A round or oval headstock.

The waveform Waveform means the shape and form of a signal such as a wave moving in a solid, liquid or gaseous medium or a vacuum generated by a musical instrument is very complex, as it contains a number of harmonic partials, and it is constantly changing. For this reason the regular tuner must average a number of cycles of the note and use this average to drive its display. Any background noise In acoustics and specifically in acoustical engineering, background noise is any sound other than the sound being monitored. Background noise is a form of noise pollution or interference. Background noise is an important concept in setting noise regulations from other musicians or harmonic A harmonic of a wave is a component frequency of the signal that is an integer multiple of the fundamental frequency, i.e. if the fundamental frequency is f, the harmonics have frequencies 2f, 3f, 4f, . . . etc. The harmonics have the property that they are all periodic at the fundamental frequency, therefore the sum of harmonics is also periodic overtones from the musical instrument can easily "confuse" the electronic tuner's attempt to "lock" onto the input frequency. This is why the needle or display on regular electronic tuners tends to waver when a pitch is played. Small movements of the needle, or LED, usually represent a tuning error of 1 cent of a semitone. The typical accuracy of these types of tuners is around +/- 3 cents for quality needle tuners and +/- 9 cents of a semitone for the most inexpensive LED tuners. Some companies offer one type of tuner (e.g. Behringer, Quick Time and Fender focus on inexpensive pocket-sized tuners), while other companies, such as Boss and Korg, sell a range of standard, pedal, and rack-mountable tuners at varying levels of quality and features.

"Clip-on" tuners clip onto an instrument (commonly at the headstock Headstock or peghead is a part of guitar or similar stringed instrument. The main function of a headstock is holding the instrument's strings. Strings go from the bridge past the nut and are usually fixed on machine heads on headstock. Machine heads are used to tune the guitar by adjusting the tension of strings and, consequentially, the pitch of of a guitar or bridge A bridge is a device for supporting the strings on a stringed instrument and transmitting the vibration of those strings to some other structural component of the instrument in order to transfer the sound to the surrounding air of a violin or cello) and pick up vibrations, rather than using a microphone or input jack to sense the input frequency. It then displays the pitch of the instrument's vibration on its large LCD display. Clip-on tuners are less likely to be confused by background noise than a microphone-based tuner, because the clip-on tuners pick up the vibrations of the instrument directly from the body of the instrument.

The "String Master" tuner consists of a regular LED tuner where the electric instrument plugs into the unit's base with a 1/4" TRS A TRS connector also called an audio jack, phone plug, jack plug, stereo plug, mini-jack, mini-stereo, or headphone jack, is a common analog audio connector. It is cylindrical in shape, typically with three contacts, although sometimes with two (a TS connector) or four (a TRRS connector) cable, or an acoustic instrument via a microphone cable. The unit has a built-in motor which drives a string winder tool at the top to the unit. The unit is then placed over the tuning button of the machine head of the string to be tuned, and a note on the relevant string is played. The unit detects the input note and robotically A robot is an automatically guided machine which is able to do tasks on its own, almost always due to electronically-programmed instructions. Another common characteristic is that by its appearance or movements, a robot often conveys a sense that it has intent or agency of its own corrects the pitch to a desired frequency by mechanically turning the tuner button to the correct position. It monitors the change in frequency until the "in tune" signal is given.

Some electric guitar tuners are fitted to the instrument itself, such as the Sabine AX3000 and the "NTune" device. The NTune consists of a switching potentiometer A potentiometer is a three-terminal resistor with a sliding contact that forms an adjustable voltage divider. If only two terminals are used (one side and the wiper), it acts as a variable resistor or rheostat. Potentiometers are commonly used to control electrical devices such as volume controls on audio equipment. Potentiometers operated by a, a wiring harness, illuminated plastic display disc, a circuit board and a battery holder. The unit installs in place of an electric guitar's existing volume knob control. The unit functions as a regular volume knob when not in tuner mode. To operate the tuner, the player pulls the volume knob up. The tuner disconnects the guitar's output so the tuning process is not amplified. The lights on the illuminated ring, under the volume knob, indicate which note is being tuned. When the note is brought into tune a green "in tune" indicator light is illuminated. After tuning is complete the volume knob is pushed back down, disconnecting the tuner from the circuit and re-connecting the pickups A pickup device acts as a transducer that captures mechanical vibrations, usually from suitably-equipped stringed instruments such as the electric guitar, electric bass guitar or electric violin, and converts them to an electrical signal which can then be amplified, recorded and broadcast to the output jack.

Gibson guitars The Gibson Guitar Corporation, of Nashville, Tennessee, USA, is a manufacturer of acoustic and electric guitars. Gibson also owns and makes guitars under such brands as Epiphone, Kramer, Valley Arts, Tobias, Steinberger, and Kalamazoo. In addition to guitars, the company makes pianos through its Baldwin unit, Slingerland drums, as well as many released a model in 2008 called the "Robot Guitar". It is a customized version of either the Les Paul The Gibson Les Paul is a solid body electric guitar originally developed in the early 1950s. The Les Paul was designed by Ted McCarty in collaboration with popular guitarist Les Paul, whom Gibson enlisted to endorse the new model or SG In 1960, Gibson Les Paul sales were significantly lower than they had been in previous years, so in 1961 the model was given a completely new body style that was thinner and had two sharp cutaway horns that made the upper frets more accessible. The neck joint was also moved up about three frets. It was felt the new design could compete with the model. The guitar is fitted with a special tailpiece, looking like a regular unit, with in-built sensors that pick up the frequency of the strings. There is an illuminated control knob with which the player can select different tuning options. The headstock Headstock or peghead is a part of guitar or similar stringed instrument. The main function of a headstock is holding the instrument's strings. Strings go from the bridge past the nut and are usually fixed on machine heads on headstock. Machine heads are used to tune the guitar by adjusting the tension of strings and, consequentially, the pitch of is fitted with custom-built motorized machine heads that automatically tune the guitar. This system can assist the player to intonate the guitar when the unit is put into "intonation" mode, displaying how much adjustment the bridge requires with a system of flashing LEDs on the control knob.

Regular needle, LCD and LED display tuners

A needle, LCD or regular LED type tuner uses a microprocessor to measure the average period of the waveform. It uses this to then drive the needle or array of lights. The array of lights from LED that appears to move to left or right seems better than the meter needle of the early meter tuners. When the musician plays a single note, the tuner senses the input from the microphone A microphone is an acoustic-to-electric transducer or sensor that converts sound into an electrical signal. In 1876, Emile Berliner invented the first microphone used as a telephone voice transmitter. Microphones are used in many applications such as telephones, tape recorders, karaoke systems, hearing aids, motion picture production, live and or input jack (from an electric instrument). The tuner then displays the input frequency in relation to the desired pitch and indicates whether the pitch of that note is lower, higher, or approximately equal to the desired pitch Pitch represents the perceived fundamental frequency of a sound. It is one of the four major auditory attributes of sounds along with loudness, timbre and sound source location. When the actual fundamental frequency can be precisely determined through physical measurement, it may differ from the perceived pitch because of overtones, also known as. With needle displays, the note is in tune when the needle is in a 90o vertical position, with leftward or rightward deviations indicating that the note is flat or sharp, respectively. Tuners with a needle are often supplied with a backlight A backlight is a form of illumination used in liquid crystal displays . Backlights illuminate the LCD from the side or back of the display panel, unlike frontlights, which are placed in front of the LCD. Backlights are used in small displays to increase readability in low light conditions, and in computer displays and LCD televisions to produce, so that the display can be read on a darkened stage.

Sabine LED tuner

For block LED A light-emitting diode (pronounced /ˌɛl iː ˈdiː/) is a semiconductor light source. LEDs are used as indicator lamps in many devices, and are increasingly used for lighting. Introduced as a practical electronic component in 1962, early LEDs emitted low-intensity red light, but modern versions are available across the visible, ultraviolet and or LCD A liquid crystal display is a thin, flat electronic visual display that uses the light modulating properties of liquid crystals (LCs). LCs do not emit light directly display tuners, markings on the readout drift left if the note is flat and right if the note is sharp from the desired pitch. If the input frequency is matched to the desired pitch frequency the LEDs are steady in the middle and an 'in tune' reading is given.

Some LCD displays mimic Mimicry is the similarity of one species to another which protects one or both. This similarity can be in appearance, behaviour, sound, scent and even location, with the mimics found in similar places to their models needle tuners with a needle graphic that moves in the same way as a genuine needle tuner. Somewhat misleadingly, many LED displays have a 'strobe mode' that mimics strobe tuners by scrolling the flashing of the LEDs cyclically to simulate the display of a true strobe. However, these are all just display options. The way a regular tuner 'hears' and compares the input note to a desired pitch is exactly the same, with no change in accuracy. For more on how strobe tuners work see the dedicated section.

The least expensive models only detect and display a small number of pitches, often those pitches that are required to tune a given instrument (e.g., E, A, D, G, B, E of standard guitar tuning). While this type of tuner is useful for bands that only use stringed instruments such as guitar and electric bass, it is not that useful for tuning brass or woodwind instruments. Tuners at the next price point offer "chromatic tuning", which means that the device will detect and assess all of the pitches in the chromatic Diatonic and chromatic are terms in music theory that are most often used to characterize scales, and are also applied to intervals, chords, notes, musical styles, and kinds of harmony. They are very often used as a pair, especially when applied to contrasting features of the common practice music of the period 1600–1900 scale (e.g., C, C#, D, D#, etc.). Chromatic tuners can thus be used for Bb and Eb brass instruments such as saxophones and horns.

Many models have circuitry that automatically detects which pitch is being played, and then compares it against the correct pitch. Less expensive models require the musician to specify the target pitch via a switch or slider. Most low- and mid-priced electronic tuners only allow tuning to an equal temperament Equal temperament is a musical temperament, or a system of tuning in which every pair of adjacent notes has an identical frequency ratio. In equal temperament tunings, an interval — usually the octave — is divided into a series of equal steps . For classical music, the most common tuning system is twelve-tone equal temperament, inconsistently scale.

Electric guitar An electric guitar is a guitar that uses the principle of electromagnetic induction to convert vibrations of its strings into electric signals. Since the generated signal is too weak to drive a loudspeaker, it is amplified before sending it to a loudspeaker. Since the output of an electric guitar is an electric signal, the signal may easily be and electric bass The bass guitar is a stringed instrument played primarily with the fingers or thumb (either by plucking, slapping, popping, tapping, or thumping), or by using a plectrum players who perform concerts may use electronic tuners which are built into an effects pedal Effects units are electronic devices that affect the sound of an electric or electronic instrument or other audio source. Effects can be used in "real time", during a live performance , or in post-production, with recorded vocals and instruments. To use an effect in a live performance, the effect is plugged in to the electrical signal often called a "stomp box". These tuners have a rugged metal or heavy-duty plastic housing and a foot-operated switch to toggle between the tuner and a bypass mode. Professional guitarists may use a more expensive version of the LED tuner which is mounted in a rack-mount case, and has a larger range of LEDs, thus allowing a more accurate display of the flatness or sharpness. More expensive models allow the user to select reference pitches other than A440 A440 or Concert A or Middle A is the 440 Hz tone that serves as the standard for musical pitch. A440 is the musical note A above middle C . The term literally means that the A above Middle C = 440 vibrations per second.

Orchestral tuner allowing calibration for a variety of tunings and temperaments.

In some cases, this is used to select a different note, as in the case of bands which detune their guitars to "Eb" or "D" for a lower, more resonant sound. More subtle changes of a quarter tone or less can be made with some models. This enables instrumentalists to tune to a fixed pitch instrument such as an organ or piano that is not tuned to A440. Some Baroque Baroque music describes a style of European classical music approximately extending from 1600 to 1750. This era is said to begin in music after the Renaissance and was followed by the Classical era. The word "baroque" came from the Portuguese word barroco, meaning "misshapen pearl", a strikingly fitting characterization of the musicians playing period instruments perform at lower reference pitches such as A435. Some higher-priced electronic tuners allow tuning to a range of different temperaments, which is a feature of interest to some guitarists and to harpsichord players.

Some expensive tuners also include an on-board speaker and amplifier which can sound notes, either to facilitate tuning "by ear" or to act as a pitch reference point for intonation practice, while scales or arpeggios are being practiced. Another feature offered on the most expensive tuners is an adjustable "read time", which determines whether the circuitry will attempt to make a quick assessment of the pitch, or make its assessment over a longer period. Due to their combination of all the above mentioned features, very high-quality needle tuners are suitable for tuning the different types of instruments in an orchestra An orchestra is a sizable instrumental ensemble that contains sections of string, brass, woodwind, and percussion instruments. The term orchestra derives from the Greek ορχήστρα, the name for the area in front of an ancient Greek stage reserved for the Greek chorus. The orchestra grew by accretion throughout the eighteenth and nineteenth; these are sometimes called "orchestral tuners".

Strobe tuners

A mechanical strobe tuner. Note the rotating red strobe-disc on the right of the unit.

Strobe tuners (the popular term for stroboscopic tuners) are the most accurate type of tuner. There are three types of strobe tuners: The mechanical rotating disk strobe tuner, an LED array strobe in place of the rotating disk, and "virtual strobe" tuners with LCD displays or ones that work on personal computers A personal computer is any general-purpose computer whose size, capabilities, and original sales price make it useful for individuals, and which is intended to be operated directly by an end user, with no intervening computer operator. This is in contrast to the batch processing or time-sharing models which allowed large expensive mainframe. A strobe tuner shows the difference between a reference frequency and the musical note. Even the slightest difference between the two will show up as a rotating motion in the strobe display. The accuracy of the tuner is only limited by the internal frequency generator. The strobe tuner detects the pitch either from an TRS input jack or a built-in or external microphone connected to the tuner.

The first strobe tuner dates back to 1936 and was originally made by the Conn company; it was called the Stroboconn and was produced for approximately 40 years. However, these strobes are now mainly collector pieces. They had 12 strobe discs, driven by one motor. The gearing between discs was a very close approximation to the 12th root of two ratio. This tuner had an electrically-driven temperature-compensated tuning fork; the electrical output of this fork was amplified to run the motor. The fork had sliding weights, an adjustment knob, and a dial to show the position of the weights. These weights permitted setting it to different reference frequencies (such as A4 = 435 Hz), although over a relatively narrow range, perhaps a whole tone. When set at A4 = 440 Hz the tuning fork produced a 55 Hz signal, which drove the four-pole 1650 RPM synchronous motor to which the A disc was mounted. (The other discs were all gear-driven off of this one.) Incoming audio was amplified to feed a long neon tube common to all 12 discs. Wind instrument repair people liked this tuner because it needed no adjustment to show different notes. Anyone who had to move this tuner around was less inclined to like it because of its size and weight: two record-player-sized cases of 30-40 pounds each.

The best known brand in strobe tuner technology is Peterson Tuners who in 1968 marketed their first strobe tuner, the "Model 400". Other companies, such as Sonic Research and Planet Waves, sell affordable LED-based true strobing tuners. There are other tuners with LEDs that have a 'strobe mode' which simulates the appearance of a strobe. However, the accuracy of these tuners when used in strobe mode is no better than when in any other mode, as it uses the same technique as a needle tuner to measure the frequency of the note, and then it sets the speed of the pattern in the LEDs instead of driving a needle.

The display readout of a mechanical strobe tuner. Each of the eight bands are read for partials within a note. The lowest darkest image represents the fundamental The fundamental tone, often referred to simply as the fundamental and abbreviated f0 or F0, is the lowest frequency in a harmonic series, fainter bands higher on the display represent overtones, or partials. Perceived clockwise movement indicates sharp, counter-clockwise flat.

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D.Green's TUES JAM: We've bn asked sensible Q's.
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D.Green's TUES JAM: We've bn asked sensible Q's.

vanleer

ue, 01 Sep 2009 15:56:00 GM

amplified - We try to keep a Chromatic . Electronic Tuner. on hand, but PLEASE try, stringed instr. players, to bring y'r own . Electronic Tuner. , picks (if you use 'em) and one shielded cord. Thank you for reading all this. ...

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Fri Sep 3 07:54:52 2010