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The Ekdahl FAR should come calibrated to a standard set of parameters but even so, due to its acoustic nature, minor periodic maintenance is required. Most notably the instrument will have to be regularly fine tuned in order for the bowing of specific overtones to sound good, an out of tune instrument will not resonate. | The Ekdahl FAR should come calibrated to a standard set of parameters but even so, due to its acoustic nature, minor periodic maintenance is required. Most notably the instrument will have to be regularly fine tuned in order for the bowing of specific overtones to sound good, an out of tune instrument will not resonate. | ||
The main ways of creating sound is by using the [[The Ekdahl FAR - Getting started#bowing wheel|bowing wheel]] to precisely bow the string with a given speed, the speed of the [[The Ekdahl FAR - Getting started#bowing wheel|bowing wheel]] determines which - if any - naturally occurring overtone(s) in the string is being emphasized. The [[The Ekdahl FAR - Getting started#pressure|pressure]] with which the bowing wheel is pressed up against the string will affect both loudness and harmonic content. One can also use the hammer to strike the string with a given force, the amount of force will affect both loudness and harmonic content. These modes can either be used separately or together. | The main ways of creating sound is by using the [[The Ekdahl FAR - Getting started#bowing wheel|bowing wheel]] to precisely bow the string with a given speed, the speed of the [[The Ekdahl FAR - Getting started#bowing wheel|bowing wheel]] determines which - if any - naturally occurring overtone(s) in the string is being emphasized. The [[The Ekdahl FAR - Getting started#pressure|pressure]] with which the bowing wheel is pressed up against the string will affect both loudness and harmonic content. One can also use the [[The Ekdahl FAR - Hammer|hammer]] to strike the string with a given force, the amount of force will affect both loudness and harmonic content. These modes can either be used separately or together. | ||
There is also a mute that can be | There is also a [[The Ekdahl FAR - Mute|mute]] that can be completely disengage from the string, used to do partial muting to suppress or exaggerate certain overtones, or to do full muting of the string. | ||
The overtone(s) to be emphasized are selected by [[The Ekdahl FAR - Getting started#harmonic number|harmonic number]]<nowiki/>s where [[The Ekdahl FAR - Getting started#harmonic number|harmonic number]] ''0'' is the ''fundamental frequency'' of the string and all overtones are being calculated from this fundamental using the selected [[The Ekdahl FAR - Getting started#harmonic table|harmonic table]]. The default [[The Ekdahl FAR - Getting started#harmonic table|harmonic table]] is using just intonation in a 12-tone scale, thus harmonic 12 will be one octave above the fundamental, harmonic -12 will be on octave below etc. The effective range available depends on the string tuning and the physical maximum and minimum speed of the bowing motor, generally a 3 to 4 octave range can be reached.[[File:Bowing jack.png|alt=The Ekdahl FAR bowing assembly, marks the bowing jack and the bowing wheel|thumb|The Ekdahl FAR bowing assembly]] | |||
== Terminology == | == Terminology == | ||
* <span id="bowing_wheel">''Bowing wheel''</span> - the wheel attached to the bowing motor, which is actually rubbing against the string | * <span id="bowing_wheel">''Bowing wheel''</span> - the wheel attached to the bowing motor, which is actually rubbing against the string | ||
* <span id="bowing_jack">''Bowing jack''</span> - the assembly that holds the bowing motor and [[The Ekdahl FAR - Getting started#bowing wheel|bowing wheel]], this can be tilted up and down applying different [[The Ekdahl FAR - Getting started#pressure|pressure]] of the [[The Ekdahl FAR - Getting started#bowing wheel|bowing wheel]] against the string | * <span id="bowing_jack">''Bowing jack''</span> - the assembly that holds the bowing motor and [[The Ekdahl FAR - Getting started#bowing wheel|bowing wheel]], this can be tilted up and down applying different [[The Ekdahl FAR - Getting started#pressure|pressure]] of the [[The Ekdahl FAR - Getting started#bowing wheel|bowing wheel]] against the string | ||