while this is an excellent example of intonation on electric guitars,The acoustic guitar players have a bit more detailed avenues for correct intonation.Maybe ,detalied is the wrong word.lol.Theres a few different steps to achieve intonation on acoustic guitars .But, it all starts with a tuned guitar ,and at the 12th fret, but from there it gets a bit more tricky. For example, if you play the twelfth fret, the resulting note should be exactly an octave higher than the open string. Because there are not individual string saddles on an acoustic, setting intonation on guitar is only possible for electrics. Double that measurement to find the scale length of your guitar. Intonation refers to the accuracy of the pitches produced by fretting. Faulty Guitar Strings. What Causes Poor Guitar Intonation? The exercises in this video lesson show you how to adjust for sharp or flat frets the tips ensure your adjustment is … If the intonation is off, the guitar will play in tune in the lower note registers but will be out of tune in the higher note registers. If the open string is in tune, and the 12th fret of that string is out of tune, its time for an electric guitar intonation adjustment. Tune each string as accurately as possible using a precise guitar tuner. As the intonation is what determines the guitar being in-tune throughout the whole fretboard. Manufacturers set up your guitar in a very specific way, and any flaw in the setup, however tiny, can have a massive impact on how your guitar sounds. Another thing that is very common with the guitar is that it will be in-tune at the first few frets when playing basic chords, but when these chords are played further up the neck, they sound out of tune. Check out my Ultimate Guide to Guitar Tuners for advice on the best guitar tuners available. Adjusting the action and intonation on your electric guitar affects your instruments sound. Intonation is all about how in-tune your guitar is with itself, so it is important to first tune up your guitar strings. A guitar that is properly intonated requires that the string's vibrating distance between the nut, 12th fret and the bridge saddle be equal. 1. You can also use the saddles to adjust the intonation of your guitar. You can preset the basic intonation of your guitar by taking a tape measure and measuring from the inside of the nut to the center of the 12th fret (the fret wire itself; not the fingerboard). Here are some common causes of poor intonation. How to Fix Your Electric Guitar's Intonation Now, to fix your guitar's intonation there will be one of two things you'll need to do: Adjust the string because the 12th fret note is too sharp (tuner needle is on the right side of perfect pitch), or Adjust the string because the 12th fret note is too flat (tuner needle is on the left side of perfect pitch). This is created by the length of each string from the nut to the bridge. Not all guitar strings are created equal, and maybe you’ve bought a bad set. How to Fix Intonation on Electric Guitar. Set Your Intonation.