Fret Buzz: Causes & How To Fix Guitar Fret Buzz?

fret buzz
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Trembling is the phenomenon of your guitar making annoying noises when the strings don’t have enough room to oscillate, the guitar line is interrupted by one or more frets. This is an extremely frustrating problem, especially for new guitar players. Learning about the causes of strings and the effects on your guitar helps you have a basic understanding so that you can proactively fix guitar fret buzz.

Usually, it’s fairly easy to determine which strings and where on the neck are causing the squeaking. Does the piano hum in many compartments, or is it only in the active compartment? The pitch is too high compared to normal, making you wonder? Here are some common reasons why your guitar sounds cracked that you should be aware of.

Frets are not level with each other

Uneven fretboard pitch is a typical culprit of string distortion. Over time, the keys gradually wear down, but this is not uniform across the fretboard, meaning there are some higher frets and some lower frets.

guitar fret buzz

For example, if you play the piano, prevent 5 from sounding clear, stop 4 from being timid, and prevent three from playing inside. When you play the 3rd fret, the string doesn’t touch the 4th fret or the others, but when you press the 4th fret, the string hits the 5th or 6th fret because the fret on the 4th fret is too low.

Let’s say your guitar is in the same situation. You need to do a thorough inspection to determine which keys are too high or too low and perform balancing or replacing worn keys. Testing can use guitar-specific testing tools such as a fret rocker or a straightedge.

Therefore, unless you have experience repairing guitars, we recommend that our customers have their guitar serviced at a specialized shop or by a highly skilled technician as this requires a professional technician.

Related: How Many Frets on a Guitar? Best Things You Need To Know

String action is too low

Action is the distance between the underside of the string and the top of the fret. This distance should be large enough for the strings to vibrate freely but not too large, or it would make it difficult to press and hold the strings.

Customers will often favor low-action guitars, which make playing much easier and more comfortable. However, the action is too low. It is easy for the strings to touch the keys, causing annoying squeaks.

Each different type of guitar will have different action standards. If you want to check the standard height of the action, you just need to check at the top and bottom frets. Usually, the treble (GBE) string action is about 0.4mm for acoustic and electric guitars, and the bass (EAD) string is about 0.8mm. This stat will be slightly higher in classical guitars.

The action gauge (String Action Gauge) is a useful tool that makes measuring work precise and easy. We can loosen the strings a little to reduce tension and adjust the comb and bridge to suit your own playing style and preferences.

Neck does not have enough “relief”

The process of stretching the strings will cause the neck to bend slightly, which is collectively known as “Neck Relief”. All guitars require a small amount of sag around the 8th fret, and it is this bow shape that will provide the necessary space for the strings to swing without a hitch.

There are three common types of neck bends: up-bow, back-bow, and twisted necks. If you have a case of a guitar that hums in many adjacent compartments, it is because the neck is warped too much. The main reason is that there is almost no gap between the fretboard and the strings, or there are gaps between the frets and the strings that are very small.

The solution to fret buzz is measuring the deflection and adjusting the Truss Rod. The tuning fork is a hexagonal steel bar placed between the neck and the fretboard, which adjusts the neck’s deflection and increases the rigidity of the guitar, preventing the neck from being affected by too much rope tensioner. Loosening the lever reduces the force applied to the neck, allowing you to create an appropriate deflection depending on the guitar’s condition.

However, fretboard tuning is usually only available on acoustic, electric, and semi-classical guitars. Therefore, if you own a classical guitar that shows signs of neck bending, take it to a specialized store to be supported as quickly as possible.


“Why is my guitar buzzing?” or “why does my guitar buzz?” are the questions that you often ask when your guitar has problems about the sound. However, the sound of guitar strings can happen for many reasons. Here are the three most common reasons that your guitar often encounters. In addition, the rattling sound can also be caused by other factors such as humidity, resonance with other devices or even a malfunctioning instrument’s hardware. You should double-check the parts of the guitar before taking it in for repair, regularly clean the belly and neck, and move your guitar gently.

Contact a reputable technician for advice and support if you are still worried about fret buzz or your guitar has any other problems that you cannot solve.

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