There is no reason why it should be round, simply a matter of tradition. Also, a round opening suites the curves of the body of the guitar is better than any other shape.
If by "bottom hole" you mean the round hole at the end, then no. Most of the sound of a flute comes out near where the mouthpiece is
The hollow body of an acoustic guitar amplifies the sound, and the sound then comes out of the hole and also resonates through the guitar wood. That's why the quality of the wood in the guitar is important. Electric guitars don't have a hole or a hollow body, because they are amplified by electricity.
I believe you've asked this because you've probably seen a picture of an acoustic guitar, which uses vibrations to create it's trademark sound. When you strum a string on an acoustic guitar, the sound bounces back into the inside of the guitar (by going through the 'hole'), and bounces back out to increase sound. This is similar to when you shout into a cave. But no, guitars can be made without the acoustic hole. For example, an electric guitar needs no hole, because it uses an amplifier to create sound; same with bass guitars. you are so dumb.
Yes, electric guitars can be made to sound like acoustic guitars by using effects pedals or software to simulate the sound of an acoustic guitar.
Guitars produce sound through the vibration of the strings, which creates sound waves that travel through the air. When a guitarist plucks or strums the strings, they vibrate back and forth, causing changes in air pressure that our ears perceive as sound. The sound is amplified by the guitar's body and resonates through the sound hole, creating the familiar tones we hear.
The string makes the sound by transferring it's vibration to the top of the guitar. The top vibrates, and that is amplified by the body of the guitar. The round hole is to let that sound escape.
I Love the Sound of Crashing Guitars was created in 1994.
Electric guitars produce sound through electronic amplification, resulting in a louder and more distorted tone compared to the natural, unamplified sound of acoustic guitars. The use of pickups and effects on electric guitars also contribute to their unique sound, which can be manipulated and customized to create a wide range of tones.
to make a better sound than acoustic guitars
Guitars come in various sizes, such as small parlor guitars and large dreadnought guitars. The size of a guitar can affect its sound and playability. Larger guitars tend to have a louder and fuller sound, while smaller guitars may be easier to handle and play for some people. The size of a guitar can also impact its resonance and tone quality.
When you strum or pluck a string, the vibration from the string vibrates the air around it causing a sound to be made. The hole behind the strings is there so when the noise travels and hits off the back of it, it will make an echo.
Guitars have tuning keys because they need to have a certain sound to make them sound good. Basicaly they need to be in tune.