Here's why:
* Quotation marks are for direct speech. They indicate someone is speaking or quoting something exactly.
* Sounds are usually described, not quoted. You would use descriptive words to convey what a sound is like.
Examples:
Incorrect: "The bird sang a "tweet tweet" song."
Correct: The bird sang a sweet, high-pitched song.
Incorrect: "The car made a "vroom vroom" noise."
Correct: The car engine roared to life.
When you might use quotation marks for sound:
* Onomatopoeia: Sometimes, when the sound is particularly evocative, you might use quotation marks for emphasis.
* "The train went 'whoosh' past the station."
* When representing actual speech: If a character is mimicking a sound, you might use quotation marks to indicate that:
* "The dog went 'woof woof' and wagged its tail."
In general, use your judgment and focus on using vivid and descriptive language to paint a picture of the sound in your reader's mind.