Here's a breakdown of the key elements:
* Airflow: The air from the lungs passes through the vocal cords, which vibrate to create sound.
* Tongue Position: The position of the tongue in the mouth determines the overall shape of the vocal tract, influencing the resonance.
* Lip Shape: The shape of the lips also affects the resonance of the sound.
* No Obstruction: Unlike consonants, vowels are produced without any obstruction in the mouth, allowing for the free flow of air.
Here's how different tongue and lip positions create different vowel sounds:
* Height: The tongue can be high or low in the mouth.
* Front/Back: The tongue can be positioned at the front or back of the mouth.
* Rounded/Unrounded: The lips can be rounded or spread.
For example:
* High front unrounded vowel (i): The tongue is high and forward, and the lips are spread.
* Low back rounded vowel (u): The tongue is low and back, and the lips are rounded.
Key Points:
* The specific positions of the tongue and lips create different vowel sounds.
* The shape of the vocal tract affects the resonance of the sound, resulting in different vowel qualities.
* Vowel production is a complex process, but understanding the basic principles of tongue and lip position can help you understand how vowel sounds are formed.
Remember, vowel sounds are constantly changing depending on the context of the surrounding sounds. This is why phonetic transcription is so important in accurately representing vowel sounds.