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Shrillness is a factor upon which a frequency is determined. It is a type of frequency along with pitch.
Hoarseness is also known as voice strain, dysphonia, and loss of voice. Most cases of hoarseness are associated with inflammation of the larynx. Vocal cord vibration allows creation of sounds which are then articulated by the lips, tongue, and palate. When something causes the surface of the vocal cords to become thickened or swollen, the vocal cords can no longer vibrate freely and hoarseness will develop. It is important to seek care from an otolaryngologist if the hoarseness lingers for weeks or months. The symptoms may be caused by a variety of problems. Some causes are minor, while others are more serious. Causes. Common contributors to hoarseness can include: Vocal cord polyps or nodules; Vocal cord paralysis