If my voice is hoarse, when should I see my doctor? For example, relaxing the vocal folds makes a voice deeper tensing them makes a voice higher. Individual variations in our voices are the result of how much tension we put on our vocal folds. This is why people's voices sound so different. The quality of our voice-its pitch, volume, and tone-is determined by the size and shape of the vocal folds and the resonating cavities. The vibrations produce sound waves that travel through the throat, nose, and mouth, which act as resonating cavities to modulate the sound. The vocal folds snap together while air from the lungs blows past, making them vibrate.
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When it's time to speak, however, the brain orchestrates a series of events. When we're not speaking, the vocal folds are open so that we can breathe. The larynx is located between the base of the tongue and the top of the trachea, which is the passageway to the lungs (see figure). The sound of our voice is produced by vibration of the vocal folds, which are two bands of smooth muscle tissue that are positioned opposite each other in the larynx. Hoarseness is often a symptom of problems in the vocal folds of the larynx. If you are hoarse, your voice will sound breathy, raspy, or strained, or will be softer in volume or lower in pitch. Structures involved in speech and voice production Congressional Testimony and the NIDCD Budget.Institutional Research Training Programs.Types of Research Training Funding Opportunities.About NIDCD's Research Training Program.Scientific Workshop and Meeting Reports.
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