How does mass affect vocal fold vibration?

The correct understanding of how mass affects vocal fold vibration is that increased mass leads to decreased vibration. When the mass of the vocal folds increases, their ability to vibrate freely decreases. This is primarily because heavier vocal folds require more force to initiate movement, making it more difficult for them to oscillate rapidly. Additionally, increased mass can lower the pitch of the sound produced, as heavier folds tend to vibrate at lower frequencies, which translates into a lower pitch perceived by listeners.

The basic principles of physics regarding vibrating bodies reflect that mass plays a crucial role in the frequency of vibration. As mass increases, there is a shift in the balance of tension and mass, resulting in slower vibrations. This is particularly relevant in the context of voice production, where the characteristics of the vocal folds directly influence the quality of the sound produced. Thus, heavier vocal folds are limited in their ability to return to their original position after being displaced, thereby reducing the frequency of vibration.