Which prosodic feature increases due to a rise in subglottal pressure?

The correct answer is that loudness increases due to a rise in subglottal pressure. Subglottal pressure refers to the air pressure that is generated below the vocal folds, and it plays a critical role in vocal production. When subglottal pressure increases, the force with which the air pushes through the vocal folds becomes greater. This results in a louder voice because the increased airflow causes the vocal folds to vibrate with more force, enhancing the intensity of the sound produced.

In the context of speech, loudness is perceived as the strength or intensity of the sound, and it is closely tied to changes in subglottal pressure. This understanding is fundamental in speech science, as it explains how physical properties of phonation are linked to acoustic output.

Other prosodic features, such as pitch, duration, and articulation, are influenced by different mechanisms. For instance, pitch is primarily determined by the frequency of vocal fold vibration, which is more directly affected by tension and mass of the vocal folds rather than subglottal pressure alone. Duration relates to the length of time a sound is produced but is not directly tied to subglottal pressure changes. Articulation involves the movement of speech organs and does not have a