What challenge is commonly faced with physiological measures of speech?

The challenge commonly faced with physiological measures of speech relates to the high equipment cost and complexity. Physiological measures, such as electromyography (EMG), electroglottography (EGG), or aerodynamic assessments, often require specialized equipment and technology that can be expensive to acquire and maintain. Additionally, the setup and calibration of this equipment can be intricate, necessitating trained professionals to operate it effectively.

The complexity involved includes not only the technology itself but also the need for precise positioning of sensors and control of external variables to ensure valid and reliable measurements. This can be particularly challenging in research or clinical settings where time and resources may be limited. Therefore, the high cost and operational intricacies associated with physiological measures are significant barriers that practitioners and researchers must navigate in their work.