Coaching the Gendered Voice, Part II: Acoustic Analysis of Pitch and Resonance in Cross-Gender Performance Training

This article builds on an action research study investigating effective techniques for coaching actors in cross-gender vocal modification, specifically focusing on the acoustic features of pitch and resonance. Expanding on previous exploratory work, this study delves into quantitative acoustic analyses to understand how specific vocal adjustments impact acoustic features associated with vocal gender. Using data from three student actors, we analyzed fundamental frequency (f0) and formant spacing (ΔF) under different coaching conditions (“none,” “oral posture,” “pitch,” and “toolkit”). The results reveal clear directional shifts in line with the actors’ intended gendered goals and represent meaningful acoustic movements that align with qualitative reports of successful transformation, even where traditional statistical thresholds were not met. The findings suggest that while pitch modification is often the most consistent and impactful tool, resonance adjustments provide essential individualized support, underscoring the interconnected nature of the vocal mechanism. This study argues for the recognition of pedagogical significance alongside statistical measures and reinforces the value of a flexible “toolkit” approach for achieving natural, expressive, and sustainable vocal transformations in cross-gender performance.