- **Epistemic status:** #seedlings The key [[Voice Feminization]] variables are divided in 2 categories: ## Sound Production (glottal behavior) - [[Vocal Pitch]] - Less Important - Spectral Tilt (fold thickness) - Most Important ## Sound Modification (resonance behavior) - R1 (pharynx geometry) - Most Important - R2 (oral geometry) - Less Important The [[Vocal Pitch]] we sing at or speak is independent of the “throat pitch”. They both occur {simultaneously, which is what forms the vocal timbre. The frequency ratio between [[Vocal Pitch]] and R1 heavily determines whether you sound male or female. Wider ratios are perceived as more feminine. Narrower ratios are perceived as more masculine. --- ## References - TransVoiceLessons. _The Big Picture of Voice Feminization | A Comprehensive Overview | Lecture & Demonstration_, 2020. <https://www.youtube.com/watch?v=gZWQ7MICbDY>.