Episode 004
The Science of Voice & Safety: How to Speak with Natural Authority
Hosted by Jeremy de Tolly, featuring Mattie Shisko
About this Episode
Why does your voice shut down when it matters most?
The answer isn’t confidence - it’s a whole-system issue, starting in your nervous system.
In this episode, voice coach and actor Mattie Shisko explores the powerful link between the nervous system and authentic expression.
We dive into vocal liberation, practical tools to regulate your body and voice, and why safety (not confidence) is the foundation of being heard. Mattie also shares insights from working with politicians and leaders under pressure, revealing what it really takes to sound grounded, clear, and human when it matters most.
Expect practical exercises, fresh perspectives on vocal confidence, and a deeper understanding of how your voice impacts both you and those around you.
You will learn:
● Why your voice is shaped by your nervous system—not just confidence or skill.
● What “voice liberation” really means (and how small, gentle shifts can create big change).
● How safety in the body influences your ability to speak, be heard, and feel authentic.
● Practical tools to regulate your voice, including humming, vocal play, and simple warm-ups.
● Lessons from coaching politicians and leaders in high-pressure environments.
● How vocal tone impacts other people’s nervous systems and creates connection (or disconnection).
● The role of play, curiosity, and creativity in unlocking your natural voice.
● Why vocal range and nervous system flexibility are key to presence and resilience.
● How to begin speaking with more ease, authenticity, and grounded authority.
Listen or watch this episode on your favourite platform!
Resources & next steps
If you’d like to explore this work further:
Free Resources and Guides
Practical, expert-created tools to help you reclaim your voice, reduce anxiety, and elevate your presence.
EFT for Speaking Anxiety PDF
A practical, body-based approach to calming the nervous system and speaking with more ease.
Private coaching with Jeremy
Personalised support to help you move through vocal anxiety and speak with clarity and confidence.
Support this work:
The Radiant Foundation
Providing free trauma tools and support to underprivileged communities in South Africa
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