123. Speaking with Purpose: The Science and Psychology Behind Your Voice with Belinda McMahon

Full of Words

In this episode of the Full of Words podcast, Sue and CJ welcome vocal communication coach and voice science specialist, Belinda McMahon. With a background that spans professional singing, academic research, and corporate coaching, Belinda brings deep insight into how our voice reflects not just our physical makeup—but also our personal experiences, beliefs, and identity.

Together, they explore the fascinating concept of vocal identity: how early experiences shape the way we speak, and how this influences our confidence and presence in professional and personal settings. Belinda breaks down her three-part model—vocal identity, vocal technique, and vocal influence—and explains how mastering each layer can help you communicate with greater clarity, authority, and connection.

From the neuroscience of breathing to practical techniques for using pauses, pitch, and tone effectively, this episode offers valuable strategies for anyone who speaks in meetings, presents to clients, records videos—or just wants to feel more confident expressing themselves.Listen now!

Download Belinda’s free vocal guide at voiceprintprofessionals.com and start implementing practical techniques today.
Highlights:

• (01:41) – Belinda’s career path from singer and educator to vocal identity researcher and coach.
• (03:38) – Understanding how our voice develops through emotional experiences and belief systems.
• (08:55) – The “I can’t run” analogy: how early feedback can limit our self-perception as communicators.
• (12:39) – Coaching clients to expand their vocal range while staying true to their authentic style.
• (17:02) – Belinda’s Model of Vocal Identity and Influence—a framework for intentional voice use.
• (20:30) – Matching tone and energy in conversations to build rapport and navigate emotional dynamics.
• (24:00) – The science behind vocal tone, alarms, and how our nervous system responds to sound.
• (26:18) – Common voice habits that undermine authority, including vocal fry and rushed speech.
• (31:27) – The importance of pauses: improving clarity, confidence, and audience engagement.
• (35:07) – Why effective breathing is the foundation of a strong, resonant voice.

Sue Kennedy Links:

Website:authoracademy.com.au

LinkedIn:Sue Kennedy Book Coaching Expert

Facebook:
http://facebook.com/TheNo1AuthorAcademy
https://www.facebook.com/groups/authoracademycollective

Twitter: thauthoracademy

Email:[email protected]

Booking Link: https://suekennedy.as.me/complimentarysession

Catherine James Links:

Website:catherinejames.au

LinkedIn:Catherine (CJ) James

Facebook:
Catherine James Creative
https://www.facebook.com/groups/doinitdaily/

Instagram:@catherinejamescreative

Email: [email protected]

Booking Link: https://catherinejames.au/contact