The Frequency Question: What Sound Can Change, What It Cannot, and How to Hear Through the Hype

By Michelle Hoffmann

Can a frequency improve your sleep, change your mood, or heal your body? What about the tracks that promise wealth, transformation, or a higher "vibration"? The numbers sound precise, but the promises often leave out the most important question: what has actually been shown to happen?

In The Frequency Question, Michelle Hoffmann follows sound from vibrating objects through speakers, ears, and the brain. She explores music, binaural beats, medical ultrasound, cymatics, tinnitus, and the power of expectation in language that makes the science approachable. Along the way, she examines why a real benefit from listening does not necessarily prove that a marketed frequency caused it.

This book is for curious listeners who love sound and want clear answers about what it can do. You'll learn which details matter when evaluating a claim, why volume and duration can matter more than a supposedly perfect pitch, and how to recognize a promise that outruns the evidence. Sound is remarkable enough without asking one number to explain everything.

• Format: Paperback
• Language: English
• ISBN: B0HKJWX3LH
• ISBN13: 9798176085914
• Release Date: September 2026
• Publisher: Independently Published
• Length: 112 Pages
• Weight: 0.32 lbs.
• Dimensions: 0.3" x 6.0" x 9.0"