Welcome
INNER SOUND is not about listening to sound or music. It’s about listening to yourself.
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A Path Inward: Shift your focus from external sound to your body’s unique internal resonance.
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Deconstruct Tension: Allow precision-tuned frequencies to gently unravel deep-seated physical and emotional blocks.
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Awaken Self-Healing: Create a quiet, neutral space where your system can naturally align, regenerate, and restore balance from within.
Precision-Crafted Sound Therapy Since 1998
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INNER SOUND tuning forks are designed to be used in pairs at the head to facilitate deep, rapid relaxation for both humans and animals.
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Premium Quality: US-manufactured from high-grade aluminum alloy.
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Certified Trust: FDA-certified Type 1 medical devices, available in large and small sets.
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Deep Resonance: Creates a balanced movement of expansion and contraction that calms the nervous system, allowing the body and energy fields to naturally regenerate and align.
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Master the Art of Sound Therapy
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Our Basic & Advanced Training provides the essential knowledge and practical skills needed to maximize the therapeutic potential of INNER SOUND tuning forks.
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Professional & Personal Growth: Learn to seamlessly integrate tuning forks into relaxation practices, complementary therapies, or your daily personal wellness routine.
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Research-Backed Foundations: All frequencies and fork numbers are meticulously based on pioneering research by Jack Wilken.
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Expert-Led Curriculum: Course content is exclusively developed by Arden Wilken, co-founder of INNER SOUND, bringing decades of clinical and practical experience directly to you.
Short demo of INNER SOUND Tuning Fork Session with Set of 13 showing practitioner holding 2 tuning forks, activating them and bringing the pair up to the ears and then away.
Register for our Tuning Fork Classes
2026 BASIC: Oct 17 & 18 / ADV: Oct 24 & 25. 9am-1pm each day PST via Zoom/Instructor Arden Wilken
Starts Oct 17
335 US dollarsLoading availability...
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2026 BASIC: Oct 17 & 18 ADV: Oct 24 & 25. 9am - 1pm each day PST via Zoom/Instructor Arden Wilken
Starts Oct 17
265 US dollarsLoading availability...
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2026 BASIC: Oct 17 & 18. 9am - 1pm each day PST via Zoom/Instructor Arden Wilken
Starts Oct 17
175 US dollarsLoading availability...
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2026 Advanced: Oct 24 & 25. 9 am - 1 pm each day PST via Zoom/Instructor Arden Wilken
Starts Oct 24
175 US dollarsLoading availability...
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Purchase Tuning Forks
Prices are + shipping
We ship anywhere in the US, including Alaska & Hawaii, and overseas.
For international orders, please contact us at arden@innersoundonline.com or
WhatsApp 1 (206) 618-3985 for a shipping quote.
(Sets come with a pouch, wooden hammer and rubber activator as shown)
Frequently asked questions
Set of 13
Mini-Instructions manuals
Pair 5
Personal/
OM Tuners
OM Set of 14
Care & Maintenance of Tuning Forks
• Store in a dry location without touching (in pouch) / avoid dropping
• Activate on rubber, or with wooden hammer for group work, not on body
• Use at room temperature (68 degrees F/20 degrees C ) /
tuning forks should feel slightly cool to the touch when you use them
• Use 220 grit sandpaper for any discoloration (oxidation) spots They do not affect the effect of the tuning forks, being cosmetic discoloration only
Tuning Forks will last a lifetime if well-maintained
How to activate
INNER SOUND Tuning Forks
Relaxed thumbs and upright posture are the key.
How to apply
INNER SOUND Tuning forks
Studies
From Practitioner Submissions
Since 2002 in an on-going study, INNER SOUND tuning forks use has shown a significant statistical difference in client-assessed pain and stress levels before and after a session. The assessments were in the positive direction, less pain and stress after the session.
Brain Tracings
This file shows a deeper level of Alpha brainwaves being created during a 15 minute Set of 13 tuning fork session vs 15 minutes of sitting with eyes closed.
More Tuning Fork Practitioner Feedback
"I had the opportunity to use Pair 5, 7, 9, 11, 12, 9 & 5 (Set of 13) for a group of rescue rabbits that have been ill and stressed due to a recent loss of another rabbit. It was amazing. They all came out of their boxes and laid down & stretched out. The one I had worked on before the group session, the most ill, was in the middle pen, & every time I walked back and forth he would stand up like a dog begging, to try and get closer to the sound. It was awesome!"
Purity = rapid, deep relaxation
INNER SOUND tuning forks are tuned twice for unparalleled precision. When utilized in pairs, this accuracy facilitates profound and swift relaxation. The 1.5 to 1 ratio between the higher and lower fork of each pair, known as the 5th, encourages the brain to transition into a self-healing state characterized by Alpha brainwaves.
Our tuning forks offer a level of precision that other forks don't match. Take a look at the visual difference between the two oscilloscope waveforms: the top showcases pure 5ths, while the bottom reveals less clarity. Experience the tranquility that comes from our tuning forks.
