VITAL TONES RESEARCH

 

Stuttering Evaluation

 

Deep Brain Sound Stimulation (DBSS) — full 18-minute evaluation session

 

​Private research evaluation only.Please do not share this link or audio publicly. No purchase required.

 

Purpose

 

This auditory stimulation session was developed by Vital Tones for evaluation in persistent childhood-onset developmental stuttering.

 

Researchers and clinicians are invited to make their own observations regarding any immediate, progressive, or persistent changes in speech.

 

No endorsement is requested. The purpose is independent evaluation and observation.

 

 

Before listening

 

For a simple before-and-after comparison, speak or read for approximately 100 seconds before listening and count the number of clear stuttering events (such as blocks, repetitions, or prolongations).

 

Repeat the same speaking task after the session and compare the counts.

 

If possible, use the same text and speaking conditions each time.

 

 

Listening instructions

 

• Use stereo headphones.
• Make sure the left and right channels are worn correctly!
• Sit or lie down in a quiet, comfortable environment.
• Keep the volume at a comfortable listening level. Do not use high volume.
• Listen normally and remain relaxed.
• Do not consciously try to alter or force your speech while listening.

 

 

​Full Stuttering Evaluation SessionDuration: approximately 18 minutes ​

0:00 / 18:00

 

 

After listening

 

Speak normally after the session and observe whether you notice any difference compared with your usual speech.

 

Areas that may be useful to observe include:

 

• frequency of blocks or repetitions
• duration or intensity of blocks
• speech initiation
• speech continuity and fluency
• effort required to speak
• speech rate
• secondary physical tension or associated movements
• subjective ease of speaking

 

If you recorded speech before listening, repeat approximately the same speaking task afterward for comparison.

 

 

Evaluation period

 

For a meaningful evaluation, please listen once daily for at least 7 consecutive days without gaps. Continuous daily use appears important because the brain may need repeated stimulation to adapt to and stabilize a new speech pattern.

 

• If there is no noticeable effect after 7 consecutive days, you may stop.
• If there is a positive effect, continue once daily until completing the full 14 consecutive days.
• If you notice a clear change at any point, please let us know.

 

If there is little or no effect, some important individual components may still be missing from the current session. We are continuing to identify and test these parts.

 

A new updated full session is planned for late November 2026, incorporating additional positive components found during testing and further development of the female stuttering protocol.

 

After completing the 14 days, stop listening and observe whether the improvement remains stable, decreases, or changes without further stimulation.

 

​Suggested observation points For a simple comparison, observations may be made at:Baseline → Day 1 → Day 3 → Day 7 → Day 14 → after discontinuationAdditional observations several days after the final session may help determine whether any change persists without further stimulation.

 

 

Contact

 

Ugur Dogan

Vital Tones

[email protected]

 

 

 

Scientific evaluation material —

Vital Tones © 2026

 

Provided for research discussion and observation; not presented as established clinical evidence of efficacy.

 

Protocol archive: Zenodo DOI: 10.5281/zenodo.22708300

Detailed protocol parameters are retained as proprietary research material.