Two magnetic methods for articulatory measurements.

Area of Science:

• Biomedical Engineering
• Speech Science
• Sensor Technology

Background:

• Accurate measurement of articulatory movements is crucial for understanding speech production.
• Existing methods for tracking articulatory dynamics can be invasive or lack precision.
• Uniform magnetic fields offer a novel approach to contactless motion sensing.

Purpose of the Study:

• To introduce two novel magnetic methods for quantifying articulatory activities during speech.
• To demonstrate the capability of these methods in measuring jaw and tongue movements.
• To highlight the biological safety and minimal disturbance of the proposed techniques.

Main Methods:

• Utilizing three alternating magnetic fields to induce voltages in specialized detectors.
• Employing a magnetic potentiometer and a flat coil as sensors for capturing magnetic field variations.
• Developing miniaturized detectors to ensure non-interference with natural speech articulation.

Main Results:

• Successfully measured jaw and tongue movements during speech production using the developed magnetic methods.
• Demonstrated the biological safety of the magnetic sensing approach.
• Preliminary results indicate the potential for high-fidelity articulatory tracking.

Conclusions:

• The presented magnetic methods provide a safe and effective means for measuring articulatory movements.
• These techniques offer a significant advancement over previous methods for speech analysis.
• The vectorial distance measurement capabilities extend potential applications beyond speech science.