Sadao Hiroya

Senior Research Scientist
Ph.D.

Speech, auditory feedback, and sensorimotor control

Sensory and Motor Research Group,
Human Information Science Laboratory,
Communication Science Laboratories, NTT, Inc.

Research Overview

I study the neural and sensorimotor mechanisms underlying speech production and perception, with a particular focus on auditory feedback.

My research integrates cognitive neuroscience, speech science, and signal processing to understand how humans monitor and control speech in real time. I am also interested in what makes speech unique as a sensorimotor system, and investigate this question through comparisons with musical performance such as violin playing.

This work spans both fundamental science and applied technologies, including real-time speech transformation, auditory feedback manipulation, and training methods for speech and pronunciation.

Research Interests

• Speech production and perception
• Auditory feedback and sensorimotor control
• Cognitive neuroscience of speech and music
• Speech and auditory signal processing

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