Takemi Mochida, PhD


has worked in the field of speech science. His research concerns are sensory-motor and cognitive processes underlying human speech, physiological basis of speech production system, physical and psychological acoustics related to speech and hearing, audio signal processing technologies, etc.

He has always been captivated by playing and listening to all forms of music ever since he was a kid. See his hobby. Among all the musical experiences, he has had a particular interest in playing trumpet. Especially what attracted him most in his early years was the dazzling sounds of brass ensemble. He still has not quite figured out why, but the rich sounds of brass instruments always make him feel all warm and fuzzy. It would be fun to assess the neurological basis of the hypnotic effect of those sounds on his mind someday.

Along with enjoying playing brass instruments in school, he also held a huge interest in mucking around with an analog synthesizer which his brother owned. He intuitively understood how it emulates the acoustic properties of brass instruments with electronic circuits. See the brief intro. As he could not stop his enthusiasm to look into the workings of acoustic and electronic music instruments,  he started his research career when he was a university student. He mastered signal processing technologies for synthesizing speech sounds by computer.

Since he was involved in research professionally at NTT Basic Research Laboratories, he has investigated the articulatory and acoustic dynamics of human speech. In recent years, he has also explored the psychological and cognitive aspects of speech, including the sensory, motor, and perceptual processes.

Speech is a well-established, but still mysterious communication channel for human, which relies on our ability to command speech organs to generate a specific set of phonological sounds of our mother languages. And when hearing others’ speech, we are, either consciously or unconsciously, reading what has happened in the talkers’ mouths through the prism of our own “virtual” speech organs in our minds.

Takemi Mochida

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3-1 Morinosato-Wakamiya,

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