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A patent application has been filed for a vocalization assistance device by inventors from the National University Corporation Tokyo Medical and Dental University in Japan. The device aims to produce an original sound on the rear side of the oral cavity, making it easier for individuals to produce explosive sounds made by releasing the tongue against the palate. The device includes a mounting body, a diaphragm capable of outputting recorded sounds, and a passage to transmit the sound to the rear side of the oral cavity. The patent application provides detailed claims and descriptions of the device. [Extracted from the article]