Over 50,000 units!The ability of "Mirai Speaker" where you can easily hear TV even if your ears are far away

"Mirai Speaker" that clears the sound of TV

　Have you ever used the volume of an elderly family and television? Families who have no problem in hearing feel noisy when they are tailored to the elderly whose hearing has declined. Therefore, some elderly people give up listening to the sound of TV. See images of "Mirai Speaker" (8 pieces) The selection of those people is "Mirai Speaker Home" (Mirai Speaker), which makes it easier to hear sound by connecting to a TV. One year and eight months after its release in May 2020, the cumulative sales have exceeded 50,000 units, showing steady sales. The product, which is equipped with a patented "curved surface sound", will sound clear without raising the volume of the TV, and its structure is completely different from hearing aids and sound collectors. We asked Mr. Hiroshi Yamachi, President of Sound fan, who develops and sells Mirai Speakers, and Kazuki Kaneko, a director, about the innovation and business model of the curved sound.

When connected to a TV, the sound makes it easier to hear

　Mirai Speakers are characterized by converting the sound of the TV into a sound that is easy to hear by connecting to a power supply and television. In particular, it is said that the "human voice", which is difficult for hearing loss to hear, turns into a clear sound. Rather than enhancing the sound, the sound is clear and easy to hear, so even if you use it by ordinary hearing, it does not feel uncomfortable. Therefore, it seems that both people with hearing loss and those who are not can watch TV at a comfortable volume. The ease of hearing is a technology called "curved sound", which has a patent in eight countries, including Japan, the United States, and Canada. In general speakers, the diaphragm is a circular shape, while the diaphragm used in the Mirai speaker is shaped on the flat plate. The reason for the development was a phonograph. Kazunori Sato, the founder of a sound fan, discovered the fact that even the elderly with a declining hearing are easy to hear the sound of the phonograph. He focused on the fact that the trumpet part of the phonograph was curved, developed a curved surface sound and dropped it into the product. During the interview, Kaneko explained the mechanism of the curved sound using a music box and underlay, but I was surprised that the sound was very easy. The volume was clearly loud just by hitting the music box underlay and curving the underlay. This is completely different from hearing aids and sound collectors. "Hearing aids and sound collectors use ordinary cone -shaped speakers, and it is a mechanism that picks up a frequency that makes it difficult for small sounds and hearing loss to hear and deliver the sound. Mirai speaker is a technical approach. Is completely different "(Mr. Kaneko)