
Japan is facing an aging of the population. As an increasing number of seniors become involved in society,
the reality is that fewer people will be able to enjoy lectures and events due to poor hearing. SONORITY is a
revolutionary system that improves hearing through clarity rather than volume. This enables
the realization of a sound environment where is easy-to-hear clear sounds can be enjoyed.
the reality is that fewer people will be able to enjoy lectures and events due to poor hearing. SONORITY is a
revolutionary system that improves hearing through clarity rather than volume. This enables
the realization of a sound environment where is easy-to-hear clear sounds can be enjoyed.


Improve hearing reception at lectures, seminars, and mini concerts.
Lectures and many concerts for elderly people held at public facilities are very popular. However there are those who hesitate to go to such events because of hearing difficulties. But for venues with SONORITY, ease of listening is highly improved and even the hard of hearing are able to participate.
Residents at retirement homes enjoy listening to music and
watching TV.
watching TV.
However, when it’s hard to hear, people tend to turn up the volume and this can lead to send negative effects. With SONORITY, you can enjoy listening to TV, movies, and music without having to increase the volume.
*There are cases where those with medium, heavy, or severe hearing loss may not experience an improvement in hearing.
SONORITY the meaning of the name
Sonority means the reverberation or echo from people’s voices or sounds .from musical instruments. Also, in the field of phonetics it expresses the degree of ease of listening. This product was named SONORITY to express our goal of increasing the clarity of, and ability to reproduce original sounds, as well as our intention to continue to refine such technology.

Line array speakers in comparison to ordinary Point to sound the Point sound speakers include a feature that allows sound to reach farther distances. By making use of this feature and of aluminum dual flat panel speaker units, clarity of the speech bandwidth is raised. Another feature is reduced microphone feedback. It is a highly advanced speaker system that works well in all rooms large and small.

Sound quality is mostly unaffected by different room sound environments and there’s a lack of sound difficulties from echo. As the sound easily reaches the back of the room a comfortable listening environment is easy to maintain at the front of the room.
Sound quality is easily affected by different room sound environments, and send difficulties occur easily due to echo. Sound has difficulty reaching the back of the room, so the volume has to be raised at the front of the room.

As shown in this circular graph of the polar pattern, it is clear that
sound produced by SONORITY is focused strongly forward.
sound produced by SONORITY is focused strongly forward.
For voices and sounds to be easily heard, not just volume,
but high clarity and low distortion are important. SONORITY,
with its high-level sound source splitting capabilities,reaches
the limits of clarity while realizing sound with little or no distortion.
Not only for places where hearing assistance is needed,
it’s also useful for PA* or professional audio systems.
*Abbreviation for Public Address system used to deliver sound to
a large audience using loud volume; or anything that fulfills this function.

We at the Ohisama-kai Medical Corporation have focused our many years of experience dealing with home healthcare to establish retirement housing project “La Maison de Soleil” in Chigasaki, Kanagawa Prefecture in May, 2015. In our facility, we focus not only on a restful stay, but also on creating a space where residents can enjoying music from the bottom of their hearts so that they can live every day energetically and in a positive manner. This is why we implemented SONORITY, speakers that allow everyone to hear what’s projected even the hard of hearing. We typically use these speakers when we play soothing background music while serving food, when we hold regular events where professional entertainers are invited to take part in musical programs, or when we offer study programs or workshops for senior citizens. Especially during musical events, we can see directly how our residents are enjoying being able to hear the music and when we see their faces, it makes us glad that we implemented the SONORITY system. Actually, musical event performers often mention how clear the sound is and how it makes a world of difference. One thing that has been made clear to us when choosing speakers, is that louder speakers won’t necessarily mean that the hard of hearing will hear sounds better. What’s important is not volume but whether or not sounds are clear and easier to hear. For example, loud volume during an event performance will inhibit communication and prevent someone from being able to talk to the person next to them. In the future, in a society with a high number of senior citizens, speakers such as SONORITY that produce clear and easy to hear sounds, will become more and more essential.


Mr. Mitsushiro Tsujida
Director, Ohisama-kai Medical Corporation
Director and the Secretary-General of Ohisama-kai Medical Corporation which specializes in home healthcare. He’s involved in creating an ideal sound environment for the hard of hearing residents at their retirement home La Maison du Soleil so that they can enjoy music more deeply, while at the same time entertaining residents by performing in events as a drummer.

Our inn is a seaside inn built on an ideal spot - facing the Futamiura Beach, one of Japan’s top 100 beaches known for its famous “husband and wife” rock formation. The current proprietor is a 4th generation owner of this well-established traditional inn, and wanted to create the unique concept of an “Inn by the sea where the jazz flows free”. We began holding free jazz performances some 15 years ago and now, as a gift that you don’t have to pack, free jazz concerts are held once a month with each one featuring a wide variety of musical guests. I also perform as a vocalist. Originally it began as a revitalization project carried out on an individual level, but as our reputation spread, we began to have more and more customers staying just for the live performances. At the beginning we used normal speakers, but as the level of our performances increased, we wanted to have better sound. It was then that I met Mr. Nakaishi - this was before he established and became president of Universal Sound Design Inc. I had the opportunity to listen to SONORITY which was still in the development stage, and the moment I heard it’s sound, I fell in love with this silky and clear sound quality. In 2012 we became the first to implement the system. Of course we wanted to provide the SONORITY sound to our customers with discerning tastes, but the true magic of SONORITY is that it allows seniors who are losing their hearing or those with hearing disabilities to enjoy clear sound. Not being able to enjoy music because of unclear sound is a tragedy. I sing in the hopes that I can provide some precious, pleasant moments for such people who come to our live performances.


Miharu Hamachiyo
Hamachiyo Inn, Okami
Futamiura, the beach for purification where those visiting Ise Shrine can cleanse their mind and body. In front of a spectacular view stands the traditional Hamachiyo Inn where she worked as a young okami as well as a jazz vocalist. At the monthly live jazz performances which have become a custom, she uses her outstanding to entertain the many guests.
Speaker section
Catalog number | SONORITY F804 |
---|---|
Model | Line Array Speakers |
Impedance | 8 Ω |
Rated resistance input | 40 W |
Maximum input | EIAJ 80 W |
Playback frequency band | 125 Hz to 15 kHz |
Dimensional specifications (W x H x D mm) | 162 mm (W) x 672 mm (H) x 110 mm (D) |
Output sound pressure level | 90 dB |
Weight | 4 kg |

Seeking harmony with nature, SONORITY brand speakers use Hokkaido Birch thinned wood for the speaker enclosures in an effort to create nature-friendly audio.

USD ACOUSTICS is
a brand of state-of-the-art devices that realize high-resolution sound quality, such as Clearness Line Array Speakers and Class D amplifiers for professional use for PA systems and studio monitors.
UNIVERSAL SOUND DESIGN Inc.
Tokyo Main Office
2F, Marinx Tower, 1-9-11, Kaigan, Minato-ku, Tokyo, 105-0022 Japan
Western Japan Branch Office
5F Tenjin Building Plus, 4-8-2 Tenjin, Chuo-ku, Fukuoka-shi, Fukuoka 810-0001 Japan
Kyushu Order Center/Kyushu Service Center
950 Tateno, Yoshinogari-cho, Kanzaki-gun, Saga 842-0032 Japan
Through the Japan Universal Design Association, we engage in a variety of activities to assist those requiring hearing assistance such as the hearing impaired or those with post-lingual deafness. We also provide hearing assistance devices by donating a portion of the proceeds from product sales.