ARI Osaka is performing various developments on sound relation and we show the accomplishments as below.
We classify and explain to the developments for electrical audio equipment, electronic circuit, the buildings for sound facility, and sound consulting business.
Various kinds of development especially in connection with hearing are aimed to gentler sound for people.
Application development of the loudspeaker, which changes electricity into sound, the listening system using earphone & headphone, and the sound acquisition system using the microphone, which changes sound into electricity. There is apparatus which controls directivity and it changes an acoustic field. Moreover, there is the system which gives the vibration based on sound information to the body.
The development examples
Using headband and inner type headphone, the loudspeaker unit and the improved cabinet, and the mechanistic sound circuit was attained.
Low-frequency sound was reinforced using loudspeakers without using dynamic transducer, and we developed the system integration with microphone and loudspeaker.
We conducted the development and analysis for the multi-channel microphone array, which can be attached to vehicle.
The system is designed that the vibration is felt with body directly by actuator in order to be effective in the hearing for music and voice.
* Please indicate and transmit the question and inquiry about the contents of electric audio equipment application development to the “CONTACT US” page.
We perform circuit development, which mainly treats the signal of an acoustical system. There are noise cancellations, a system of 3D audio, etc., are embodied circuits by making electronic control and signal processing mainly.
The development samples
It is mainly the motor control of a machine drive, in development for risk avoidance of automatic system.
We developed the system by which frequency and a phase make various kinds of important signals change on some condition. We also performed the measure which enables signal transmission by a low noise.
We design the control circuit for the improved quality of reproduction sound. We performed bass compensation by motional impedance detection.
The following is a development example of audio equipment, such as designs of the apparatus of voice transmission, acoustic control, and a mixing system.
It is the application development, which utilized the audible band and the ultrasonic wave for the special use. It is realized vibration by using the sound wave. Also develop the system for acoustic measurement for auto parts.
* Please indicate and transmit the question and inquiry about the contents of electronic circuit development to the “CONTACT US” page.
The system design of a sound facility is performed from small space or a home to huge space like a stadium. A customer's needs are broadly met from introduction to the optimization after construction. We also support proposal of architectural sound, construction and repair.
The development samples
The followings are system designs of the public address system with consideration of good reproduction of intelligibility without harshness.
We mainly analyze reverberation and the bad influence with delay, and present problems.
We design the system which reduces the influence of the noise on factory worker or neighboring, and perform design development of sound for standardization measurement, the experiment anechoic room, etc.
* Please indicate and transmit the question and inquiry about the contents of sound facility to the “CONTACT US” page.
We perform acoustic measurement, sound quality evaluation, support of sound technology, and consulting. We improve room acoustic quality, and reduction of apparatus sound, etc. We measure it first and perform the acoustic feature and the sound quality evaluation and improve problems by machine and standpoint of the construction.
The improving examples
We analyze various object sounds. We judge whether it becomes the required comfortable sound quality by psychoacoustics parameters. We find out sounds to become the problem by various filtering.
Technical assistance of sound measurement
We perform the sound reducing and equipment design, as reflect the results of sound quality evaluation mentioned above.
* Please indicate and transmit the question and inquiry about the contents of consulting to the “CONTACT US” page.