The hearing aids that humans first discovered were — our palms. This is an original era of hearing aids. People put their hands in a cup shape and put them behind the auricle to listen to others more clearly. In fact, doing this is equivalent to increasing the area of the auricle and making the gain of the middle and high frequencies. Raise 5-10 decibels and help people with mild hearing loss.
In the mid-17th century, different types of hearing aids appeared slowly, such as pot-shaped, pipe-shaped, tubular, horn-like, and trumpet-shaped sound collectors; these devices were close to the speaker, allowing people to hear more clearer sound.
With the development of society, people pursue smaller hearing aids; in the late 19th and early 20th centuries, toner microphone hearing aids and vacuum tube hearing aids have appeared one after another; at this time, the hearing aids are box-type.
In the 1950s, transistors were used in hearing aids, and glasses-type hearing aids appeared;
In order to pursue a more subtle shape, in the 1960s, the application of integrated circuit technology and the further development of microphones, the ear-back and in-ear hearing aids were born one after another, quickly occupying the mainstream market;
Different technologies for hearing aids:
Before 1996, the technology of hearing aids was immature, and there were several hearing aids for analog technology and hearing aids for digital and analog.
In 1996, all-digital ear-back machines and in-ear hearing aids were produced; until now, all-digital technology hearing aids are still mainstream and are developing at a high speed, continuing the above styles and applying them to this day.
The development trend of hearing aids
Hearing aids, which are meant to be hearing aids, refer to a single piece of equipment or instruments for hearing aids. Over the years, the term has remained unchanged until the advent of digital technology. Now, “hearing aid” is being replaced by another term: English It is a “hearing system” that can be translated into a “hearing aid system” covering software and hardware. In addition to their names, the old hearing aids are not the same as today’s complex hearing systems. The hearing aid system is not only very different in hardware from traditional hearing aids, but more importantly in Breakthrough development in its function and scope of use, effective noise reduction technology, acoustic feedback processing technology, automatic program switching, use of data storage extraction technology, innovative fitting software technology, environmental adaptation and processing technology, sound transmission system These important new technologies have once again formulated the basic definition of the hearing aid system. It is precisely the promotion and use of these new technologies. Today’s hearing aids are not only to compensate for hearing loss, but to improve the comfort of use. Degree, meet the complex and versatile use environment, greatly improve the sound quality.
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