What hearing aids succeed? Learn more to help yourself or loved ones
Content
Types of auditory aids
Hearing Aids — These are devices that enhance the sound. They are used with a raidness of hearing. The prototypes of the auditory devices were only acoustic, they had a kind of horn. The narrow part of the horn was inserted into the ear. Thus, in ancient times, the threshold of hearingness in people with hearing flaws. Now, in our time, people can choose their most appropriate apparatus or use binaural hearing. In addition, it was proved that wearing at the same time two hearing aids despite the fact that on one ear there is a complete hearing loss, it makes it possible to make a lot more effectively with speech sounds and get much more information.
Hearing devices are pocket, earnings and internal. The first type of devices is characterized by ease of control, but such devices are usually bulky and have limited capabilities in the setting. The most widely used hearing prostheses – Consishes. They differ compactness, ergonomics, they are almost unnoticed – After all, the main part of such devices is behind the ear, and only an intravel insert remains visible, which is pre-manufactured by individual castors. Most modern ear hearing aids can be connected to TV. Intravel devices are inserted directly into the ear, and the body of the device repeats the shape of the auricle, the outdoor ear and the auditory passage.
Hearing devices differ from each other in management. Manual setting through special regulators – It is traditionally. But increasing popularity acquire hearing aids that can be programmed. In these devices, the setup is performed using special computer programs. This allows you to configure the device individually for the patient, given it to the features of hearing. Programmable hearing aids can be like an ear-type, and internal. They are usually equipped with two or three programs that allow you to change the power of the sound depending on the external conditions in which a person resides.
Digital hearing aids. The last achievement of Surdotekhniki. Such devices in any atmosphere provide maximum hearing, and they «Make sure» Weaken the frequency of sounds that do not contain speech information. Multichannel hearing aids enhance the volume level at different frequencies, and this leads to a minimum difference between the amplitude structure of speech signals and frequency, which in turn makes it possible to analyze the parameters of the power of sound, frequency, as well as the depth of modulation.
