FIELD: electrical communication engineering.
SUBSTANCE: invention relates to audio engineering and specifically to the design of a hearing aid body. Hearing aid is made in the form of lower and upper covers, performing function of acoustic isolation from environment, and comprises horn, built-in power supply of semiconductor devices of amplifier, a DSP processor, connectors for connecting a programmer and battery charging means. As built-in power supply there used is light-weight small-size lithium-polymer accumulator with high specific power consumption. Horn is attached to the body of the hearing aid by means of a threaded connection; an optimized design of acoustic inputs is used, which ensures low level of wind noise. Hearing aid has a special compartment with a contact system for connection of the electric sound signal to the input of the amplifier, connection of the programmer to the information input of the audio DSP, charging of the built-in lithium-polymer battery.
EFFECT: increased operating frequency band, increased reliability of hearing aid body.
1 cl, 1 dwg
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