Attention Makers

CATEGORY: HEALTH & SAFETY

DEAF AND DUMB VOICE ANALYSIS BY USING VIBRATION TECHNOLOGY

MAKERS: VADIVEL COUNTRY: India

This project 100 -/- deaf hearing machine. Very very low price in (only -50rs) This project using two types of deaf human...

The Purpose

Low cost hearing aid machine Low maintenance Withwf

The Technology

Vibration technology https://m.youtube.com/watch?v=_sjR6ikqd0w

Additional Details

A low-cost hearing aid device was designed and constructed to produce an amplified sound for people with hearing loss. A 9V dc was used as the power supply. The condenser microphone was used as input transducer to pick up sound from the environment for conversion to electrical signal, NPN transistor (BC548C) along with three capacitors and five resistors were used as pre-amplifier.to amplify. The integrated circuit (IC) TDA2822M, available in 8-pin mini chip package and specially designed for portable power amplification was used for the amplification function. A 32 ohms ear phone and vibration was used as the output transducer

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