ADDITIONAL AMPLIFIER IMPLEMENTATION FOR TRANSDUCER OUTPUT CORRECTION IN BONE CONDUCTION EARPHONE SYSTEM FOR HEARING AID

• Main Author: BRANDON YUWONO - Nim: 13214141 , ANTHONIUS
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/25694
• Institution: Institut Teknologi Bandung

<p align="justify">Bone Conduction Earphone use bone conduction method to transmit sound from surrounding to the user. Bone conduction is a sound conduction method that use bone especially skull as a conduction element. This method is different with the method that we usually use to hear whichis air conduction that use air as conduction element. To conduct sound using bone conduction method, a special transducer is needed. The quality of the transducer have to be a good one to conduct a clear and clean sound. To make a bone conduction transducer, the components that we use are coil and magnet which is fairly easy to get but the output is greatly determined by the amount of coil, the neatness of the coil and many more so it’s fairly difficult to achieve a good output for the transducer. To fix this problem, one of the method that can be used are to put additional amplifier that is specifically used to add an additional gain to the output of the transducer so it can get the desireable output. The test is done by comparing the output and the frequency response of the system that use the additional amplifier and the system that doesn’t use the additional amplifier. The output of the system that use additional amplifier will later be compared with the reference transducer. <p align="justify"> <br />