![]() ![]() Using human-body models of different degrees of complexity, the researchers first determined the best representation to ensure accurate results in their simulations and then once this was settled, they proceeded to explore the effects of various system parameters and characteristics.ĭr. In fact, the researchers had previously conducted an experimental study on HBC with real human subjects, the results of which were also published in Electronics. In a recent study, which was published in the journal Electronics, the researchers investigated, through detailed numerical simulations, how electric fields emitted from an electrode in one ear distribute themselves in the human head and reach a receiving electrode on the opposite ear, and whether it could be leveraged in a digital communication system. Because these hearing aids are in direct contact with the skin, they made for a perfect candidate application for HBC. ![]() Such hearing aid devices come in pairs-one for each ear-and greatly improve intelligibility and sound localization for the wearer by communicating with each other to adapt to the sound field. Dairoku Muramatsu from Tokyo University of Science and Professor Ken Sasaki from The University of Tokyo focused on using HBC for a yet unexplored use: binaural hearing aids. To explore the full potential of HBC, researchers from Japan, including Dr. Their findings pave the way to more efficient and safer head-worn devices, such as binaural hearing aids and earphones. ![]() To tackle this issue, scientists from the Tokyo University of Science, Japan, delved deep into human-body communications (HBC), in which human tissue is used as the transmission medium for electromagnetic signals. Your own experience is the most important, so ask your audiologist to let you try wtih only one hearing aid and with two, and listen to yourself.Wearable technology seems all poised to take over next-generation electronics, yet most wireless communication techniques are not up to the task. To them we do not recommend spending a second high-end hearing aid but rather two instruments of a basic range that simply avoiding them suffering from isolation and being communicated with their environment as much as possible.Īnd, as we always say, and will repeat as many times as needed, the last word always is yours. There is also the case of some very elderly people for whom all these benefits provided by two hearing aids are not relevant because of their lifestyle. It is estimated that when the ear with lower loss approaches 25%, is when it starts to be advisable to use the second hearing aid. However, if one of the two ears is healthy or almost healthy, the second hearing aid stops making sense and you can save it. Therefore, there are cases of people wearing a hearing aid in one ear where they have total loss, in order to transmit the sounds they receive from that side to the other hearing aid, to the healthy ear, and so to ensure they hear everything around them. In addition, the second hearing aid provides better directionality (or location), which helps determine the source of the sounds. Listening with two hearing aids also provides a more homogeneous sound, a balanced hearing, which will increase the quality of sounds and, therefore, make it easier to identify them. Therefore, we will achieve the main objective of audiology: improve communication. If we recover binaural hearing, we will improve speech understanding and group discussions. In general, we recommend the use of two hearing aids, because the second hearing aid is the one that will give us the binaural hearing (with both ears), which is as we heard when we have no hearing loss, and because adaptation to sound environment with two hearing aids is much easier. Like almost everything in audiology, there is no single answer to this question, but we will try to give you resources so you can make the decision that makes you feel more comfortable and better hear. Anyone with hearing problems has always wondered: should I buy two hearing aids or one is enough? The eternal dilemma. ![]()
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