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This section introduces hearing loss and explores how this may impact on a student's academic performance and participation in university life. Students who are D/deaf or Hard of Hearing can face difficulties unfamiliar to the hearing population. Here, the main focus is to suggest ways in which you as a staff member can support students with hearing difficulties within their role of being a student.
Hearing loss is measured in decibels hearing level (dBHL). A person who can hear sounds across a range of frequencies at 0 to 28dB is considered to have normal hearing. The thresholds for the different types of hearing are as follows:
Profoundly deaf people cannot hear sounds quieter than 95dB. In the Deaf community, the word deaf can mean different things- ‘deaf’ refers to a loss of hearing, whereas ‘Deaf’ with a capital ‘d’ refers to identified members of a linguistic and cultural minority. Irish Sign Language (ISL) is the principal form of communication for Deaf people in Ireland. Sign language arose and developed from within Deaf communities.
Deaf students often communicate using sign language and lip reading. Some D/deaf students use cochlear implants or hearing aids. A cochlear implant is a small, complex electronic device that can help to provide a sense of sound. A cochlear implant is very different from a hearing aid. Hearing aids amplify sounds so they may be detected by damaged ears. Cochlear implants bypass damaged portions of the ear and directly stimulate the auditory nerve.
A student who is hard of hearing has some degree of hearing loss. Students who are hard of hearing usually communicate using a combination of strategies that rely on his/her remaining degree of the hearing ability which can be enhanced by a hearing aid or an assistive hearing device. These may include public address systems, induction loops, and transmitter/receiver systems with a clip-on microphone for the lecturer.
A Loop System enables hearing aid users to hear various sound sources in large rooms or reception areas, auditoriums, offices, theatres, or other large public areas. A loop of insulated wire is fixed around a designated listening area and is connected to a power source, an amplifier, and a microphone. Hearing aids that have the ‘T’ switch can be set at this position, thus allowing the user receives a signal, which is carried from the microphone to the amplifier and is transmitted through to the loop wire, similar to a transmitting aerial. A number of loop systems are installed around Trinity. Click here to see the loop system locations.
Deaf/Hard of Hearing Awareness Leaflet
Lip-reading is a demanding activity requiring great concentration. Three quarters of it is guesswork, therefore clear speech and contextual clues are vital.
See the following links for more information about being D/deaf or Hard of Hearing and useful resources: