Some rooms are equipped with a system of magnetic loops. In cinemas, the installation is not always of quality, the listening is optimum in the rows close to the walls. In large venues (stadium of France, opera, French comedy) it is recommended to put in position “T” and not “MT”. Indeed, the sound coming from the magnetic loop propagates at the speed of light, that coming from the microphones at the speed of sound. The superposition of these two components gives an inaudible result. In case of the boucle d’induction magnétique this is important now.
Audioguides:
Audioguides with built-in earphones generally allow for magnetic induction listening by positioning the earpiece of the audioguide along the earloop or implant in the same way as a cordless phone. For audioguides with ear buds, it is possible to replace the headphones with a magnetic neck loop that is normally available at the reception or, failing that, position the earpieces on the shells of the earloop or implant.
Reception desks: logo
Some SNCF, RATP, town hall and post office ticket offices are equipped with magnetic induction systems. They are indicated by a barred ear. Their effectiveness is variable. We advise to test them systematically and to report your (in) satisfaction to the teller.
Televisions, radios:
A magnetic induction loop can be installed in a room in your home. The system is purchased from a hearing care professional or directly from a distributor. It connects to a television via a scart socket , (usually supplied with the BIM), and on a radio at the headphone jack. The Scart socket is a jack identical to the one you use to connect your VCR or DVD player. On the television, avoid the headphone jack that mutes the sound of the speakers.
MP3, computers, conference rooms:
A magnetic neck loop can be connected to the headphone output of a computer, MP3, phone. Some MP3s have a thinner headphone jack (2.5mm) than the standard one (3.5mm). In this case, use a plug-in transformer (visual). In meeting rooms with microphone / speaker, the neck loop can be connected to the headphone jack of the speaker. In meetings with simultaneous translation simply unplug the headphones to connect the BIM / neckband but sometimes it is necessary to use a plug adapter (sold with headphones) adaptateurs de prise130911BMH
Listening in duet:
Comfortably seated in a coffee shop, isolated from the noise thanks to your individual BIM, you listen to your favorite music on your iPod and you want to share it with your neighbor. In this case use a tap splitter (visual). It will allow you to connect both your loop / choker and normal headphones.
Magnetic induction loop and magnetic amplification:
A well-tuned magnetic induction loop transmits sound from a sound source to the hearing aid (earloop or implant) of the hearing impaired person without distortion or amplification. It is the hearing-impaired person who sets the appropriate sound level for his or her hearing aid. The term magnetic amplification to designate a BIM should therefore be outlawed.
Magnetic induction loop and pacemakers:
Pacemaker wearers can, without fear, enter a place equipped with a magnetic loop for the hearing impaired. Indeed, the magnetic field generated by a loop is 300 times smaller than the Earth’s magnetic field. Under normal conditions magnetic loops pose no danger to cardiac battery holders. However, as a precaution, some manufacturers of BIM recommend not to pass collar / choker within 3cm of the pacemaker.
