Jargon Buster
249
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3D Secure ‒ Mastercard Secure Code & Verified
by VISA. Security procedure introduced by card
companies to reduce internet fraud
‒ an online version of ‘chip & pin’.
A2DP ‒ Advanced Audio Distribution ‒ a
Bluetooth profile that allows high quality audio
(stereo or mono) to be streamed from one
device to another.
ACCA ‒ Across the Counter Communication
Aid ‒ an induction loop
AFILS ‒ Audio Frequency Induction Loop
System.
BAHA ‒ Bone Anchored Hearing Aid.
A specialist type of hearing instrument where
the wearer has a small screw fitting attached to
their skull during an operation. The BAHA clips
to the fitting and sends sounds to the inner ear
using vibration.
Binaural sound ‒ Sound fed into two ears,
not necessarily in stereo.
Bluetooth ‒ short range wireless
communications technology, common with
mobile phones. Universal and used worldwide.
Blu-ray disc ‒ an optical disc storage medium
designed to supersede the DVD format.
CVV ‒ Card Verification Value: also known as
CV2 or security code. The last three digits
shown on the strip on the back of your
credit/debit card. Used for security purposes.
dB ‒ deciBel: a measurement ratio where 3dB
is a factor of 2 ‒ i.e. +3dB is doubling and -3dB
is halving. In audiology, assumed to be sound
but also a measurement ratio used in
electronics and communications.
(note: + 9dB is double, double, double i.e. x8).
DDA ‒ Disability Discrimination Act
‒ UK parliament act of 1995 which makes it
unlawful to discriminate against people in
respect of their disabilities in relation to
employment, the provision of goods and
services, education and transport. A civil
rights law. Updated with Equalities Act 2010.
DECT ‒ Digitally Enhanced Cordless
Telecommunications: used by digital
cordless phones.
DVD ‒ Digital Versatile Disc: an optical disc
which can be used to store data including
movies with high picture and sound quality.
These look like CDs but are different in format
and storage capacity.
GSM ‒ Global System for Mobile
communications. The most popular type of
mobile telephones in the world. Most mobiles
are GSM.
HDMI ‒ High-Definition Multimedia Interface.
HDMI is a digital replacement for existing
analogue video standards.
See page 250.
Hearing Aid Compatible ‒ able to work with a
hearing aid, usually on the ‘T’ setting.
IR ‒ Infra Red ‒ light that cannot be seen by
the human eye, used for wireless transmission.
LCD ‒ Liquid Crystal Display: a low power
display, relying on ambient light to be seen.
Mono ‒ Monophonic: reproduction of sound
using only 1 channel. The same sound will be
heard from all loudspeakers.
MP3 ‒ popular digital audio format which
reduces the amount of data required to store
audio.
NiMH ‒ Nickel Metal Hydride: common
rechargeable batteries
NRR ‒ Noise Reduction Rating: an assessment
of the reduction of noise at ear level, when
hearing protection is worn correctly.
REN ‒ Ringer Equivalency Number: the
number that denotes the loading that a device
makes on a telephone line (a total of 4 is
allowed).
RF ‒ Radio Frequency wireless transmission.
PBX ‒ Private Branch eXchange (also known as
Private Business eXchange or PABX for Private
Automatic Branch eXchange): an office
telephone switchboard system.
PDF ‒ Adobe Portable Document Format: a
computer file format which ensures that a
document prints the same way regardless of
printer or computer setup. Opened using
Acrobat Reader software.
Phono ‒ an industry standard connector for
a sound signal input/output (also used for
video) also known as RCA Phono.
See page 250.
Roger is the new Phonak digital radio aid
platform which operates in the worldwide
licence free 2.4GHz radio spectrum.
SCART ‒ Syndicat des Constructeurs
d'Appareils Radiorécepteurs et Téléviseurs: an
industry standard connector of French origin ‒
a 21 pin connector for connecting audio-visual
equipment together.
See page 250.
Stereo ‒ Stereophonic: reproduction of sound
using 2 separate channels to maintain a feeling
of position (i.e. not all sounds will be heard
through both channels).
TOD‒ Teacher of the Deaf.
‘T’ setting ‒ The Telecoil pickup on a hearing
aid, for use with an induction loop system.
More commonly known as a Loop Programme.
UHF ‒ Ultra High Frequency: the radio
frequency range from 300MHz to 3.0GHz.
USB ‒ Universal Serial Bus: a standard method
of connecting computers to other equipment
such as MP3 players, portable memory devices.
See page 250.
VHF ‒ Very High Frequency: the radio
frequency range from 30MHz to 300MHz.
VoIP ‒ Voice over Internet Protocol: a
communications technology that enables
voice to be transmitted over the Internet.
XLR ‒ eXternal Left Right connector: an audio
connector used in professional and high-end
audio equipment.
See page 250.
~ ‒ means approximately.
As a general rule, extra facilities such as a
Loop Programme (see page 228) are usually
only available on BTE and ITE hearing aids.
ITC and CIC hearing aids are usually too
small to include this extra technology.
Behind-The-Ear (BTE) ‒ with earmould
Completely-In-The-Canal (CIC)
Hearing aid images courtesy of Oticon and Phonak
There are several main types of
personal hearing aid. The majority of
people use two behind-the-ear
(BTE) aids, one for each ear. The
hearing aid is attached to an
earmould, which is individually
made in order to provide a good fit
to your ear.
In-the ear, in-the-canal and
completely-in-the-canal hearing
aids, which are specially made to fit
inside your ear, may be suitable for
those with less severe hearing losses.
Recently "open fit" hearing aids have
become much more common for
mild and moderate losses. These are
BTE hearing aids but instead of an
earmould, a thin tube and dome is
used to deliver the sound to your ear.
Hearing Aids Explained
Open Fit Behind-The-Ear (BTE)
In-The-Ear (ITE)
In-The-Canal (ITC)
(35 pages)
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