
October 2007
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St. John's Clinic-Audiology offers
Bluetooth technology in hearing aids
By Trudy Baker, Au.D.
Hearing aid technology
has evolved over the years from analog to digital circuitry; however, even
with these advancements the needs of the hearing impaired population are
still often overlooked.
The primary challenge has been to provide better
speech understanding while reducing noise in challenging environments like
family gatherings, restaurants and sporting events. In an effort to reduce
interfering noise we have often reduced important acoustical
information found in our surroundings. This ambiance is
essential for the listener to feel connected to their environment.
The Oticon Epoq offers
answers to the following challenges looking closer at the needs of the
hearing impaired today, keeping in mind the importance of the ambiance.
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Preserving and making use of the vast variety of sounds in our daily
environment
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Keeping up with conversation in noisy environments
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Discriminating where sounds are coming from
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Using a cell phone without distortion and interference
High-speed communication
between the hearing instruments or “binaural broadband streaming” makes
binaural processing possible for the first time. This broadband binaural
streaming enables the two instruments to process sound as one allowing the
natural arrangement of sound to be preserved. This helps to maintain the
goal of clear speech understanding, but at the same time maintain the
ambiance of the surrounding.
Another feature of the
device includes expanded bandwidth which helps the listener make use of
localization cues. Information in the high frequencies (4000-16,000 Hz)
beyond what is necessary to hear speech cues is used by the brain to
locate the talker and focus attention on the message.
The Epoq evaluates
changes in volume made by the patient and determines patterns of change
over time. Once a proper sample is taken appropriate changes will
automatically applied without the patient manipulating the volume
control. This feature is called Life Learning.
One of the most
fascinating aspects of the Epoq is it’s Bluetooth compatibility. Bluetooth
technology is utilized for avid cell phone users to provide hands-free
binaural communication on the phone. A device called a streamer is used
to interface between the hearing device and the cell phone. The streamer
also provides connection to other technology such as iPods and computers.
(Oticon Epoq whitepaper, 2007)
Epoq is available in many
different styles and is appropriate for mild to severe losses.
To learn more about this
product and others please contact St. John's Clinic-Audiology at
417-820-5071.
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