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Digital technology's superiority over
traditional analogue hearing aids isn't just what it can do with sounds,
but how much better it does it.
 By
converting the incoming signals into computerized 'bits,' they can be processed,
or manipulated extremely fast and efficiently in many complex ways using
mathematical formulas known as algorithms. This gives digital signal processors
(DSP) tremendous speed and agility to recognize sound's key ingredients.
Like a graphic equalizer in high-end audio systems, algorithms can continually
divide sounds into frequency channels. These help preserve and emphasize
the higher frequencies containing vital consonant sounds in speech the "c"
and "t" sounds in "cat" - over the distracting rumble of low frequency noise.
Algorithms also manage noise by its duration. While speech sounds' intensity
can change radically in a millisecond, noise is more acoustically stable
over a comparatively longer time. Using time, DSP precisely reduces the
levels of continuous sounds like traffic noise and household appliances.
And it instantaneously readjusts when changes occur, restoring amplification
when shorter duration sounds are detected.
 That
same sensitivity is also useful in quiet surroundings. Utilizing an audio
technique called expansion, the digital algorithm senses the consistency
of softer environmental sounds from ventilation systems and appliances.
It automatically reduces amplification in the appropriate frequency range,
immediately restoring proper levels when the sound pattern changes.
Digital algorithms can also minimize and eliminate the onset of feedback,
a common nemesis to hearing instrument use. Within its elaborate frequency
channel network, the algorithm detects the elements of feedback before they
become audible. It then reduces levels in just those discreet channels,
with no noticeable effect on perceived volume levels.
The precision and flexibility of digital technology also gives us the ability
to more accurately tailor your amplification for the best possible match
to your listening and lifestyle needs .
If you're having hearing difficulties please take a minute to read
this.
If your loved one or friend is having hearing difficulties please take
a minute to read this. Other information is also available about:
and:
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