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.
In order to determine if the many advantages of digital hearing technology might benefit you, complete testing and evaluation are necessary. To locate a hearing professional in your area, visit our “find a hearing professional” section.