Just the way a high-definition television delivers a higher-quality visual picture, HiRes Fidelity 120 is designed to deliver a higher-quality sound representation. The higher the spectral resolution, the better a recipient can hear a frequency or “pitch.” High spectral resolution is particularly important for listening in noisy environments as well as hearing and appreciating music. AB’s HiRes Fidelity 120 delivers the highest spectral resolution – 120 spectral bands for five times more than other brands – to help you hear every word of your important meeting or every note of your favourite song.
Spectral resolution refers to how well the cochlear implant delivers frequency, or “pitch” information, to the inner ear through a proper sound intensity. Typically, cochlear implant recipients hear different pitches when different electrodes are stimulated and when the rate of the stimulation varies. The better the spectral resolution, the better you can hear these pitches for better hearing in noise and music enjoyment. Improved spectral resolution is designed to more closely resemble normal hearing.
“Current steering (HiRes Fidelity 120)...represents arguably the most exciting development in sound processing strategies since the introduction of the multichannel implant...the ability to perceive music is being increasingly viewed as a pinnacle of achievement that may be possible through cochlear implants.”
— Charles J. Limb, MD; Associate Professor, Department of Otolaryngology, Johns Hopkins Hospital; from Current Opinion in Otolaryngology – Head and Neck Surgery, 14:337-340, 2006.4
Studies have shown that compared to using other sound processing strategies, AB recipients using HiRes Fidelity 120 hear speech better in noise and experience improvements in music and sound quality.5-7