- Sound Processing
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 wearers 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.
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 wearer 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 favorite song.
|Capability||Conventional||HiResolution||Features and Benefits|
|Intensity (Amplitude)||45dB||Up to 80 dB||Wide programmable IDR captures more of the acoustic environment to help users hear sounds loud to soft, near and far|
|Spectral Resolution (Spectral Bands)||Up to 22 bands||Up to 22 bands||More accurately delivers the entire captured spectrum to enhance music perceptionand ability to hear in noise|
|Temporal Rate (Timing)||
|Preserves fine temporal structure of the input signal to better distinguish voices, environmental sounds, appreciate music, and hear in noisy environments|
This important study proves that Harmony recipients have the opportunity to hear and enjoy music better than ever before.2,3 HiRes Fidelity 120 sound processing is the only strategy that can implement simultaneous current steering to deliver the dimensions of music (loudness, pitch, timing) for a full musical experience. AutoSound’s programmable wide Input Dynamic Range (IDR) and automatic volume control adjust automatically so that you don’t miss a note. And the naturally placed T-Mic microphone makes it effortless to use your MP3 player. This advanced technology only from AB works in concert so that you can hear your best.
“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. L., MD; Associate Professor, Department of Otolaryngology, Johns Hopkins Hospital.4
Studies have shown that compared to using other sound processing strategies, AB wearers using HiRes Fidelity 120 hear speech better in noise and experience improvements in music and sound quality.5-7
*HiRes Fidelity 120 and HiRes Optima are approved for use in adults and in children over the age of 12 months