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Introduction to the CROS
hearing loss (UHL), also known as single sided deafness, refers to the total loss of hearing in one ear with
either normal hearing or aidable hearing loss in the better ear.
loss in one ear has been found to be very debilitating. With
limited options available for medical treatment, one solution is to transmit sound from the unaidable ear to a
receiver on the normal hearing ear. An example of this is a CROS (Contralateral Routing of Signal) hearing aid.
The new Phonak CROS is the smallest, most stylish and technologically advanced
wireless CROS/BiCROS solution designed to meet your individual needs and preferences. It is available in a BTE or ITE style. Phonak CROS consists of only two
parts, a transmitter microphone for the ear that cannot benefit from a hearing aid, and a receiver hearing
aid on the better hearing ear. This means that when sound comes from your poorer hearing side it will be
wirelessly sent to your better ear. This will enable you to hear sounds regardless of where they come from.
When your better ear hears
The transmitter placed behind
or inside your poorer ear, picks up sound and transmits it wirelessly to the normal hearing ear. The hearing in
your good ear will remain natural and completely unaffected.
When you have a hearing loss in your better ear
The transmitter placed behind or inside your poorer ear, picks up sound and transmits
it wirelessly to the better hearing ear. At the same time, the receiving hearing aid also serves as an
amplifier improving hearing in that ear.
The Phonak CROS Transmitter is available as a BTE in the Audéo S Smart BTE housing or
as a custom product in a half shell or full shell option.
Phonak CROS Features
An acoustic environment is made up of many different sound situations that vary
constantly. SoundFlow, the multi-base automatic feature of the Phonak CROS System, seamlessly adapts and
integrates the right set of parameters to ensure optimal listening for every sound environment. The streamed
signal from the CROS transmitter and the signal from the hearing instrument on the better ear undergo the
same SoundFlow signal processing. So depending on what environment you are in, both signals are
simultaneously optimized to the changing environment in real time.
REAL EAR SOUND
Precise localization of sounds is needed to feel comfortable and secure in all
acoustic environments. This is achieved with the help of the natural directivity of the pinna. It provides
important monaural spectral information, in particular in the high frequencies, which is necessary to avoid
front-back confusions. The location of the microphone in a BTE instrument degrades pinna cues and worsens
localization. Real Ear Sound, a monaural directivity algorithm, simulates the pinna by utilizing advanced
signal processing schemes restoring the front to back localization. The Phonak CROS instrument is equipped
with Real Ear Sound to improve your localization capability as well as improve speech when in noisy
With one touch of the button on either the CROS transmitter or hearing instrument,
QuickSync instantaneously changes the volume or program settings on the Phonak CROS device and on the hearing
instrument. So, now you can control your Phonak CROS System with one button. An additional control option for
Phonak CROS is provided by myPilot or Phonak PilotOne remote controls.
Phonak CROS System is the first
CROS instrument to have clear and distinct connection alerts that are activated in the unlikely event that the
wireless connection has been lost, and when it has been re-established. The Phonak CROS also has battery status
alerts for the CROS transmitter and hearing instrument, providing further security.
With the Phonak BiCROS system,
you will have access to the Spice Platform features such as Automatic
SoundFlow, UltraZoom, WhistleBlock, NoiseBlock, SoundRecover and manual programs.
Phonak CROS can accommodate the
widest range of hearing demands, from normal hearing (CROS) to any degree of hearing loss in the better ear
The Phonak CROS - the ultimate CROS/BiCROS solution thanks to the
Phonak Spice Generation.
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