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Science of hearing
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Victoria - 250.370.2833
Sidney - 250.656.2218
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Hearing testing
 
 
  Open Fit Hearing Aids:
  A discreet style of hearing aid which houses electronics in a stylish casing which sits behind the ear. A very slim tube is attached to the casing with a small dome on the end which sits inside the ear canal. This hearing aid is appropriate for people with normal or near normal low frequency hearing but have hearing loss in the high frequency range. The ‘open fit’ dome allows natural low frequency hearing to come through and gives a boost in the high frequencies to accommodate the hearing loss. The comfort and versatility of open fit hearing aids makes this style a popular choice for people with hearing loss. Open fit hearing aids are available in a wide variety of styles and colours to suit your lifestyle. A remote control option is also available.
   
   
  Assistance in background noise:
  The number one complaint from hearing aid users is difficulty hearing in the presence of background noise. Once the background noise rises above the speech level, the ability to hear in such environments becomes extremely challenging, even for normal hearing ears. Although there is no current technology which will completely cut out background noise, for even “normal” human hearing does not have this capability, there are a number of technologies to assist with hearing in noise. Such technologies include directional microphones, remote microphone hearing aids to take advantage of the natural pinna effect, looped systems and hand-held microphones and FM systems to increase the signal to noise ratio. Consult with your audiologist for further discussion regarding these options.
   
   
  Feedback Control:
  Have you ever sat in a quiet room and suddenly you hear a high pitch squealing sound coming from someone’s hearing aid? This is called feedback which can occur for a number of reasons, and more often than not the hearing aid wearer is unaware that their hearing aid is making this sound as they cannot hear it. Advances in programming software allows for a program to be run with your hearing aid for feedback management to help ensure that feedback is not going to be an issue for you. Other causes of feedback are earmolds that don’t fit properly, a hearing aid that has not been inserted properly and one of the biggest causes of feedback, earwax in the ear canal.
   
   
  SoundRecover:
  SoundRecover is one new type of sound processing for people who have extremely poor to no measureable hearing in the high frequency ranges. In simplified form, SoundRecover acts to take those frequencies where no measurable hearing is found and ‘shifts’ them to lower frequency ranges where the hearing loss is less severe. By re-creating, so to speak, some of those high frequency sounds this may help to restore clarity and improve intelligibility of speech sounds. SoundRecover is simply activated in the programming software by your audiologist
   
   
  Cros and Bicros Hearing Aids:
  Although it’s more common for people to have hearing loss in both of their ears, some people have normal or near normal hearing in one ear with no useable hearing in the other ear. This means that the hearing loss is so severe in the poor ear that a hearing aid would not help. There are several limitations to only having hearing in one ear such as losing the ability to localize where sounds are coming from, not hearing someone speaking to you if they are on the poorer side and having to constantly turn your head with the better ear toward the sound source. The CROS/BICROS hearing system helps to resolve these issues as the device on the poor ear side picks up sounds and transmits them to the better hearing ear device. Although this device does not restore natural hearing, having awareness of sound on the poor ear side will help to open up possibilities to once again participate in situations that were previously overwhelming when relying only on one ear hearing. Additionally, sound awareness on the poorer side will assist with sound localization, the ability to determine from which direction sound is coming.
   
   
  Remote Controls:
  Depending upon the size and style of your hearing aid you may or may not have access to features such as a volume control or a program change button for optimal hearing in a variety of listening situations. Additionally, some individuals may want to be discreet with their hearing aids, wanting access to these features without having to bring their hands up to their ears while others have dexterity issues making it difficult to find the volume or program controls. Regardless of the reason, most hearing aids these days have the option of a remote control device allowing the individual to make volume changes to suit the multiple environments that may be encountered throughout the day. Remote controls also allow for changing to customized programs such as a program to help in the presence of background noise, for telephone use and for listening to music to name a few. Some remote controls have an ‘automatic reset’ button so if you are unsure what volume setting you are at or which program you are in you simply press the reset button and the hearing aids return to their originally programmed settings. Depending upon the hearing aid, some remote controls also act as a Bluetooth interface for connectivity to Bluetooth enabled devices such as a cellular phone, computer or iPod. Consult with your audiologist to discuss if a remote control would be a beneficial option for you.
   
   
  Telecoils:
  A telecoil, commonly referred to as a “T-Coil” or “T-Switch” is a small collection of coils within the hearing aid which picks up electro-magnetic energy from other sources such as a telephone or induction loops such as a neckloop and converts the energy into sound. The advantage of a telecoil is that it increases the signal-to-noise ratio for greater access to hearing speech. How does this happen? When the hearing aid is in the telecoil program, the environmental microphone is shut off and the telecoil picks up the electromagnetic energy from the source and converts it to sound. For example, when trying to use the telephone with the grandchildren visiting and playing music, the telecoil program will shut off the noise in the environment while still allowing you to hear the speech from the person on the other end of the telephone. Another issue that telecoils help to eliminate is feedback (squealing) which can occur when the telephone receiver is placed too close to the hearing aid. Because the hearing aid microphone is turned off when the telecoil is activated, the telephone receiver can be placed near or on the hearing aid without producing feedback. Other devices the telecoil can be used with are induction loop systems whereby either entire rooms are lined with an induction loop (a room loop), or a neckloop which is worn around the neck. Both of these loop systems transmit the signal from the speaker directly to the hearing aids. Loop systems are ideal for cutting out background or distracting noise at meetings or conferences for example. One disadvantage of telecoils is that the telecoil may pick up the electromagnetic signal from any device within close proximity such as fluorescent lights, computer screens, television screens and electrical panels. These devices will produce an audible humming sound which can interfere with the signal you are wanting to hear. Telecoils are not available in all hearing devices so consult with your audiologist for a discussion regarding telecoil options.
   
  Science of hearing
   
  Schedule an appointment:
  Our friendly staff will be happy to discuss your particular needs and schedule an appointment with one of our registered audiologists.
   
  Victoria BC, location - 250.370.2833
  Sidney BC, location - 250.656.2218
   
 
 
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