The importance of hearing with both ears
Understand Speech in noise
If you can only hear in one ear it makes it more difficult to pick up on quiet speech in a noisy environment. Hearing with both ears also makes it easier for your brain to practice selective listening. This means you can focus on the conversations you want to hear.
Not being able to tell where sound is coming from may cause problems.
For children, it can be hard to understand the teacher in class or the coach on the sports field.
For adults, driving through traffic can be difficult. For both, crossing a busy road could prove dangerous.
Avoid the head shadow effect
When you can only hear with one ear, sounds that come from your ‘bad side’ fall in the shadow of your head.
Sounds have to travel around your head so your ‘good ear’ can send them to the brain. As a result, sounds can be difficult to hear and understand clearly, especially in noise. This is particularly true for higher-frequency sounds.
People who have lost hearing in one ear say they enjoy music less and describe it as sounding unpleasant, indistinct or unnatural, compared to how it sounded with both ears.
Binaural hearing and speech development in children
Hearing with both ears helps children better understand speech and language. This is important for their learning and development.
What is bimodal hearing?
For the right person, bimodal hearing can provide a better hearing experience than using two hearing aids or a cochlear implant on its own.
When compared to using a hearing aid or cochlear implant alone, users of bimodal hearing report:
• a more natural hearing experience
• improved speech understanding in quiet and noise
• improved perception of music
• better functioning in real-life environments
In a large study, users of bimodal hearing also reported much higher satisfaction with their hearing performance compared to when they previously used two hearing aids.
Bilateral hearing: two hearing implants
If you have a bimodal solution but still struggle to understand speech, bilateral hearing implants may improve speech comprehension, which may help you to communicate more effectively.
Children spend most of their waking hours in complex noisy environments. To improve speech understanding in noise, as well as localise where sounds are coming from, the brain needs input from both ears.
Providing both ears with early input ensures the auditory pathways are supported to maximise a child’s development.
Bilaterally implanted children reach hearing performance goals earlier than unilaterally implanted children.
Your audiologist can advise you on bimodal or bilateral hearing treatment options for you or your loved one.