Your child’s FM system may have a directional microphone.
This can help reduce the effects of background noise and let the child hear your voice or the teacher's voice more clearly.
Directional microphones work by emphasizing the sound coming into the top of the microphone and de-emphasizing the sound coming from the sides. So, to work correctly, a directional microphone must be worn so it is pointing directly at the speaker’s mouth.
|If a directional microphone is worn pointing away from your mouth (for example, towards your shoulder) the microphone will emphasize background noise instead of your voice. This will make it much harder for your child to understand what you say.|
A directional microphone cannot be used by a group of speakers clustered around the transmitter. For example:
In both these examples, the voices of the other speakers will NOT be clearly picked up by a directional microphone.
Wearing a directional microphone
It is suggested you wear the microphone using the supplied cord and clip:
If you choose to clip the microphone to your clothing, please be very careful to arrange it so that the microphone is pointing directly at your mouth.
Directional microphones can usually be recognised by the extra sound-entry ports (holes) along the side or back of the microphone.
Directional Microphones -
Omni-directional microphones -
Phonic Ear brand FMs include the PE475 FM, PEEL systems and Solaris FM systems.
If you have any questions about the microphone or FM system, contact your child’s audiologist at Australian Hearing.
15-Nov-2015 7:36 PM (AEST)