[Milsurplus] OT: Microphone point source.

Ralph Cameron ramcam at magma.ca
Tue Jul 23 22:39:19 EDT 2013


I've got some Phonak hearing aids. Each earpiece has two microphones 
that are about as small as you can get, probably a 1/16" in diameter. 
You can't beat the fidelity and the aids themselves are Bluetooth 
compatible.iPod, iPad , PC etc. So by connecting a Bluetooth transmitter 
to any audio source, the audio is transmitted to a medallion worn around 
the neck. The medallion acts as a translation device and wirelessly 
conveys the audio to the hearing aids. I believe the connection to the 
aids is done by magnetic loop as the medallion loop is made of insulated 
wire. Phonak is a Swiss company

Ralph
VE3BBM


-- 
Are your electronic gizmos electromagnetically compatible? i.e EMC compliant?



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