Paulie
Diamond Member
- May 19, 2007
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But whom is she speaking to so lively?Time traveler. lol The lady is holding a 19th hearing aid.
Where do you actually make out enough in that old ass video to confirm that she's "speaking"?
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But whom is she speaking to so lively?Time traveler. lol The lady is holding a 19th hearing aid.
So she's a deaf schizophrenic?But whom is she speaking to so lively?Time traveler. lol The lady is holding a 19th hearing aid.
I think she is talking to herself, as she hears everything going on around her.
Look at her mouth and facial expressionsBut whom is she speaking to so lively?
Where do you actually make out enough in that old ass video to confirm that she's "speaking"?
1924
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Siemens patent for a compact, pocket sized carbon microphone/amplifier device suitable for pocket instruments.
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A fundamental patent
For a while, the carbon amplifier patented by Siemens played a major role in hearing aid technology and significantly raised the volume of hearing aids.
The electrical energy controlled by the carbon microphone was not fed to the receiver directly. It first drove the diaphragm of an electromagnetic system connected to a carbon-granule chamber. Current was transmitted across this chamber from the vibrating diaphragm electrode to the fixed electrode plate.
The amplified current produced mechanical vibrations in the electromagnetic hearing diaphragm that were then transmitted to the ear as sound.
You're on your own as to why her mouth is moving as though she's speaking to someone.