Major Misunderstanding wrote:
> A lady just contacted me and says she can hear her Nokia phone charging -
> like a pulsing sound. Nobody else can hear it but when it is switched on she
> registers the sound from some 2-3 metres away. When it is charged the sound
> stops. I also know of another person who can hear similar sounds from
> electrical equipment. Could this be a low frequency sound or is it something
> odd happening...? With the charger on it's own she doesn't hear anything.
>


Most adults in our industrial society have presbycusis, a fancy word
for hearing loss in the upper register.
Apparently this lady didn't go to rock concerts as a young'un.