Yeah, my father has it too...
Mind you, too sharp a hearing poses also problems, as many (household) devices emit frequencies that most people won't be able to hear. I've returned hifi equipment that was within spec, but still emitted a high tone white noise. When my Nokia phone is charging, I hear the charger emitting a high pitched tone!
Jörg
Mind you, too sharp a hearing poses also problems, as many (household) devices emit frequencies that most people won't be able to hear. I've returned hifi equipment that was within spec, but still emitted a high tone white noise. When my Nokia phone is charging, I hear the charger emitting a high pitched tone!
Jörg
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