Will it happen to everything electrical

hcar

Staying at my mums at the moment and so I have been told by my brother that the 2 year old tv has a high pitched buzzing noise coming from it because of the hearing aid that is worn. I have never heard of this though ever and was just wondering if it is true will it effect my Mac and if not is it just something wrong with the tv ?

geewhiz

I have no idea what you are talking about but sounds like your brother is winding you up !

bingo_bango

As a hearing aid is a simple receiver (as opposed to a transmitter / transceiver), it doesn't emit any signal which could interfere with an RF frequency.

I suspect your brother is trying to blame the problem on the aid, when in fact it sounds like a tuning problem with the TV.

fwor

"because of the hearing aid that is worn"

That's the really confusing part of your question! You don't explain how this fits into the picture.

However, some larger LCD and Plasma TVs are known to make a buzzing or whining noise, probably from the high voltage inverters that they use.

Smaller screens such as that on your Mac don't seem to do this - possibly because a smaller screen doesn't require such a high voltage and/or current.

Someone who wears a hearing aid may be more likely to notice the noise as many hearing aids accentuate higher frequencies, but as the last post says, it's hard to see how a hearing aid could ~cause~ the problem.

BigBouncyBall

electricity by it's very nature is an oscillating frequency. 50Hz, so that buzz you can hear is just the normal noise of electricity.

totalsolutions

high pitch is the LOPT (line output transformer). Audio aid is picking that up I would think.