Re: Audio / tinnitus
- From: wildrover.andy@xxxxxxxxxxxxxx (Andy Hewitt)
- Date: Tue, 20 Mar 2007 16:31:32 +0000
The New Guy <replytogroup@xxxxxxxxxxx> wrote:
This is probably not the most optimal newsgroup to post this to but I
thought I might try here as there may be some audio enthusiasts among
the Apple users here that could shed some light on this problem.
I've always been very sensitive to high frequencies and have noticed a
ringing in my ears in the last few months (tinnitus). It might be
caused or abetted by high frequencies emitted by my speakers and/or
monitor which emits a soft, high pitched whine from the back. The
high frequencies from the speakers are caused by a poor designed amp
that powers them. If I plug the speakers into my iMic which runs off
USB, instead of the headphone jack on the Mac Mini, its exactly the
same. So I know its not the Mac. Its the amp. There is a subtle
high frequency buzz that vanishes when the amp is turned off. Of
course if I turn the volume down its still there as it is the
background noise from the amplification. Its just not a low noise
design.
I'm wondering if anyone else has heard of this. We sit so long and so
close to our computer speakers (my setup especially), any residual
irritations could mount up over weeks or months and manifest itself as
possibly tinnitus. There seems to be no definitive treatment for
tinnitus in the medical field.
I get a combination of nosies here too. A small amount of tinnitus,
mostly from years of doing discos and PA systems, as well as riding a
motorbike daily for 12 years.
However, I have not been subject to much loud audio in the last year,
and it does seem to have improved - although mine was never too bad
anyway. I can still hear high frequencies OK.
As far as the hardware goes, yes, lots of things can make high pitched
noise. The power supply can make a bit - the 'chirrping' G5s were a well
known one. I have an external HD box that makes a whine as the fan runs
up, and I'm pretty sure I also get a bit from the Radeon 9800 card as
well (which has a huge fan on it), not to men tion the 9 fans in the G5
itself.
Old CRT monitors very often make a high pitched whistle too, usually
from the HT coil.
Add that lot up, and you can get quite a significant level of noise from
your equipment.
--
Andy Hewitt
<http://web.mac.com/andrewhewitt1/>
.
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