Keith Hamilton-3 wrote:
I would imagine there are a lot of us who hear the artifacts but just
don't
realize it? This would account for the undefinable fatigue some talk
about.
You can see these artifacts with a program like Spectran, but they are
only present when modulation is
there are few if any pairs of 'communications' phones that have
significant attenuation above 10Khz yet retain good flat frequency
response over the range we are interested in (~ 100Hz to 4KHz )
the artefacts are aliasing products centred around 12Khz, since these
are not harmonically related to
Brendan,
Not to be argumentative, but some with HF hearing loss may be bothered
by this distortion even though it is low level and is not in the range
of conscious hearing. When I first became aware of my HF hearing loss,
I found that I was increasingly irritated by low grade audio devices
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