from q.ed.
For an HDMI cable to
perform perfectly it requires precision conductor
geometry, equally precise construction and of
course, the highest quality materials.
my two freebies work perfect , they must have the above then ??
You don't need to know what's going on inside the cable, that's our job
no , i absolutely do want to know ...
HDMI is currently specified to carry up to 10.2 Giga bits of
uncompressed video, multi-flavoured audio and control signals every
second. That's the equivalent of 700 simultaneous HDTV broadcasts,
1,000 parallel high-speed broadband connections or the music from
7,500 CD players side by side, all playing at once. So actually, it's very
fast indeed.
wow , must be cheap to make too , cos my freebies do all of the above...
Having reduced the whole of the high-definition audio and video
experience down to these four sets of wires, the end result is a 'clock'
and three 'streams' of 1s and 0s (highs and lows, ups and downs).
But these aren't the only signals. The second part of the story is the
existence of additional 'control lines' (over and above the wires
discussed so far). These are used to keep the sending and receiving
equipment, at either end of the cable, successfully talking to each
other. Although they conduct much slower signals than the main wires,
without these 'control line' connections there would be no pictures or
sound.
i get pictures and sound , so my freebies must also , remarkably , contain the above ..
care still needs to be
taken to ensure these signals arrive cleanly at the other end. Needless
to say, QED takes that care.
then whoever made my freebies must also have taken that CARE , cos i have a picture..
Do you know if your TV
does 3Gbps or 4Gbps? Do you (or indeed anyone) actually care?
nope , and i dont care , cos i have a blinding picture on it , using my freebies...
Poor
choice of materials, imprecise control of cable
geometries during manufacture, as well
as physical imperfections and
construction tolerances are
all sources of error
which can
degrade performance,
even after the original design has
been passed as adequate.
but if there is an error , you wont get a picture/sound , so my freebies contain no manufacturers errors ..
To use an analogy, if someone fires a gun at
you, there are some who would argue that
being missed by just one inch is exactly the
same as being missed by a mile. However,
when the gun is being fired as often as it is in
an HDMI cable, and in addition, being fired
from a hand that is shaking (however minutely)
I personally would feel a lot happier if I was
confident the bullet would miss by a mile!
to use another analogy ,
EDITED BY MODS
Another hidden headache is, even if the cable
achieves perfect transmission of the audio
and video; a fault in the important
'communication' wires, can still stop the
picture appearing. To be successful on every
occasion, the cable designer must ensure the
control lines are correctly maintained for all
cables and for all lengths.
i always have a picture , so my freebies must have perfect communication wires..
if the communication lines are
clean, but the cable cannot cope with the
highest resolutions needed, then the two
connected devices will tell each other that a
higher resolution is possible and switch to
that mode, again resulting in a blank screen!
yup , my screen isnt blank...
We know every QED cable is fully up to the job
because that's the way we design them. Each
one conforms to our described geometry and,
from inside to out, is carefully crafted from our
chosen materials. QED doesn't use anyone
else's cable; and we don't make cables for
anyone else.
carefully crafted from our chosen materials , hmmm , by a robot , nostalgic...
So, the complexity is removed. We've handled
the complication and what remains is only
the reassurance you need to make a
simple choice.
ok , ill stick with my freebies , cheers....
Facebook
Twitter
Instagram