Originally posted by: MrDudeMan
Originally posted by: MrWizzard
mpitts
Digital singal = it either gets there or it doesn't.
QFT
not quite.
Originally posted by: mpitts
Digital singal = it either gets there or it doesn't.
No reason to shell out extra cash. As long as the cable works, you won't notice a difference between a $100 and $10 HDMI cable.
actually that isnt true. the speed at which the signal propogates over the wire has more to do with it than the attenuation properties of the cable itself. as long as the cable is properly shielded and the velocity of propogation is sufficient, then yes, it is a signal and it either gets there or it doesnt, but it isnt always that simple. you are making the design of high accuracy amplifiers and electronics in general seem trivial when it most assuredly is not. the point of this thread is if the cables are worth it or not, and the answer is it depends. monster cables are always overpriced - i can safely say that. however, some cheap cables are exactly that - cheap - and do not deliver. there is no way to know without either testing or buying and experiencing.
everyone saying its carrying 1s or 0s is very mislead. the signals carry a hell of a lot more information than 0 or 5V. how do you think so much data is transferred so quickly over so few wires at not that high of a frequency? the answer is it is not a 1 line, 2 possible state situation all the time. it can work on phase change, several voltage levels for several bits per clock, and noise is a problem even in a digital signal. you realize when you say digital that the actual wave is still sinusoidal, right?
the point of all of this is that if your cable doesnt trasmit the wave at above a certain velocity then the trasmitting and receiving ends will not be in sync and data will be lost. if the receiver is expecting a 25 degree phase shift per bit per clock and the wave is "too slow" then it will read a wrong value and it isnt simply a "digital signal" since each wave could carry as many as 8 to 16 different values, not just 1 and 0.