Quote:
Originally Posted by jmilt13 
Ok, maybe I meant more along the lines of;
If the LFE is a limted channel, which by its very purpose it is, why hasn't there been a standard developed as to what audio data it will contain?
Seems to me things get directional above 80hz and it should be a digital track 0.1 standard....(screw anyone with bose style mains) Could movie theater setups have anything to do with this standard not being developed?
... or why isn't the LPF a proper "inverse crossover", redirecting to the mains, so nothing is disregarded.
Ok, maybe I meant more along the lines of;
If the LFE is a limted channel, which by its very purpose it is, why hasn't there been a standard developed as to what audio data it will contain?
Seems to me things get directional above 80hz and it should be a digital track 0.1 standard....(screw anyone with bose style mains) Could movie theater setups have anything to do with this standard not being developed?
... or why isn't the LPF a proper "inverse crossover", redirecting to the mains, so nothing is disregarded.
You have very valid points. And more than likely, the theater set-ups drove the standard more than a completely common-sense logical approach (all designs are compromised by real-world implementation factors, including politics and other non-technical reasons).
Indeed, it seems weird to define the frequency response characteristics of a "Low Frequency Effect" channel with any content that isn't truly low frequency/non-directional, but it was probably a compromise in terms of where to put the content associated with loud explosions without impacting the SNR of the channels carrying other content. i.e. there may have been concern that if the 80-120 Hz content from explosions is carried in the LCR instead of the LFE, it might mean the headroom needed for those explosions would lower the overall signal level of the rest of the LCR content to an unacceptable range. I don't think that truly is a concern, but maybe the first generation(s) of systems using an LFE channel were sketchier than today's technology. (I have no idea - just tossing the idea out there.)
shinksma
