30-Jul-2014, 21:12
Thinking about it, I did have a Technics graphic equaliser back in the 90's that did exactly this (frequency wise, not SAM obviously). This was used as part of a 3kw active PA system, with separate fan cooled Peavey power amps, 18" horn loaded bass bins etc. Now this was "professional" DJ'ing kit, not hifi (the word professional is in quotes for a reason, we did get paid for gigs but the term professional is stretching it a bit...)
Anyway, you could plug a decent quality Sure microphone into the graphic equaliser, it ran through a white noise / frequency sweep, and hay presto! it set itself up perfectly. The trouble is, it did not do this very well. The mid band frequencies were about right, but bass and treble were audibly miles out, so we then re-set up everything manually, by ear.
The point being, that the old Technics equaliser was indeed just a graphic equaliser, not capable of the phase correction, time correction and other trick stuff that SAM can do. So setting up something as simple as the Technics via microphone etc. should have worked quite well, but it still didn't. Getting something as sophisticated as SAM set up correctly, outside of dedicated custom designed and equipped facilities, would be at best, very, very difficult. I do wonder if SAM could be provided with some home configurable tweaks though (say, to slightly reduce bass at the speaker port frequency for example), to maybe address some of the boom issues that "large" speaker SAM users have reported? Just a thought.
Anyway, you could plug a decent quality Sure microphone into the graphic equaliser, it ran through a white noise / frequency sweep, and hay presto! it set itself up perfectly. The trouble is, it did not do this very well. The mid band frequencies were about right, but bass and treble were audibly miles out, so we then re-set up everything manually, by ear.
The point being, that the old Technics equaliser was indeed just a graphic equaliser, not capable of the phase correction, time correction and other trick stuff that SAM can do. So setting up something as simple as the Technics via microphone etc. should have worked quite well, but it still didn't. Getting something as sophisticated as SAM set up correctly, outside of dedicated custom designed and equipped facilities, would be at best, very, very difficult. I do wonder if SAM could be provided with some home configurable tweaks though (say, to slightly reduce bass at the speaker port frequency for example), to maybe address some of the boom issues that "large" speaker SAM users have reported? Just a thought.
