Has any positive or negative proof been offered on ARC 2?
 

losguy
I have a sense that, as SPL goes up, your speakers will distort much quicker than the air or reflection points will.

I have a sense that if I try to get 83dbCSPL at my listening position from my 5w desktop computer speakers there will be some serious arguments between me and the local fire service...

OTOH my 10k pa rig would struggle to be that quiet at the same distance.


We have to assume here that the speaker/amp rating is suitable for purpose and that they can produce the required levels within their linear range. The question is whether you can insert pixie dust onto the master output to correct for spot frequency cancellation or resonance at the listening position due to room geometry.

All that matters is a "flat" response at the listening position, and you can get that with pink noise, a measurement mic, an eq and RTA.

If you're struggling to hear detail because of room reflections (reverb) get a thicker carpet....

So... all of this is a bit confusing....I have to wonder is there really any viable and workable solution for the average home studio or do we just "go with the flow" and drink the ARC kool-aid?
 
So, the other day, I was playing with some free room analysis  software on my lappy. It used the lappy speakers to make the pink noise..... about that time my daughter was coming up the steps. A few seconds later, the software locked up the lappy, or perhaps the lappy locked itself up (that happens) then the speakers went into the audio glitch mode sounding like a motorcycle running.....eventually, after what seemed like an eternity, the sound stopped as the computer rebooted itself..... 
 
From the other room I hear my daughter say:  "Wow.. that was annoying"
 
Just another day in the life....

Karyn
I have a sense that if I try to get 83dbCSPL at my listening position from my 5w desktop computer speakers there will be some serious arguments between me and the local fire service...
OTOH my 10k pa rig would struggle to be that quiet at the same distance.

If you put the 10kW PA rig at your listening position I think I'd be calling your local service to save your ears - but of course I'd still leave it to you to argue with them (if they could even hear you...)
 

We have to assume here that the speaker/amp rating is suitable for purpose and that they can produce the required levels within their linear range. The question is whether you can insert pixie dust onto the master output to correct for spot frequency cancellation or resonance at the listening position due to room geometry.

All that matters is a "flat" response at the listening position, and you can get that with pink noise, a measurement mic, an eq and RTA.

That's the point - as already stated earlier, what people usually call "flat" refers just to the amplitude response (graph of amplitude vs frequency). But that's not enough to get the "magic pixie dust" (I like that BTW). Why? Because it ignores the phase response (the graph of phase, or phase delay, vs frequency). If in addition, at the listening position, the phase response is also linear (a sloped line vs linear frequency) then you will get your magic pixie dust. A typical off-the-shelf EQ like you buy today (based on bandpass filters) can never really achieve a linear phase response correction for a room.
 
[Edited for clarity] 

Kool-aid, Kool-aid; tastes great!
T