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Audioholics Room Correction Mic Placement Tutorial

Do you also do this at different volumes, e.g. 60dB(Z), 70dB(Z), 80dB(Z), 90dB(Z), ...?

No, I have not found that to make a significant difference.
 
Also, then you can run into the problem that people wasting time and energy to take measurements that invite systemic error - obsessive focus on using "the same points." The confirmatory sample should actually a be spatial average of random points covering roughly the same volume.

It would be much better and interesting if those kind of YT videos include measurements that you described, not just a single frequency response at the MMP, but even with just one from the MMP is a lot better than just talks about how great some xyz room EQ/Correction work without any measurements at all.
 
Flak did mention something about choosing the crossover points earlier in the days when DLBC launched:

Yes, experimentation is usually rewarded because DLBC has apparently no way of automatically optimising the crossover point. However (and to the point I made earlier), one mustn't rely on the predicted frequency response alone. It often does not reflect reality, misses bass suck-outs or makes them up when they don't actually exist. REW measurements should be taken along the way for optimising the crossover point.
 
I casually listened to this at work yesterday, and his statement that the ARC Genesis mic is directional caught my attention. Anyone able to confirm or deny this?

From marketing pictures the area around the capsule looks similar to a cardioid. But a cardioid pointed at the ceiling isn't particularly useful for room measurement, so maybe that's just a style choice. Maybe it's a beamforming MEMS array, or maybe marketing really wanted to have a sticker on the microphone...
 
I casually listened to this at work yesterday, and his statement that the ARC Genesis mic is directional caught my attention. Anyone able to confirm or deny this?

From marketing pictures the area around the capsule looks similar to a cardioid. But a cardioid pointed at the ceiling isn't particularly useful for room measurement, so maybe that's just a style choice. Maybe it's a beamforming MEMS array, or maybe marketing really wanted to have a sticker on the microphone...
Can confirm. It has an opening on the side of the mic (the dot) as well as the upward facing opening.
 
Can confirm. It has an opening on the side of the mic (the dot) as well as the upward facing opening.
Thanks for confirming!

That is interesting and raises some question about it's polar pattern and what Genesis is "listening" for.
 
Thanks for confirming!

That is interesting and raises some question about it's polar pattern and what Genesis is "listening" for.

To me that could be lot of marketing hype (may be only negligible effects) there, as I have ignored that "dot facing" thing and it didn't seem to matter to the results.
 
To me that could be lot of marketing hype (may be only negligible effects) there, as I have ignored that "dot facing" thing and it didn't seem to matter to the results.
Thanks for providing your own experience to that. It is in line with what I would have expected give the appearance of the mic body. I mean, it could have a mini cardioid array in there for direction finding, but it doesn't sound like Genesis does that.
 
I have been involved with "Home Theater " EQing since 1993.

First time I've seen such a tight 24" measurement window.
Started with RTA in five positions.
Then moved into THX specifications.
THX recommended some weighting for main listening position.
Warned against room boundaries and seating cushion proximity also.
Before computer usage for calibration.
THX simply the best sound around
 
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