Hello guys, thank you very much for your help with this!
1. The "With Me In" measure was done with me sitting in a chair directly behind the measurement microphone. I was trying to get as close to the listening position, but of course the microphone was in my way, so I had to sit a little further back.
2. The sound was playing out of both speakers and the mic was placed pointed straight up at ear level in the engineer position.
3. I did not use a timing reference and would appreciate some help on how to set that up. I have a Focusrite Clarett interface.
4. I'm not sure about the floor noise. There was family home and probably making noise outside the room. It's was treated for absorption and deflection, not isolation, so I am susceptible to outside noise. One thing I did notice, was that to get the input gain on the measurement microphone up to the recommended value, I had to turn the input up all the way on the front panel of the Focusrite.
A quick description regarding my room treatment (see pictures).
Room Size:
Its a smaller room 15' 6" x 11' 10". There is also a cutout cove in the middle of one wall.
Treatment:
There are isoThermal Bass Tubes (Acoustic Sciences Corp) in each corner. They can be rotated 180 degrees, on one side in addition to bass trapping, they add treble diffusion. On the other side they add treble absorption, instead of treble diffusion.
The panels around the room are 4" think panels from ATS Acoustics. The panels in the cove and doors are 2" thick.
The back wall has 3 rows of quadratic diffusors. They are constructed from MDF board.
The floor is bamboo flooring nailed and glued on top of Quiet Walk padding (non floating installation).
The drywall was removed from the ceiling and batt insulation was installed with the Kraft paper facing down in all areas except for the engineer listening area and the area above the rear coach. The fluffy part of the insulation is facing down in those areas. The ceiling is covered in Guildford of Main Whisper fabric on a track system.
Questions:
1. sm52, you mentioned the room being a little too muted. Would you recommend rotating the bass tubes to add more treble deflection vs absorption?
2. What do you guys think about the dip at 96hz? I'm assuming that is a comb filter from floor bounce? Should I try pushing the speakers closer to the wall. Since the room is smallish, I really would rather not pull the console further toward the center of the room.