Hi all,
I currently have 9 pairs of bookshelf speakers in the basement and i'm conducting a little shootout in order to find which I like best. As part of the journey, I've decided to pick up the miniDSP USB mic and perform some measurements using REW to help objectify things and help map what I hear to what i measure.
Here's an example of three in-room measurements. The mic is horizontal at tweeter level, at listening position about 8ft away. I'm in my basement which is a decently large room and seems pretty acoustically dead. insulation on the ceiling, foam tiles on the floor, and racks of drying clothes behind me, and lots of crap in general.
The three speakers here are Elac Debut 2.0 b5.2, Ascend CBM-170 SE, and Q Acoustic 3020i. By ear, the Elacs sound flat, the Ascends seem hyped more trebly, and the 3020is are somewhere in the middle.
Questions:
I currently have 9 pairs of bookshelf speakers in the basement and i'm conducting a little shootout in order to find which I like best. As part of the journey, I've decided to pick up the miniDSP USB mic and perform some measurements using REW to help objectify things and help map what I hear to what i measure.
Here's an example of three in-room measurements. The mic is horizontal at tweeter level, at listening position about 8ft away. I'm in my basement which is a decently large room and seems pretty acoustically dead. insulation on the ceiling, foam tiles on the floor, and racks of drying clothes behind me, and lots of crap in general.
The three speakers here are Elac Debut 2.0 b5.2, Ascend CBM-170 SE, and Q Acoustic 3020i. By ear, the Elacs sound flat, the Ascends seem hyped more trebly, and the 3020is are somewhere in the middle.
Questions:
- I see the room modes down below 300Hz. Should i be focusing mainly on 300Hz and up?
- How much smoothing should be used?
- The differences are there, but somewhat subtle considering how different these speakers sound. I guess i can see there's more going on between 2-3k with the Ascends, for example. Is this degree of nuance about right?
- Should i attempt to "normalize" the levels by using the dB offset in the graph options to account for speaker sensitivity?
- Should i attempt to use gating to minimize room interaction?
- Does this approach in general make sense? What should i do better?