Finished bass trapping the soffits. So much paneling! At least it doesn’t need to be wrapped up and look nice.
I’m an amateur at REW, but I think the bass traps are working. These are normalized spectrograms, meaning the peaks at each frequency are adjusted to be equal, so you don’t have to EQ to get an apples to apples comparison at each frequency. I’m not too concerned about actual frequency response right now. I just want to test decay hence I’m using the stand-in powered subwoofer.
I guess this is decent from what I understand. Clearly the untreated room is epically horrible. Peak energies building way after the signal, reflections and decay lasting seconds.
From yesterday, majority of the range decays in the 300-500ms range, still with some major reflections and decay in the 33-40hz upwards of 800ms. Peak energy happening quite late in the lows at 100-200ms but good everywhere else, except maybe ~220hz.
From today, majority of the range decays in the 200-400ms range, with a much tighter drop off. Low 33-40hz drops by 200ms. Peak energy at all frequencies occurs at 50ms or less.
The difference is audible, as well. From yesterday some of those lows felt really resonant and maybe even a bit disturbing, today the bass is much cleaner and just “there”.