Soundstage Pull and Disparate Phase Measurements

[ernestcarl]

Here's one example where an obvious amplitude difference in the bass causes a shift away from center and towards one channel in particular -- male vocals and bass instruments mostly.

Left and Right speaker ~2.2m away at my couch MLP

With a few simple minimum phase PEQs the "bass-drift"towards the right channel is pretty much all but fixed. It also happens to be enough in this case to fix the small phase difference caused by the room and not-so-good positioning.

In the case of the OP, there isn't really much of a huge amplitude level or timing difference way before applying EQ. And he is also using Audiolense to boot... so I'd expect the DSP EQ applied to be even more "accurate" than can be done by PEQs created semi-manually with REW.

 

[mrlawng9]

To clarify, the measurements provided were not using audiolense, they were raw as-found measurements of the D&D 8C system. I had not employed any EQ either.

To answer Amir's question, I can validate because 1) I use music I'm very familiar with where I know vocals are meant to be centered as well as TV newscasts where the anchor is meant to be centered, but 2) I use familiar headphones as a point of reference as well.

 

[mrlawng9]

Would anyone happen to have any acoustic consultant recommendations in the Seattle, WA area?