D
Deleted member 35357
Guest
Just got interested into Room EQ & doing measurements so quickly got hold of a new UMIK-2 to pair it with REW to get started with some simple room measurements for equalization for some hopeful better sound results.
Wanted to get this started on my old setup to see how it performs and then get any possible recommendations on what needs to be done to upgrade this setup I have with better speakers or just EQ if it was only thing needed. But seeing my initial results with the UMIK-2 I might just need to get a new pair of speakers overall + potential other things.
But before that it's good to get familiarized with REW & PEQ with APO for better in room results. I read the tutorials over here and watched some videos etc to get started.
Measured my practice tuned system with a improper microphone & placement (to see how far off those would have given a result) and then started over with doing measurements for a 20hz-25Khz sweep and try to correct it some with adjusting sub gain & doing some quick equalization using the 7-band Analogue EQ I have between my DAC (Topping EX5) and my powered speaker system. (5.1channel setup for only 2 channel Audio)
It's a simple thing, the Analogue EQ, it's useful for some coarse adjustments but not much. (does help a little as I have other sources than my PC that can't use EQ with current setup)
UMIK-2 showed that I had my SUB gain set way to high. (thanks bad improper other mic)
While the Frequency response elsewhere was quite all over the place. Nothing flat anywhere.
Tried to correct as best as I could but the 7-band EQ isn't reaching where it should. Didn't help much.
Gray line is what a mess it makes was after using a improper mic to measure.
Black Line is what I could do with adjusting SUB GAIN & the 7-band EQ to straighten it up as best as I could.
I could not do much with the peaks & valleys than this with that.
the 10Khz peak could not be flattened with the 7-band EQ.
I then tried out the EQ that REW will spit out. (going for a 74dB target from the black line measurement)
The prediction was really close to the actual results from this REW calculation EQ:
Where does one go from here is the question, keep going and just try for better results?
I tried to measure the final results from a few positions around the listening position and got quite different results from where I had the UMIK-2 when I did the corrections.
Seems I didn't place the mic in a proper position as the included stand wasn't a good fit to use in the chair and decided to place it as close as possible to it on the desktop. It wasn't optimal.
Holding the mic around the area where I sit had lots of variance to the earlier results:
Green is on table, while the blue lines are for holding the UMIK-2 around the seating position after everything was done.
Anything I should know? Missed something critical here or there?
I did measure all speakers at the same time doing all the measurements. Doing individual speakers isn't optimal as the SUB is most likely only getting left or Right channel information while the centre speaker is outputting the other side. (just using duplicate L & R channels)
Thought it would be best.
Waterfall before EQ is applied:
Wanted to get this started on my old setup to see how it performs and then get any possible recommendations on what needs to be done to upgrade this setup I have with better speakers or just EQ if it was only thing needed. But seeing my initial results with the UMIK-2 I might just need to get a new pair of speakers overall + potential other things.
But before that it's good to get familiarized with REW & PEQ with APO for better in room results. I read the tutorials over here and watched some videos etc to get started.
Measured my practice tuned system with a improper microphone & placement (to see how far off those would have given a result) and then started over with doing measurements for a 20hz-25Khz sweep and try to correct it some with adjusting sub gain & doing some quick equalization using the 7-band Analogue EQ I have between my DAC (Topping EX5) and my powered speaker system. (5.1channel setup for only 2 channel Audio)
It's a simple thing, the Analogue EQ, it's useful for some coarse adjustments but not much. (does help a little as I have other sources than my PC that can't use EQ with current setup)
UMIK-2 showed that I had my SUB gain set way to high. (thanks bad improper other mic)
While the Frequency response elsewhere was quite all over the place. Nothing flat anywhere.
Tried to correct as best as I could but the 7-band EQ isn't reaching where it should. Didn't help much.
Gray line is what a mess it makes was after using a improper mic to measure.
Black Line is what I could do with adjusting SUB GAIN & the 7-band EQ to straighten it up as best as I could.
I could not do much with the peaks & valleys than this with that.
the 10Khz peak could not be flattened with the 7-band EQ.
I then tried out the EQ that REW will spit out. (going for a 74dB target from the black line measurement)
The prediction was really close to the actual results from this REW calculation EQ:
Where does one go from here is the question, keep going and just try for better results?
I tried to measure the final results from a few positions around the listening position and got quite different results from where I had the UMIK-2 when I did the corrections.
Seems I didn't place the mic in a proper position as the included stand wasn't a good fit to use in the chair and decided to place it as close as possible to it on the desktop. It wasn't optimal.
Holding the mic around the area where I sit had lots of variance to the earlier results:
Green is on table, while the blue lines are for holding the UMIK-2 around the seating position after everything was done.
Anything I should know? Missed something critical here or there?
I did measure all speakers at the same time doing all the measurements. Doing individual speakers isn't optimal as the SUB is most likely only getting left or Right channel information while the centre speaker is outputting the other side. (just using duplicate L & R channels)
Thought it would be best.
Waterfall before EQ is applied: