Are you measuring one speaker at a time or not?REW yes, 2.1 setup, measured at listening position through all speakers
Are you measuring one speaker at a time or not?REW yes, 2.1 setup, measured at listening position through all speakers
No not at all, Dirac corrects for individual channels. With a MiniDSP setup you even have to do the bass management on your own.This is the total response of all speakers combined. I figured that is what dirac is supposed to correct.
MiniDSP thinks differently on the bass management (they say their 2.0 module works really well in a 2.1 system).
By bass mangement do you meen room EQ?
Oke then I understood correctly. That I have done. No delay in sub and speakers since I have placed them at the same distance (2.50 meter driver to ear) and confirmed by measurements.No i mean setting the levels, crossovers and delays between speakers and subwoofers. Dirac in its current configuration can't do that with MiniDSP.
Here you see my dirac results, this with no PEQ whatsoever beforehand (XO 90 hz, 18db/oct speakers, 30 db/oct sub).
I still dont know what to make of this. I like the sound of the full range and the 500 hz, but the 300 hz and 100 hz are off.
I used to use DIRAC only up to 300 hz and this was fine.
If you compare it to manual PEQ or no DIRAC, i seem to loose a lot off bass. What am i missing here.
Measurments are at LP using sub, left and right speaker.
What do you mean by perfectly aligned? Are you saying the delays on the sub flatten the response with the mains in the crossover area OR are you saying that the bass arrives at the same time as the mains?I have time alligned the subwoofer and speakers perfectly using req. Impulse response, step and phase are perfectly aligned. Furthermore, xo problems should be worse at the xo region and not over the whole 30 - 200 hz region and should persist without DIRAC. Neither is te case. DIRAC somehow does not even remotely adhere to the target curve the whole section below 200 hz gets pulled down a lot (3 db under the 2 kHz mark). It's just strange that this didn't happen with the genelecs 8030c in the same setup. Luckily the R3 sounds great without DIRAC and some minor PEQ but I would still like to find out why DIRAC seems to completely mess up.
What's your waterfall or spectrogram look like in REW? Betwen calibrated and non-calibrated?It seems that just restoring default config and reuploading the same filters works.
Apparently there was some kind of software error.
The problem is now that DIRAC does not seem to make it much better after al ;-)
Without DIRAC the curve is pretty nice.
I managed to get away that 80 hz dip by increasing the xo from 60 to 80 hz.
I used slow sweeps between 50 and 150 hz with acoustic timing reference and alligning the step, impulse and phase.What do you mean by perfectly aligned? Are you saying the delays on the sub flatten the response with the mains in the crossover area OR are you saying that the bass arrives at the same time as the mains?
Does this seem right?What's your waterfall or spectrogram look like in REW? Betwen calibrated and non-calibrated?
It is finally working!
Updating the DSP and XMOS and setting the speaker delay on 2.2 ms did the trick.
Sound is really as it should be although this is still an untreated room.
The worst part, miniDSP dev team is basically saying I have to allign the sub (already did)
12 years of DIRAC and never has that been an issue. It really feels like an overconfident tech support.
Also since they don't seem to believe me I have really time alligned the sub.
Curious, only Dirac with Bass Control does that automatically, correct?So wait, after all this it was just that you had not properly integrated the speaker / subs? Which was exactly what miniDSP tech support suggested?
Michael
Curious, only Dirac with Bass Control does that automatically, correct?
No it was the software I think.So wait, after all this it was just that you had not properly integrated the speaker / subs? Which was exactly what miniDSP tech support suggested?
Michael
I actually fiddled with VituixCAD for a while to get to the values I shared in my first post on this thread. Planning to buy the R3 in the future.Unfortunately this is basically impossible to do with in room measurements
I was able to do this with REW and a MiniDSP. Basically align the timing of the subs and mains to flatten that responseThat is correct.
Without DLBC I am a big fan of what @abdo123 mentioned earlier in this thread which is getting your sub / speaker crossover to sum correctly anechoically prior to attempting room EQ. Unfortunately this is basically impossible to do with in room measurements but is achievably based on understanding the speaker / sub low anechoic low end response and any delays caused by speaker placement or other things (many active subs have some amount of built in delay due to DSP).
Michael