Finally we're closing in on the real shape for a line array...
These look way more as expected! Were these done inside or out?
My guess would be inside judging the response and the differences left and right.
Let the fun begin! I bet EQ-ing a straight line will sound much better now
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Did you do left/right EQ separately to make the left and right more equal?
Serious output to 30 Hz! You're planning subs later right? I think I will as well,
say 3 of them a la Geddes...
These look way more as expected! Were these done inside or out?
My guess would be inside judging the response and the differences left and right.
Let the fun begin! I bet EQ-ing a straight line will sound much better now
.Did you do left/right EQ separately to make the left and right more equal?
Serious output to 30 Hz! You're planning subs later right? I think I will as well,
say 3 of them a la Geddes...
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These were made inside, in their intended location. L/R distance 3m and both were pointed directly at sweetspot. Mic at ear level at sweetspot, similar distance as L/R. Rear wall is only 1m behind.
I didn't have much time to spend so did only a brief L & R separate sweep before trying to even out the SPL with EQ. I did not do EQ per speaker, only both on the fly. I will however when I find time do one speaker at the time.
Brief listening test gave very promising impressions
For the extra curious ones the Array v3-file is available for download at www.halair.com/rew
Yes, I am considering woofer support later on Considering 2x6,5" in a TL configuration per side...
I didn't have much time to spend so did only a brief L & R separate sweep before trying to even out the SPL with EQ. I did not do EQ per speaker, only both on the fly. I will however when I find time do one speaker at the time.
Brief listening test gave very promising impressions
For the extra curious ones the Array v3-file is available for download at www.halair.com/rew
Yes, I am considering woofer support later on
Considering 2x6,5" in a TL configuration per side...
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That looks excellent for no EQ'ing!
I bet it sounds good based on the data I know what this sounds like - one of the best speakers you have heard probably. That is pretty good HD performance too for some no-name drivers. (or were these Vifa TC9FD's?)
Congrats!
So was it your computer that was causing problems with the measurement?
That looks excellent for no EQ'ing!
So was it your computer that was causing problems with the measurement?
Actually that was with a quick and dirty EQ
Legend says EQ=1 Attached image show each side without any EQ.
Yes, apparently the sound card in my Macbook was causing this (or the combination of REW/Umik-1) Different sweeps of the arrays, the B&W`s and the MB itself all showed similar artefacts while the iMac showed none. So I redid the tests with the iMac.
The array use 20x Vifa TC9`s each, wired in 5 groups of 4 = 6.4ohm nominal impedance.
My Ashly AEQ btw add to much background noise however, it need to go...
Thank you
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Don't forget that REW can suggest EQ settings for you based on the measurements. I think there's even a way to have the graphic EQ points at the fixed frequencies with fixed Q (don't know for sure though). Otherwise it will suggest PEQ cuts/boosts for you.
The DEQ2496 doesn't get mentioned as a native EQ but it's crossover enabled brother DCX2496 is in the list.
I'd make sure to have several measurements per speaker at the listening position in a cubic space and average those to apply the EQ for that averaged
response.
The DEQ2496 doesn't get mentioned as a native EQ but it's crossover enabled brother DCX2496 is in the list.
I'd make sure to have several measurements per speaker at the listening position in a cubic space and average those to apply the EQ for that averaged
response.
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Yep, I also like what I see, and I can only guess the arrays sound just as good.
The low end is indeed impressive, and follows all the reports I've read on the web about those VIFAs in arrays.
A sub or two will help smooth it out, and help the VIFAs perform even better by limiting the range of frequencies they will operate.
You can try to get as flat as possible for EQ, and then, don't forget to tweak according to your taste. Your ears and what you like to hear is more important than the flattest line.... in my case anyway.
The low end is indeed impressive, and follows all the reports I've read on the web about those VIFAs in arrays.
A sub or two will help smooth it out, and help the VIFAs perform even better by limiting the range of frequencies they will operate.
You can try to get as flat as possible for EQ, and then, don't forget to tweak according to your taste. Your ears and what you like to hear is more important than the flattest line.... in my case anyway.
Today I bought to bales of 70mm thick (Close to 3") Rockwool Flexi-A plates and placed them around in the room. Each bale had 8 sheets of 3x24x48" and this is my attempt to acoustically treaten my HT-room.
Clapping test showed great reduction on reverb so this was money well spent (less than 100bucks)
I also did some new sweeps after crude placement of the Rockwool, REW-images attached. The mdat file is at EQ vs NoEQ
Images show EQ vs No EQ SPL, EQ TDH and Waterfall. Mic at 1m height at sweetspot.
With the Rockwool placed out and after doing a few sweeps fine tuning the EQ the improvement in SQ was dramatic - this is by far the best setup I have listened to Chills...
Clapping test showed great reduction on reverb so this was money well spent (less than 100bucks)
I also did some new sweeps after crude placement of the Rockwool, REW-images attached. The mdat file is at EQ vs NoEQ
Images show EQ vs No EQ SPL, EQ TDH and Waterfall. Mic at 1m height at sweetspot.
With the Rockwool placed out and after doing a few sweeps fine tuning the EQ the improvement in SQ was dramatic - this is by far the best setup I have listened to
Chills...Attachments
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It's always nice to hear about line array speaker results.Got to take the LA´s outside today
No EQ performed for these tests.
The complete set of mdat-file is found here - http://halair.com/rew/Outside.mdat
If anyone knowledgable with REW could try to interpret the finer details I would appreciate that, in case I have missed some quality to these measurement
Nearest reflective surface is minimum 5m away.
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There are a number of condenser mics available with a USB plug.
One that I know to be really nice for the price is the Blue Yeti mic. Awesome ratio price / sound quality. Has different pick up modes, cardioid, figure 8, stereo and omni.
Of course, if it's only for this measure, than it's not worth to invest in such a mic. If you record a musical instrument, or podcast, then it's worth it.
If not, ask around. You may have a friend that owns a condenser mic
One that I know to be really nice for the price is the Blue Yeti mic. Awesome ratio price / sound quality. Has different pick up modes, cardioid, figure 8, stereo and omni.
Of course, if it's only for this measure, than it's not worth to invest in such a mic. If you record a musical instrument, or podcast, then it's worth it.
If not, ask around. You may have a friend that owns a condenser mic
This is what I would get.
http://www.amazon.com/gp/aw/d/B003QKBVYK?pc_redir=1410063207&robot_redir=1
http://www.amazon.com/gp/aw/d/B003QKBVYK?pc_redir=1410063207&robot_redir=1
Thank you for your suggestions guys
Once the room have the acoustic panels in place I will pursue a HQ recording and post here, schedule is too tight at the moment and I need to stay focused on the room itself. The arrays are working wonderfully so now is the time to tweak their surroundings
Completed 4 panels today an prefabricated the parts for 3 more, in the morning I´ll get more materials and if time willing I should have all wall panels done (12ish). Corner traps to be dealt with after that. Will update with pics soon, need to tidy up the place first hehe!
Once the room have the acoustic panels in place I will pursue a HQ recording and post here, schedule is too tight at the moment and I need to stay focused on the room itself. The arrays are working wonderfully so now is the time to tweak their surroundings
Completed 4 panels today an prefabricated the parts for 3 more, in the morning I´ll get more materials and if time willing I should have all wall panels done (12ish). Corner traps to be dealt with after that. Will update with pics soon, need to tidy up the place first hehe!
Quick OT-image update
Have completed the frames for the last batch of panels, I now have 4 that are done (no pics yet), 9 that only lack upholstery and 3 as shown in the last image. Got to keep cranking when the opportunity is in place...
Also did a Waterfall comparison before/after adding Rockwool to the room:
<300hz / no smoothing and the ambient dB-floor is just above 40.
Red = Before / Purple = After
Have completed the frames for the last batch of panels, I now have 4 that are done (no pics yet), 9 that only lack upholstery and 3 as shown in the last image. Got to keep cranking when the opportunity is in place...
Also did a Waterfall comparison before/after adding Rockwool to the room:
<300hz / no smoothing and the ambient dB-floor is just above 40.
Red = Before / Purple = After
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Quick OT-image update
Have completed the frames for the last batch of panels, I now have 4 that are done (no pics yet), 9 that only lack upholstery and 3 as shown in the last image. Got to keep cranking when the opportunity is in place...
Also did a Waterfall comparison before/after adding Rockwool to the room:
<300hz / no smoothing and the ambient dB-floor is just above 40.
Red = Before / Purple = After
Dang, that's a pretty dramatic improvement in those waterfalls! I bet it's sounding pretty awesome at this point.
Yes, +1 on the awesomeness of the improvement. The room is more than half the equation for good sound. I think that might be why my experience with the Trynergy has been so eye opening - the directionality of the tractrix reduces room effects and the sound is cleaner and less colored with reverberations. Nicely done Halair.
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