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Room Correction with Plugin and Measurement

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Uploaded by on Mar 1, 2011

How to use Room Eq Wizard to measure your room to generate Eq filters/settings, and then input those settings into the Apulsoft ApQualizr plugin.
Also how to do realtime analysis...
Note: that the predicted EQ results REW shows in its EQ window are obtained by applying the chosen filters to the measured impulse response, and include the effects of non-minimum phase behaviour, so they accurately portray the results that would be obtained at the point the measurement was taken. IN the video, you will see(and hear) some clipping in the SPL meter calibration screen. That is because I am talking close to the microphone, causing overs/clipping. During actual measurement, there is no clipping. CHECK YOUR LEVELS...
ANOTHER NOTE: The FFT resolution is also affected by the Window setting. Rectangular windows give the best frequency resolution but are only suitable when the signal being analysed is periodic within the FFT length or if a noise signal is being measured. The Rectangular window should always be used with the REW periodic noise signals.

Apulsoft ApQualizr Plugin: http://www.apulsoft.ch/apqualizr/index.php
Room Eq Wizard: http://www.hometheatershack.com/forums/rew-forum/

You can also use the plugin from Aixcoustic Creations "Electri-Q". Follows the bandwidth/octave rule, and has other selectable options.

You can also, under filter tasks in REW, set lower boost levels, and measure the left and right seperately. Create filter assignments for those in REW, then enter the left filter adjustments into the plugins left side, and the right measurements into the right side of the plugin. This will only work in Apulsoft Apqualizr(LR Stereo Mode), not in Aixcoustics plugin.

room measurement room correction eq equalization equalizer how to correct room correction room analysis analyze room response plugin
room measurement room correction eq equalization equalizer how to correct room correction room analysis analyze room response plugin
room measurement room correction eq equalization equalizer how to correct room correction room analysis analyze room response plugin
room measurement room correction eq equalization equalizer how to correct room correction room analysis analyze room response plugin
room measurement room correction eq equalization equalizer how to correct room correction room analysis analyze room response plugin
room measurement room correction eq equalization equalizer how to correct room correction room analysis analyze room response plugin

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Uploader Comments (Dozerbeatz)

  • AFTER ANALYSIS YOU MUST TREAT YOUR ROOM AND NOT USE CORRECTIVE EQ.

    Ethan Winer is THE authority on Room analysis and acoustic treatment etc, he has tens of thousands of posts across several forums giving people his free expert advice on all such matters. To find the relevant page on his website, just go to google and type in "Realtraps audyssey" and click the top result. Hope this helps everybody.

  • @andymc24 I speak on this in the video. Eq is not a substitute for room correction.

  • This shows one aspect of room acoustics, that is "frequency domain". Another major important area is "time domain".

Top Comments

  • lol at the dog humping the bed.

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All Comments (11)

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  • @Dozerbeatz you are right..!! i think phase correction is much more important

  • Hi,

    did you have to calibrate your ecm8000?

  • BTW...if u choose Generic EQ, the q is displayed in #.##. Are those the same numbers as "semitones" when adjusting the bandwidth of a parametric eq band in Patchmix? THX

  • @Zer0n3 look up some RTAS EQ's...isnt that what ProTools uses?

  • Wow thanks man...that was honestly the longest youtube video I ever sat thru!

    Some questions though...how do u get Cubase to play the PN and measure in RTA? I cant do both at the same time...u have 2 soundcards?

    Also, Why don't u just put those EQ filters in Patchmix? I have an EMU 0404 PCI and I can add eq filters to the ASIO output to monitor Cubase.

    THANKS AGAIN!!

  • Im using Pro tools and since apqualizr is in vst format it's not possible to use it. Do you know any alternative plug-in?

  • great stuff.

    just finished building 2470x1000x400 mm superchunks filled with rockwool sonorock for the two vertical front corners of my room.

    i still have room modes at 40 and 80 hz (4x4m room here) but they have a significantly shorter decay than before.

    maybe i can help killing them with a master EQ a bit.

    anyway, thanks for posting this.

    will have to watch this again a several times before i finally understood everything :>

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