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Multi-Way Conventional loudspeakers with crossovers

Free Digital Room Correction And PC based Xover
Free Digital Room Correction And PC based Xover
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Old 6th August 2009, 01:11 AM   #1
kipman725 is offline kipman725  United Kingdom
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Default Free Digital Room Correction And PC based Xover

Hi It's posible to do digital room correction and crossovers without buying anything software wise. Hardware (mesurment mic, soundcard with many outputs) still needed. Anyway it took me a while to find this and I couldn't find any threads from a quick search so just making it easier for people to find this stuff.

Can make digital crossovers and perform DRC. Quite easy to use as well.

foobar 2000 with convolve plugin:
Import the .wav file containing the output of ACXO into this plugin

Instructions on how to build a cheap high performance measurement mic:

So far I have tried this only with DRC on some cheap PC speakers (as I managed to damage the woofer of my usual speakers) but the result is a definite improvement. Not sure of the quality of this aproach Vs. the pro audio stuff that has a thread already but I can't see why there should be a quality difference is IIR filters are used for crossover and FIR for DRC which seems logical. There do apear to be some issues with ACXO and non 44.1Khz sample rates.
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Old 6th August 2009, 09:47 AM   #2
MaVo is offline MaVo  Germany
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Isnt the f2k convolver only stereo? That would mean, no crossover possible, only DRC.
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Old 6th August 2009, 04:54 PM   #3
Ron E is offline Ron E  United States
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There is an opensource package called DRC that uses BruteFIR to do this. http://www.duffroomcorrection.com/wiki/Main_Page
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Old 7th August 2009, 12:13 PM   #4
fb is offline fb  Australia
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There are free VST plugins and hosts capable of doing both correction and crossover - you just need a soundcard capable of the necessary signal routing (RME works for me). Last I looked fb2k's vst host plugin was stereo only.

Other software to look out for:

VSThost/SAVIhost - VSThost can do semi-modular routing between VSTs

Has some very useful plugins/tools, including crossover/filter generators -

Free convolution plugin-
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