Free Digital Room Correction And PC based Xover - diyAudio
Go Back   Home > Forums > Loudspeakers > Multi-Way

Multi-Way Conventional loudspeakers with crossovers

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 6th August 2009, 01:11 AM   #1
diyAudio Member
 
kipman725's Avatar
 
Join Date: Jun 2007
Location: London/N.lincs
Send a message via MSN to kipman725
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.

ACXOplayer:
Can make digital crossovers and perform DRC. Quite easy to use as well.
http://pcazeles.perso.cegetel.net/acxo.htm

foobar 2000 with convolve plugin:
Import the .wav file containing the output of ACXO into this plugin
http://www.foobar2000.org/components

Instructions on how to build a cheap high performance measurement mic:
http://www.linkwitzlab.com/sys_test.htm

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.
  Reply With Quote
Old 6th August 2009, 09:47 AM   #2
MaVo is offline MaVo  Germany
diyAudio Member
 
Join Date: Jan 2006
Location: Herne
Isnt the f2k convolver only stereo? That would mean, no crossover possible, only DRC.
  Reply With Quote
Old 6th August 2009, 04:54 PM   #3
Ron E is offline Ron E  United States
diyAudio Member
 
Ron E's Avatar
 
Join Date: Jun 2002
Location: USA, MN
There is an opensource package called DRC that uses BruteFIR to do this. http://www.duffroomcorrection.com/wiki/Main_Page
__________________
Our species needs, and deserves, a citizenry with minds wide awake and a basic understanding of how the world works. --Carl Sagan
Armaments, universal debt, and planned obsolescence--those are the three pillars of Western prosperity. Aldous Huxley
  Reply With Quote
Old 7th August 2009, 12:13 PM   #4
fb is offline fb  Australia
diyAudio Member
 
Join Date: Apr 2005
Location: Brisbane, Aus
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
http://www.hermannseib.com/english/vsthost.htm



Has some very useful plugins/tools, including crossover/filter generators -
http://www.ohl.to/


Free convolution plugin-
http://convolver.sourceforge.net/vst.html
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
DIY DSP for Digital Room Correction OzOnE_2k3 Digital Source 114 17th June 2008 08:25 PM
Low latency room correction + xover in mini-itx fb Digital Source 8 22nd May 2008 09:50 AM
Audyssey MultEQ XT Digital Room Correction wigginjs Multi-Way 37 24th February 2008 06:10 PM
I need help with digital Room-correction Radian Multi-Way 1 7th February 2007 07:10 PM


New To Site? Need Help?

All times are GMT. The time now is 01:55 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2