Multiple output soundcard as crossover?

cdwitmer · 1st June 2003, 11:53 PM

Could a sound card with multiple outputs do double duty as a crossover? For example, if it has four outputs, use one for left channel Bass, one for left channel Treble, one for right channel Bass, and one for right channel Treble. The crossover frequency and sloping would be done inside the computer. Then the outputs could go directly into the power amplifiers for bi-amping of speakers. Doable?

Thanks!

Christopher Witmer

BenY · 2nd June 2003, 12:14 AM

Sure,
Please look in this link,

Here

Hope it helps,

Yuval

cdwitmer · 2nd June 2003, 01:19 AM

Thanks, Yuval. This "Soundeasy" program might just be what I'm looking for. Can this program work in conjunction with programs like WinAmp, Windows Media Player, etc., or is the crossover function only enabled when sounds are generated by the Soundeasy program itself? Will it work when sound is being input from external sources?

THANKS!

kiwi · 11th June 2003, 03:45 PM

Ditto.

I'd be really interested in getting something like that to work with jRiver's MediaCenter, while playing losslessly encoded audio.

One could even use a high end sound card with multiple channels.

-kiwi

DRC · 11th June 2003, 04:21 PM

Getting all the OP/s in sync might be a problem with standard sound cards (caching etc) - worth watching out for this. Should be enough CPU cycles to do it real time, with a decent box (depending on algorithm), - as an alternative the processing could be done 'offline' and saved to disk. Possible ? yes !!

Keep us posted if you make any progress ...

Dave

cdwitmer · 11th June 2003, 10:56 PM

Since I will soon have the equipment to do so, it will be interesting to do a compare of analog and digital (i.e., PC software) crossovers. I will have an old (pre-1980) but very well made and maintained analog active three-way crossover coming, and I have also got a LynxTwo-B card (two inputs and six outputs) so it should be possible to do some comparisons -- after I move up what I expect to be (for me, at least) a fairly steep learning curve. I have found online another person in Tokyo who is trying to do the same sort of thing, except two-way (bi-amping), and he is further along in his research than I am, so hopefully I can leapfrog off his back and get some meaningful results. I will keep folks here posted!

This diyAudio.com forum has been a great help, and so have several Yahoo! Groups, including: hifi_dsp, LynxONE, PAMS, SoundEasyuserslist, and TacTAudioUsersGroup .

Petter · 11th June 2003, 11:36 PM

I looked into this about a year ago, and was planning to do a project. I was planning to use software from National Instruments (Components under the Visual Studio Integration Program for Microsoft Visual Studio .NET and although quite costly to purchase at $1500 or so has no royalty for redistribution) which does the mathematical stuff.

Then there was a change in the Windows Media Player audio path, and I did not have access to programmers skilled in DirectX programming.

The project is definitely achievable, and there should be more than enough cycles to do this right.

Petter

MWP · 12th June 2003, 05:02 AM

Dont forget about:
http://www.ludd.luth.se/~torger/filter.html

And:
http://www.ludd.luth.se/~torger/brutefir.html

They are linux based though.

1st June 2003, 11:53 PM	#1
cdwitmer diyAudio Member Join Date: Apr 2003 Location: Tokyo	Multiple output soundcard as crossover? Could a sound card with multiple outputs do double duty as a crossover? For example, if it has four outputs, use one for left channel Bass, one for left channel Treble, one for right channel Bass, and one for right channel Treble. The crossover frequency and sloping would be done inside the computer. Then the outputs could go directly into the power amplifiers for bi-amping of speakers. Doable? Thanks! Christopher Witmer

11th June 2003, 04:21 PM	#5
DRC diyAudio Member Join Date: Jan 2003 Location: UK (south west)	But .... Getting all the OP/s in sync might be a problem with standard sound cards (caching etc) - worth watching out for this. Should be enough CPU cycles to do it real time, with a decent box (depending on algorithm), - as an alternative the processing could be done 'offline' and saved to disk. Possible ? yes !! Keep us posted if you make any progress ... Dave

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Active Crossover using PC and multi ch. Soundcard?	vision	Digital Source	21	19th May 2012 03:37 AM
active crossover from a pc soundcard?	bser	Digital Source	17	18th August 2005 03:19 PM
PC Soundcard/Multiple Channel questions...	RedShiftZ	Everything Else	2	18th June 2005 02:10 PM
decent pc soundcard with multiple outputs?	zag0r	Digital Source	6	10th May 2004 04:00 PM
multiple output from single soundcard	twill	Digital Source	0	4th February 2004 06:06 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	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

2nd June 2003, 12:14 AM	#2
BenY diyAudio Member Join Date: Jul 2002 Location: ISRAEL	Sure, Please look in this link, Here Hope it helps, Yuval

2nd June 2003, 01:19 AM	#3
cdwitmer diyAudio Member Join Date: Apr 2003 Location: Tokyo	Thanks, Yuval. This "Soundeasy" program might just be what I'm looking for. Can this program work in conjunction with programs like WinAmp, Windows Media Player, etc., or is the crossover function only enabled when sounds are generated by the Soundeasy program itself? Will it work when sound is being input from external sources? THANKS!

11th June 2003, 03:45 PM	#4
kiwi diyAudio Member Join Date: Oct 2002 Location: Vermont	Ditto. I'd be really interested in getting something like that to work with jRiver's MediaCenter, while playing losslessly encoded audio. One could even use a high end sound card with multiple channels. -kiwi

11th June 2003, 10:56 PM	#6
cdwitmer diyAudio Member Join Date: Apr 2003 Location: Tokyo	Since I will soon have the equipment to do so, it will be interesting to do a compare of analog and digital (i.e., PC software) crossovers. I will have an old (pre-1980) but very well made and maintained analog active three-way crossover coming, and I have also got a LynxTwo-B card (two inputs and six outputs) so it should be possible to do some comparisons -- after I move up what I expect to be (for me, at least) a fairly steep learning curve. I have found online another person in Tokyo who is trying to do the same sort of thing, except two-way (bi-amping), and he is further along in his research than I am, so hopefully I can leapfrog off his back and get some meaningful results. I will keep folks here posted! This diyAudio.com forum has been a great help, and so have several Yahoo! Groups, including: hifi_dsp, LynxONE, PAMS, SoundEasyuserslist, and TacTAudioUsersGroup .

11th June 2003, 11:36 PM	#7
Petter diyAudio Member Join Date: Jan 2001 Location: Scandinavia	I looked into this about a year ago, and was planning to do a project. I was planning to use software from National Instruments (Components under the Visual Studio Integration Program for Microsoft Visual Studio .NET and although quite costly to purchase at $1500 or so has no royalty for redistribution) which does the mathematical stuff. Then there was a change in the Windows Media Player audio path, and I did not have access to programmers skilled in DirectX programming. The project is definitely achievable, and there should be more than enough cycles to do this right. Petter

12th June 2003, 05:02 AM	#8
MWP diyAudio Member Join Date: Oct 2002 Location: Adelaide, South Australia	Dont forget about: http://www.ludd.luth.se/~torger/filter.html And: http://www.ludd.luth.se/~torger/brutefir.html They are linux based though.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)