Is there any PC based software to crossover the L & R channels to the sub?

spot · 23rd October 2011, 02:15 AM

I am putting together a PC based 5.1 system for movies and music.
It would work out very well if I could get the PC to crossover the lower frequencies from the front left and right channels and direct them to the sub.
Is there any software available that can do this?

raindog · 23rd October 2011, 09:22 AM

Hello spot,
first, the LFE ( sub ) channel on the soundcard is active only when the soundcard is set for 5.1 ( or 7.1 ) output . I don't know of any standalone software that can take the sound from another app and do an upmix to 5.1 , but there are plugins - like ''channel mixer'' for foobar - that can do that , you just have to look for a plugin / add-on for the software that you use. Also most 5.1 systems ( at least the ''PC'' type ) have a built-in filter / mixer for the subwoofer ( so you get some bass even in stereo mode ).

dangus · 3rd November 2011, 05:15 AM

Maybe AC3Filter can do that.

An M-Audio Delta 410 PCI card that I was thinking about getting has bass management built into the card, with selectable crossover frequency. There's some used ones on eBay now for a reasonable price, with the necessary breakout cables, if you're in the US (seller only ships UPS). I'd buy one but UPS tends to add crazy brokerage fees when delivering in Canada.

phofman · 3rd November 2011, 06:20 AM

Quote:

Originally Posted by dangus

An M-Audio Delta 410 PCI card that I was thinking about getting has bass management built into the card, with selectable crossover frequency.

Just a note, the bass management is built into the driver, the card itself does no DSP. It has only Envy24 and codecs.

http://media.zzounds.com/media/brand...a5c7bc1d7a.jpg

ENSen · 15th November 2011, 06:46 PM

For Linux there is a program called BruteFir that can be used for crossover and other types of filtering like digital room correction (DRC).

theAnonymous1 · 15th November 2011, 06:55 PM

See if Thuneau Frequency Allocator fits your needs.

artvipinosa · 18th November 2011, 02:01 PM

i think what you need is to replace your Sound card.. what you want depends on your sound card....other cards usually emulate only the output of 5.1 speaker system

the cheapest pci card i have is the CMI 5.1 PCI sound Card it has output for SUb and i'm not happy with that.

this is what i have on my PC now.... Logitech 5.1

boris81 · 18th November 2011, 02:44 PM

I'm almost certain that the kx-project drivers for the Creative Audigy 2 sound cards can do it. I don't know how it is done exactly and it might take some effort on your part to figure it out. They do have a surround sound processor module so it might be as easy as routing the correct inputs/outputs.

NED1955 · 21st November 2011, 09:30 AM

Hi Spot,

I now use the Media Player Classic with AC3 filter exclusively for all music and video. AC3 filter let you set up your speakers, in my case I have a 4.1 system. You can set up bass redirection and the cut off frequnecy. It also has a facility to create your own matrix to redirect the front channels to the surround speakers.
Media Player Classic and AC3 are free downloads so you'll lose nothing by trying them out.

Cheers

Ned

spot · 23rd November 2011, 09:56 AM

Quote:

Originally Posted by NED1955

... AC3 filter let you set up your speakers, in my case I have a 4.1 system. You can set up bass redirection ....

Thanks, AC3filters Bass Redirection feature is the solution.

The docs do say that sound cards can come with this feature (only use one at a time).

23rd October 2011, 02:15 AM	#1
spot diyAudio Member Join Date: Sep 2011	Is there any PC based software to crossover the L & R channels to the sub? I am putting together a PC based 5.1 system for movies and music. It would work out very well if I could get the PC to crossover the lower frequencies from the front left and right channels and direct them to the sub. Is there any software available that can do this?

15th November 2011, 06:55 PM	#6
theAnonymous1 diyAudio Member Join Date: Feb 2004 Location: Anonymityville	See if Thuneau Frequency Allocator fits your needs. __________________ "If you don't like funerals don't kick sand in Ninja's face." - Ninja

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23rd October 2011, 09:22 AM	#2
raindog diyAudio Member Join Date: May 2003 Location: Timisoara	Hello spot, first, the LFE ( sub ) channel on the soundcard is active only when the soundcard is set for 5.1 ( or 7.1 ) output . I don't know of any standalone software that can take the sound from another app and do an upmix to 5.1 , but there are plugins - like ''channel mixer'' for foobar - that can do that , you just have to look for a plugin / add-on for the software that you use. Also most 5.1 systems ( at least the ''PC'' type ) have a built-in filter / mixer for the subwoofer ( so you get some bass even in stereo mode ).

3rd November 2011, 05:15 AM	#3
dangus diyAudio Member Join Date: May 2004 Location: Vancouver Island	Maybe AC3Filter can do that. An M-Audio Delta 410 PCI card that I was thinking about getting has bass management built into the card, with selectable crossover frequency. There's some used ones on eBay now for a reasonable price, with the necessary breakout cables, if you're in the US (seller only ships UPS). I'd buy one but UPS tends to add crazy brokerage fees when delivering in Canada.

15th November 2011, 06:46 PM	#5
ENSen diyAudio Member Join Date: Dec 2010	For Linux there is a program called BruteFir that can be used for crossover and other types of filtering like digital room correction (DRC).

18th November 2011, 02:01 PM	#7
artvipinosa diyAudio Member Join Date: Nov 2011	i think what you need is to replace your Sound card.. what you want depends on your sound card....other cards usually emulate only the output of 5.1 speaker system the cheapest pci card i have is the CMI 5.1 PCI sound Card it has output for SUb and i'm not happy with that. this is what i have on my PC now.... Logitech 5.1

18th November 2011, 02:44 PM	#8
boris81 diyAudio Member Join Date: Oct 2009 Location: white plains, ny	I'm almost certain that the kx-project drivers for the Creative Audigy 2 sound cards can do it. I don't know how it is done exactly and it might take some effort on your part to figure it out. They do have a surround sound processor module so it might be as easy as routing the correct inputs/outputs.

21st November 2011, 09:30 AM	#9
NED1955 diyAudio Member Join Date: Nov 2011	Hi Spot, I now use the Media Player Classic with AC3 filter exclusively for all music and video. AC3 filter let you set up your speakers, in my case I have a 4.1 system. You can set up bass redirection and the cut off frequnecy. It also has a facility to create your own matrix to redirect the front channels to the surround speakers. Media Player Classic and AC3 are free downloads so you'll lose nothing by trying them out. Cheers Ned

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