win7 streaming one output to another

[ppp0001]

I am using Audigy1 with KX drivers as PC crossover, and thats working fine.. as long as i use analog outputs. I am using panny sa-xr700 as amp and it would be a shame to convert signals to analog, so they can be converted back to digital inside amp 🙂

And problem comes when i want to send stream from KX drivers (3 way XO, done by DSP, so 6 channels) over ATI HDMI OUTPUT via LPCM.

I'm struggling with this problem over 2 weeks, all the software I tried, like Virtual Audio Cable, but Im unable to put audigy dsp between, so crossover works.

Is there any way to stream output stream from one soundcard to another output on windows7?

sorry for my english, and thanks in advance🙂

 

[boris81]

Is there any way to stream output stream from one soundcard to another output on windows7?

Not really. You need custom virtual audio drivers and I haven't been able to find any in years of searching. People usually use a hardware loopback - a wire from the output of one sound card to the input of another.

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It's great to hear from a fellow kx-project user. I love it, I have since discovered better sound quality elsewhere but the value for the price and the flexibly of the platform is incredible.
I don't think I understand exactly what you are doing. Could you please write a step-by-step description of your signal path.

I use Audigy ZS2. It has only analog multichannel outputs. I don't think you can output multichannel digital with those boards, only stereo. I also doubt your receiver can accept multichannel digital, just stereo. Ideally you will be bypassing all signal processing in your receiver and just using it's amps. Multichannel analog in straight to the amps, no signal conversion should be happening there, just volume control.

Your signal path should be something like this:
Computer music player -> kx-project driver -> DSP crossover -> Audigy multichannel analog out -> receiver multichannel analog in -> receiver amps -> speaker drivers.

 

[ppp0001]

Hi Boris81, thanks for reply
Agree, kx is great and powerfull, what i like most is crossover done 100% by audigy dsp.
My post might be bit confusing so I try to straighten things up.
I'm currently thinking about 2 ways of achieving my goal - full digital path with active crossover:
1. kx driver -> kx dsp ( from 2 channels i get 6-8 channels with 3-4 way crossover) -> ... (thats what im looking for - virtual device or software loopback) -> amd radeon hdmi out (6-8 digital channels via lpcm) -> panasonic sa-xr700
2. virtual device (like VAC) -> VST HOST with crossover plugin ->amd radeon hdmi out (6-8 digital channels via lpcm) -> panasonic sa-xr700
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Ideally you will be bypassing all signal processing in your receiver and just using it's amps

That's exacly what I want to do 🙂
crossover on analog outputs works fine, and i need 3 way crossover at least (I have 4 way speakers), but there is unneeded digital to analog on audigy out and analog to digital on reciever in conversion.
Whats worse with analog connection i can to only 2 way crossover.
Panny is 7.1 reciever with 6ch analog input, and one of them is subwoofer - that aint amplified, signal from that input goes straight to linear output for active sub, so I have 5 analog channels availible for my XO.

So i need to use HDMI to use Surround back speakers, no way to do it analog on this reciever

I don't think you can output multichannel digital with those boards

Exacly, thats why i want to use amd HDMI as output

 

[phofman]

IMO the performance of EMU10k2 in Audigy1 is dwarfed by modern CPUs. IMO it is a waste of time to try fto eed the multiple streams generated by the audigy DSP back to the PC (it would most likely require changes to the existing dsp code). I would go for route 2 directly.

 

[boris81]

Only option 2 is currently possible.

Although kx-project allows you to easily rewrite and re-route the DSP, the Audigy boards themselves don't support digital multichannel outputs, only analog. Even if you find a virtual audio driver (I haven't) it won't be able to take digital multichannel outputs from the Audigy board because they don't exist, only stereo.

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If you can't get option 2 working consider a loopback wire instead of a virtual driver and a software DSP.

Option 3
1. Configure the Audigy DSP for straight playback (no crossover).
2. In Windows select the Audigy SPDIF OUT as your Default Playback device.
3. Connect a short wire from SPDIF OUT to SPDIF IN on the Audigy.
4. Have VST Host always running. It should take signal from Audigy SPDIF IN, process for crossover, route to 8 channels and output to AMD Radeon HDMI OUT.
5. Connect an HDMI cable from AMD to your receiver.
6. Put the receiver in Multichannel In (LPCM) mode.

 

[ppp0001]

Even if you find a virtual audio driver (I haven't) it won't be able to take digital multichannel outputs from the Audigy board because they don't exist, only stereo.

There is at least one virtual audio driver - 'Virtual Audio Cable' and its working multichannel, but the problem is I can only route input from one soundcard to other soundcard output, no output to output. Or I can select the virtual device as default in windows, then i can route all the audio from that virtual device to any physical output.
But i can't pass it through kx drivers/audigy dps then, or I dont know how.

So, if theres a program/driver that lets capture stream from input and send it to any input, then it should be possible to do the same with output.

And that would be perfect solution for me, Kx based crossover works great, no latency at all. I tried also Frequency Allocator as crossover, but it has almost 1 sec latency so its only good for playing music, and I want to use my speakers for movies, youtube also