dwk123 said:
Email me.
The DCX I have here is quite rough sounding compared to what I've got going with the PC at the minute. So it would be money well spent.
Just tried this and its inferior to the Curve EQ solution.
Pristine Space' high and low pass sections won't do what you need for a speaker XO. The filters only have finite roll off and then hit a brick wall and remain at that level instead of trailing off to zero output.
Thanks, the XO stuff is more interesting though 😉 🙂
ShinOBIWAN said:
Well, I don't know what type of tools Pristine Space has built in, but I was thinking more about the fact that it can use arbitrary filters loaded as WAV files. This way you need to use other tools to create the appropriate impulse responses, but have unlimited flexibilty. As I said, this is what folks using BruteFIR under Linux do currently, so it's not uncharted territory. It's not for everyone, though, as it typically takes Matlab/Octave or similar programming to tailor the filters.
dwk123 said:
I gotcha now, I was simply using the high/low pass filtering that it offers not creating tailored impulses.
Sounds like its more complicated than it needs to be, at least for me, Waves Linear EQ is quick and intuitive.
To be honest, I don't know as I'm only using 2 channels in and 2 channels out. But I do plan on going to 5 channel independent processing, and have been thinking about how to squeeze more juice out of the PC. Here is another stupid idea that I come up with while I was in the gym earlier today:
Can we simply pre-render all these VST processing into a multi channel Wav file? If so, we can just batch process all the regular Wav files, download and play the after-processed files. Will something like Samplitude do it?
i did some rendering on hi resolution files 96 and 192 k / 24 bit . got very good results , but in this way you loose flexibility and it takes 3 times more of disk space and no possibility of lossless compression , all 3 wav files (for 3 way stereo speaker system ) must be played using multitrack software , no more simple player like foobar .
Just for your information, a fulti channel convolver plugin is under development for Windpwm media player. This will be free of charge. No multi amp support as of now, but I hope we can shoe-horn it in somehow.
https://sourceforge.net/projects/convolver/
https://sourceforge.net/projects/convolver/
Yep have Waves C4.
I've just had a very quick look and it certainly looks good.
Are the filters FIR or IIR?
Have you compared the sound quality to lineEQ?
Cheers,
Ant
I've just had a very quick look and it certainly looks good.
Are the filters FIR or IIR?
Have you compared the sound quality to lineEQ?
Cheers,
Ant
waves linMB is linear phase for sure . playing with that right now . no final opinion about quality .
Vil said:
Sorry to say Vil but...
Linear Multiband has no way of adjusting the Q or slope of the XO, so its use is very limited.
After looking on the Waves website it appears C4 isn't linear phase but I haven't had chance to make any comparisons to the sound quality between it and LineEQ.
For now I'm still betting LineEQ is the most flexible and sonically superior.
Please post your thoughts if you get a chance to compare before me, I'll do likewise.
Cheers,
Ant
Shin ,
we are still working , so one of us know whats the best .thats the funest part of diy ... to create something (good) .
we are still working , so one of us know whats the best .thats the funest part of diy ... to create something (good) .
Looks like I'm too stupid to figure this out, anyway, what are you guys using this "convolution reverb" plugins for? Furthermore, why would you measure your home's "impulse"? Is it possible to use the plugin for lowering the reverb, if so, how??? thanks 
curva said:Looks like I'm too stupid to figure this out, anyway, what are you guys using this "convolution reverb" plugins for? Furthermore, why would you measure your home's "impulse"? Is it possible to use the plugin for lowering the reverb, if so, how??? thanks
Yes a convolution plugin is capable of being used to reduce room effects by around 30-50% according to the maths.
For it to work you need to take an accurate impulse response of your listening room. To do this you first need a sound that will provoke your rooms reverb, most use gun shots or electrical sparks or cracks. Then you need a good, no make that, great mic and pre-amp to record the sound.
Once this is done you can use a program such DRC etc. These create a calculated inverse of the originally impulse response recording. You load this into your convolution plugin and then pass your music through it. When sound emerges from your speakers, its been changed to cancel out some of your rooms influences.
Hi ShinOBIWAN,
Congratulations on your impressive project. It must require a huge input of effort and time. Would you take a little time out to check your private email (zeroex_15...) please. I sent on payment four weeks ago for crossover boards that you advertised on the "trading post" section of the forum. Nothing has arrived in the post in return and I haven't received any responses to the emails that I've sent you since. I would much prefer to get some direct feedback from yourself first (misunderstandings do happen after all) before I initiate a bank trace on the payment.
Thanks
Denis.
Congratulations on your impressive project. It must require a huge input of effort and time. Would you take a little time out to check your private email (zeroex_15...) please. I sent on payment four weeks ago for crossover boards that you advertised on the "trading post" section of the forum. Nothing has arrived in the post in return and I haven't received any responses to the emails that I've sent you since. I would much prefer to get some direct feedback from yourself first (misunderstandings do happen after all) before I initiate a bank trace on the payment.
Thanks
Denis.
Was there a consensus on a "budget" sound card? One that will work with multiple cards in one system? The RME sounds nice, but I don't want to buy 2 or 3!
Heh, I highly recommend trying out all this with a cheaper soundcard before you invest the big bucks. I just gave it a whirl with the Prodigy 7.1LT in a Athlon XP running at 2150MHz with 1GB ram. Although it did work, the sound was pretty choppy and it ate up every last bit of the CPU (that was running 1 CurveEQ, 3 LinearEQs, and 3 AudioDelays). This at least for me does not appear to be a real solution and I have a DCX2496 on order. KXProject would have been great if i was able to resolve some of the line-input noise problems I was having, perhaps with a different card....
ogp said:
How many channels do you need?
A single RME HDSP9632 comes with 2 analogue outs, with expansion boards its possible to have a maximum of 16 on a single card. For this you'd need the AO192S and AO8 expansions.
There also the HDSP9652 whoch will do 32 analogue outs on a single card with either external DAC's or 4 x AO8 expansion boards.
Aside from this there are other soundcards such as delta, creamware, Lynx which offer multiple cards but I'm totally unsure of any internal routing or multi client drivers.
m0tion said:
You definitely need a dedicated PC to make this reality, I use a 2.6Ghz P4 overclocked to 3.3Ghz that I had lying around after moving my main system over to an Athlon 64 4000+.
With this I use dedicated curveEQ on each channel along with 3 lineEQ's and 3 x Delays. Data transfer between the main PC and the XO PC is via 8 channel ADAT with Word clock Sync to an external clock, all cables are extremely short <30cm.
No problems and whatsoever with audio and latency is incredibly good - no need for extra compensation in the TT2.
BTW: Shame you didn't live in the UK - I just sold my virtually new DCX. A quick bit of advice, I'd strongly recommend using a 6 channel digital volume control with it other wise you'll be losing bits and dynamic headroom if you run the input signal at less than 0dB. It also tends to hiss on high sensitivity speakers because of this problem. Its an OK machine though if you get around its Pro audio idiosyncrases.
I've read about the 6-channel volume control thing and it seems a little more complicated than I'd like to get into. To be honest I was looking for a SIMPLE 3-way digital active xover solution, but I'm beginning to think that may be impossible =). I'm going to be using XLR -> RCA adapters with it, so I plan to do the -6dB mod to them (not sure if you've heard of this, you connect the pins differently and it gives -6dB gain on the outputs). Hopefully this will be enough to get around any nasty noises, but we'll see, I've been disappointed before. Any other recommendations to a reasonably priced solution would be very welcome.
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