'Perceive' Contruction Diary

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#261
Vil said:
beautiful . how is ir possible to screew ATC dome not going thru holes from speaker front ?my ATC drivers are waiting for cabinet too.
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They're just screwed in from the rear instead of the front. I used some 1" 4.8mm self tappers. They don't fit the threads of the ATC mounting but I use large washers to provide a stable footing.

Just a quick note to make sure you don't choose screws which are too long and end up comming out through the front - that wouldn't be good at all.

Its fiddly but worth it IMO.

curva said:

flexibility, that is the word...
nothing compares to being able to rip all you cd's, compress them lossless to flac or ape or anything else and listen to anything you want without touching no cd at all.
then you got all thos wonderful professional plugins(they are really pro) and pair it with a decent ASIO card and bingo...
BTW, what do you use for ASIO routing? Is that an application that came with the prodigy card or it's a 3'th party app? I used to use winamp paired with a directx plugin adapter for being able to use some plugins, but that's far from what I want. That ASIO router of yours looks really cool 🙂
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I think you may have me and Vil mixed up. Perhaps I've been replying to posts intended for Vil.

But to answer your questions, the ASIO/VST/DX plugin host me and Vil use is called Console:

http://www.console.jp/eng/en_about.html

I don't actually use a Audiotrak Prodigy soundcard but Vil does, instead I have an RME HDSP 9632 with the add-on boards for more channels.

m0tion said:
OT:

Does anyone know if the Behringer DCX2496 unit has a turn on thumb? My real question is I suppose, if I power cycle the Behringer unit while my power amps are on, will this probably destroy the tweeter in my speakers? I'm not using any passive filtering on any of the drivers. I know this is slightly off-topic, but there are DCX2496 users participating in this thread and I was hoping someone could confirm or deny that this is a problem to look out for.
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The Behringer is a dangerous machine when using tweeters unprotected.

I've read a post on here regard someone destroying some Aurum Cantus G2's after powering on the behringer whilst the amps were on.

The thump is quite severe and I'd always recommend turning it on first and off last. Or better still just leave it on 24/7.
 
#262
jleaman said:
This flip flop paint that is pruple blue and red is the same on my friends truck.. just to add NOT CHEAP PAINT EITHER!!!
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It isn't cheap, £260 for 1ltr and that makes 1.5ltr after thinning. Thats just for the pearl coat, you still need to add the basecoat and clearcoat.

Altogether you can expect to pay £350 for all the paint required to paint a pair of cabinets this size.

The paint I bought comes from these folks:

http://www.rage-extreme.com

And here's a few of their other stuff:

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ogp said:
Sorry, I was a bit vague. I wasn't planning on having 3 subs. That does bring up another question though. If I have stereo subs, do I need to connect them individually or can they be connected to one output with a y-cable when doing parametric eq?
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You'll need a very minimum of 12 channels for 5.1, it looks like this:

3 channels for left main (3-way)
3 channels for right main (3-way)
3 channels for center (3-way)
1 channel for left rear (passive)
1 channel for right rear (passive)
1 channel for LFE

So that's 12 channels needed in total.

Start wanting stereo subs and it goes up further.

I really wouldn't advise just processing the fronts (L,C,R) and leaving the subs and surrounds to an external processor. Best to keep it all in the PC to avoid sync issues.
 
#265
ogp said:
Would I be able to use something like an M-Audio Delta 410 and run my fronts and center as active 3 ways with a parametric eq on my sub(s) while running my surrounds passively?
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ShinOBIWAN said:
You'd need 12 outputs to do what your wanting. Not if this is possible on the M-Audio 410.
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Delta drivers support up to four cards, or 32 analog + 8 digital channels. You can even mix and match, e.g. Delta 410 for the surround and the much superior Delta 1010 for the mains.

ShinOBIWAN, I assume that your techniques require a card with multiclient drivers; you must be routing the directsound driver inputs to the the ASIO inputs, and disabling the directsound outputs?

Does anyone know for a fact that the M-audio Delta drivers support this?
 
#266
edjosh23 said:
Wow, those look amazing!
How many hours of sanding did it take for the boxes to look so good, especially with the finish, it should be easy to find any imperfections?

Josh
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Quiet a few hours, next time I build I'm using void free plywood as MDF requires a lot of preparation to achieve a good sprayed finish.

Its actually taken longer on the finishing than the construction.

tiroth said:
ShinOBIWAN, I assume that your techniques require a card with multiclient drivers; you must be routing the directsound driver inputs to the the ASIO inputs, and disabling the directsound outputs?
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Yes the RME drivers are multiclient. I also use internal routing to move the signals around, the Prodigy which is a cheaper card also has multiclient and internal routing if anyone is interested in trying this out on a budget.
 
#267
the most important thing is to have posibility to route digitaly sound from wave driver to ASIO and then back to card's out . just few cards can do this . RME latest ones , creamware , egosys (audiotrack), maybe a couple more . m-audio don't have that option , at least for a moment .
 
#270
m0tion said:
ShinOBIWAN:

Could you please post a screenshot of your CONSOLE setup?
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I'll recycle Vil's shot of console routing scheme, with the exception of the limiters and input/output assignments, mine is identical:

attachment.php
 
#271
Hi, I saw your post on how you use Console and various VST's in your speaker
project, and since I have a computer as my source for my current speakers I
decided to download Console and some various VSTs (Right now I am trying
GlissEQ).

How do you get this to work exactly? Can console work if the same computer is
the source and the output, or do you have to have a seperate source to feed into
the line in, which gets processed and pushed out the line out?

Does that make any sense?
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I received this email from bjackson.

Rather than answering this via email I thought it better to put it up here so as others may read and gain information.

Right, well you really want a card that affords internal routing of signals whilst still in the digital domain. Why? Well you can route these physically through a line out than back in through the line-in if you use the PC as source and XO but this costs you in both outputs used/wasted and more importantly one digtal-analogue conversion and another analogue-digital conversion when the signal comes back into the card.
So really you need a card that offers internal routing such as an Audiotrak Prodigy, RME Hammerfall series or Creamware.
 
#273
there is my fast modification of Audiotrack Prodigy card .
I found 4 I2S data signals onboard and transmitted them thru CAT6 cables to external DAC's .

Also there is located low jitter oscillator for clocking of everything .
 

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#276
m0tion said:
Would the Delta 1010LT be a good candidate for use with CONSOLE and VST plugins? Also, what kind of processor would be needed to 3-way crossover, equalise, etc a stereo audio stream with a seperate subwoofer audio stream? Would an Athlon XP 2800+ w/ 1GB ram do it?
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Difficult to say, looking at the website they hint that the card may have internal routing: "software driven patchbay/router"

You really need to ask a dealer some questions to be fully sure otherwise it might not do what you need.

I can say that Audiotrak cards and RME HDSP cards all have internal routing for sure. Others have suggested Creamware does to. You'll also need a card that is multiclient - again the RME and Audiotrak cards do this.

Regarding CPU power, I'd certainly say the more the better. Even better still would be a dedicated box if you plan to use the XO with games, DVD's and external inputs.
 
#278
Also, what kind of processor would be needed to 3-way crossover, equalise, etc a stereo audio stream with a seperate subwoofer audio stream? Would an Athlon XP 2800+ w/ 1GB ram do it?
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probably, if you do eq before crossover. Of couse, you can do eq after crossover, and every channel will have its own eq, but you will use up a lot more processing cycles.

For those who want to move the PC with noisy fans to another room, or those who need to add more processing cycles to their audio system, one solution is

http://www.fx-max.com/fxt/

Run the big computer with noisy fans in a separate room via a LAN, and control the VSTs using a computer with no fan, say something with mini-itx form factor.
 
#279
>>>>>Just wondering if anyone here tries a software based routing instead of using the soundcard to reroute signals. I found this VST host that will do routing to multiple channels.

thats something like Console , but with this you still need any sound card with possibility to route from wave to> ASIO and> analog out . its just one way to do this without sound card support - Virtual Audio Cable . but it works not good , and no 24bit support (at least for a moment).

software solutions for ASIO FX are :

Cubase SX 1,2,3
Nuendo 1 , 2 , 3
Logic 5
SpinAudio Virtual Mixing Console
ARTeknika Console
SpinAudio AsioFX
Xlutop Chainer VST

after testing ALL of those , I found the best one for Xovers:

ARTeknika Console

bad things about console :
there is no autoload of last project and procesing on option at Windows start , so for this I wrote script (please read my post few pages ago) .
 
#280
>>>For those who want to move the PC with noisy fans to another room, one solution is http://www.fx-max.com/fxt/

no thats not a solution .

I have totally no noise PC with enought cpu power up to 96k/24bit FIR . my point of view :

take Pentium M cpu ~1.6-2,13 ghz .
use Asus ASUS CT-479 CPU Upgrade Adapter - http://forums.legitreviews.com/about1570-0-asc-0.html
reduce CPU power voltage to 1V - 1.1V (works without any problem at ~2ghz)
reduce Cpu fan speed to ~700-900rpm (thats NO NOISE AT ALL)
use fanless power supply
use notebook HDD for less noise .
use acoustic damping stuff insigt computer case
use 40x4 LCD display for foobar2000 monitoring
use something like Girder +com port receiver for remote control
use low jitter master clock generator <- very important !
use good sound card (or made right modifications on cheap one)
use ape or wav or other lossless sound format recordings
use good quality DAC's
use good quality amps
use good quality speakers
use good quality cables
think about mains voltage filtering
AND ENJOY THE SOUND
thats my system . sounds just great (but works still in progress)
 
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