A how to for a PC XO.

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mige0
What about AudioTester time domain files - did you take a closer look on these files?
AudioTester also would have the advantage over ARTA that there is *no* 1/24 octave smoothing you can't get rid of.

The TD files saved by AudioTester have a resolution of only two digits behind the decimal point. This for sure is not enough.

The pulse responses I have exported from ARTA do not show any smoothing. Maybe the ARTA FFT plots ...
 
Sound cards

My short list of sound cards for computer audio incorporating digital crossovers and speaker/room correction:

New AudioTrak Prodigy 7.1 hifi $112 shipped. 108 dB SN plus internal connections. Maybe poor support in the US?
http://www.audiotrak.net/products/prodigy71hifi/

New Asus Xonar D2 $155 shipped. 118dB SN plus all output cables included.
http://www.zipzoomfly.com/jsp/Produc...tCode=10007018

Used M-Audio Firewire 410 about $160 shipped Probably good microphone preamp with phantom power.

Anyone have experience with these or knowledge? I need to buy the Audiotrak soon if it is the one. Thanks for your help
Ted
 
Advantage of PC XO

Using foobar_2000 with the crossover component active it takes seconds to try a crossover setting. Also high order crossover costs nothing compared to high cost of passive high order; however, must be very careful if no tweeter protection. I have my tweeters on a channel that never gets Windows sounds. I may build a passive crossover for the tweeter to give better protection but no problem so far.
 
Re: Advantage of PC XO

ted4412wilt said:
I have my tweeters on a channel that never gets Windows sounds.

On Windows XP under Control Panel -> Sounds and Audio Devices -> Sound Scheme choose "No Sounds".

Its a good idea to have multiple sound cards in a crossover PC. Set the non-crossover sound card to be Windows default device. That way you won't have any surprise sounds being sent to your tweeter on accident.
 
Tweeter safety

A major advantage of going with a full fledged Console setup is that the system only sees the console inputs ahead of the filters, so you'd have to have some kind of freaky system error for any sound to go unfiltered. But you can hardly beat foobar crossover for simplicity.
 
Thanks, I have free VSTs including linear phase eq etc.. (reaplugs).

What I'm hoping for is something to measure system response and generate filters for me, both for crossover and room correction.


I know of audiolense and acourate - hoping to avoid spending that much money.



🙂 :smash:
 
Settings xp, fireface mixer and fireface?

Hello

I´m new at PCXO so i´m going to need some help if its possible..🙂

I wonder how to set it up in windows, console, fireface, and fireface mixer. Detailed info would be great..🙂

What settings should i use?

I have got it working in stereo, but how do I get 5 channels from windows into the fireface mixer?

Settings for clockspeed and bitdepth in console, fireface and windows?

How to get the mic to work?

This is how i have done it so far.

An externally hosted image should be here but it was not working when we last tested it.
 
uli.brueggemann said:
Is Acourate really that expensive?
Cheaper than a high-end Ethernet cable. Or other audio cables. Or other audio voodoo.

Count all the hours necessary to collect the knowledge, to program the stuff and to support customers.

It is strange that many people expect to get especially software for free but wasting money for other stuff. :whazzat:


Sorry Uli, I don't mean to devalue your product. I hope to purchase it one day but with the exchange rates the way they are it's a little way down the list. In the meanwhile, something free would be better than nothing 🙂



And no, I don't own any expensive cables 😀
 
The problem with PC Xover

I have looked at Acourate which looks great but the difficulty I am still having is with the hardware. The Bruteifr memeory stick looks promising and I have used brutefir and I'm comfortable with Linux but still it needs an ADAT or other 6 or 8 channel interface. I have thought of the Behringer ADA8000 but I am not sure how it would work.

The Behringer DCX2496 has been used by several as a self contained active crossover. I would like someone to show me a fairly straight forward and inexpensive hardware setup that can accept 2 channel analog and digital input and process it with Acourate and output 3 or 4 channels per side for an active setup.

To make Acourate more accessible Uli needs to provide hardware or detailed instructions for a crossover PC
 
To make Acourate more accessible Uli needs to provide hardware or detailed instructions for a crossover PC

Please understand that it is a bit difficult for me to talk about the hardware as different users may have different opinions about their ideal system.

So I recommend the RME setup but that's easy for me as I'm running fully digital including the amps (digital amps with digital input).

Of course RME also allows to run multiple DACs but at this point you may complain about the high prices.

But e.g. a M-Audio Delta 1010LT soundcard is also supported. The spblinux version with BruteFIR also contains the ALSA driver for such a soundcard. So you get 10 channels analog out for much less money.
It is no problem to select a proper soundcard driver as long as the soundcard is supported by ALSA. To check this please visit http://www.alsa-project.org/main/index.php/Matrix:Main

I hope this helps.
 
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