Windows based crossover/convolver

kappen · 9th February 2012, 10:20 AM

Hi.

Im new in this pc based convoler world and have only used dedicated DSP's so far. Im interrested in building a pc based crossoversystem.

My requirements:

1. 4/6 Channels
2. Convolving of my own impulseresponses from matlab (.txt / .dat) (FIR FILTER)
3. SPDIF output would be nice (for all channels)
4. Work with winamp or similar good player software
5. Windows based

Is this possible and/or does it exist?

qusp · 23rd February 2012, 03:50 AM

allocator

nuff said

kappen · 23rd February 2012, 08:08 AM

Hi.

Thanks for your answer.

Af far as i can read on their website, allocator only allows for IIR filters.

I need to use my own custom impulseresponse (FIR filter) as filter.

Henckel · 23rd February 2012, 09:57 AM

Convolver — a convolution plug-in

It will do FIR filter

Note Using HDMI to a surround receiver/preamp is a lot cheaper than getting multiple SPIF/AES out

qusp · 23rd February 2012, 10:24 AM

Quote:

Originally Posted by kappen

Hi.

Thanks for your answer.

Af far as i can read on their website, allocator only allows for IIR filters.

I need to use my own custom impulseresponse (FIR filter) as filter.

nope, it will do either. look more closely.

Boden · 23rd February 2012, 10:31 AM

Probably a very dumb question (and a bit off topic too) for PC-Audio affecionados, but is there any reason why one could (better) not use a standard quality sound cards such as e.q. Creative, Asus or M-Audio cards with Allocator or Sound Easy?

Kind regards,

Eelco

kappen · 23rd February 2012, 10:49 AM

qusp -> perhaps im just not looking carefully enough, but i really cant find anywhere on allocators website where it states that it can be used with custom FIR coefficients.

Henckel -> i will have a closer look on that one, do you use this yourself or are you familiar with the software?

Boden -> The most soundcards (even the cheap ones) today are far better than recorded material you play on them in terms of noise, dynamic range and distorition: they are also better than the rest of your audio chain including amplifier, speakers and so on.

qusp · 23rd February 2012, 02:21 PM

actually it might be his linux implementations for the sandy bridge chipset that use the FIR, but i do know he certainly is a fan of FIR brutFIR to be more specific. you can actually find some info here on the forum that allows you to basically run his most modern digi XO applications for free, using calls that directly access the sandybridge chipset's vector engine to do the calcs. i'll see if i can find some links for you tomorrow, its getting late here

dwk123 · 23rd February 2012, 02:42 PM

The easiest approach at this point may be JRiver V17. It has recently added a full convolution engine that can be used in both music and video applications. I haven't tried it yet, but assuming it works as expected it would seem to be the most attractive setup under Windows. It may have somewhat higher hardware requirements than something like a BruteFIR/Linux solution, though.

kappen · 23rd February 2012, 02:49 PM

dwk123 -> That sounds very appealing. I need to take a look on this JRiver tonight.

9th February 2012, 10:20 AM	#1
kappen diyAudio Member Join Date: Nov 2010	Windows based crossover/convolver Hi. Im new in this pc based convoler world and have only used dedicated DSP's so far. Im interrested in building a pc based crossoversystem. My requirements: 1. 4/6 Channels 2. Convolving of my own impulseresponses from matlab (.txt / .dat) (FIR FILTER) 3. SPDIF output would be nice (for all channels) 4. Work with winamp or similar good player software 5. Windows based Is this possible and/or does it exist?

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23rd February 2012, 03:50 AM	#2
qusp Sometimes a square peg fits a round hole just fine diyAudio Member Join Date: Oct 2009 Location: Brisbane, Australia	allocator nuff said

23rd February 2012, 08:08 AM	#3
kappen diyAudio Member Join Date: Nov 2010	Hi. Thanks for your answer. Af far as i can read on their website, allocator only allows for IIR filters. I need to use my own custom impulseresponse (FIR filter) as filter.

23rd February 2012, 09:57 AM	#4
Henckel diyAudio Member Join Date: Sep 2002 Location: Copenhagen, Denmark	Convolver — a convolution plug-in It will do FIR filter Note Using HDMI to a surround receiver/preamp is a lot cheaper than getting multiple SPIF/AES out

23rd February 2012, 10:31 AM	#6
Boden diyAudio Member Join Date: Mar 2010	Probably a very dumb question (and a bit off topic too) for PC-Audio affecionados, but is there any reason why one could (better) not use a standard quality sound cards such as e.q. Creative, Asus or M-Audio cards with Allocator or Sound Easy? Kind regards, Eelco

23rd February 2012, 10:49 AM	#7
kappen diyAudio Member Join Date: Nov 2010	qusp -> perhaps im just not looking carefully enough, but i really cant find anywhere on allocators website where it states that it can be used with custom FIR coefficients. Henckel -> i will have a closer look on that one, do you use this yourself or are you familiar with the software? Boden -> The most soundcards (even the cheap ones) today are far better than recorded material you play on them in terms of noise, dynamic range and distorition: they are also better than the rest of your audio chain including amplifier, speakers and so on.

23rd February 2012, 02:21 PM	#8
qusp Sometimes a square peg fits a round hole just fine diyAudio Member Join Date: Oct 2009 Location: Brisbane, Australia	actually it might be his linux implementations for the sandy bridge chipset that use the FIR, but i do know he certainly is a fan of FIR brutFIR to be more specific. you can actually find some info here on the forum that allows you to basically run his most modern digi XO applications for free, using calls that directly access the sandybridge chipset's vector engine to do the calcs. i'll see if i can find some links for you tomorrow, its getting late here

23rd February 2012, 02:42 PM	#9
dwk123 diyAudio Member Join Date: Feb 2002	The easiest approach at this point may be JRiver V17. It has recently added a full convolution engine that can be used in both music and video applications. I haven't tried it yet, but assuming it works as expected it would seem to be the most attractive setup under Windows. It may have somewhat higher hardware requirements than something like a BruteFIR/Linux solution, though.

23rd February 2012, 02:49 PM	#10
kappen diyAudio Member Join Date: Nov 2010	dwk123 -> That sounds very appealing. I need to take a look on this JRiver tonight.

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