Building a Target to be loaded into Dirac Full (beginners)

[ansat]

Ok, Time for some fun stuff.

So... I am not much of a fan of the GUI for building the targets. (pita to do exactly +6 at an exact frequency) So I have been building mine from scratch. In doing so, I found some goodies that are not available for those using the GUI.

To build a filter you need to start with a base template. Copy and paste the info below in a text document. (or grab the attachment)

#######################################################################
# Generated by Dirac Live for Emotiva V1.1.0 (Build 5958)
# Template for Dirac live targets.
#
# -- BREAKPOINTS - freq gain/loss --- ex 20 3.0 = 3db gain at 20hz
# ----- Must have 2 / 15hz - 20000hz / must be between HIGH/LOW LIMITS
#
# -- HPSLOPEON/LPSLOPEON High and low pass filters
# ----- 0 = 0ff 1 = On / must have values for CUTOFF and ORDER
#
# -- HPCUTOFF/LPCUTOFF HPF/LPF frequency
# ----- values ignored if SLOPEON = 0 / 15hz - 2000hz limit
#
# -- HPORDER/LPORDER slope (they appear to be Butterworth)
# ----- Higher the number the steeper the drop-off (starts to break at 12)
# ----- Since it acts fruit at 12 -- stating that 1-12 are the values
#
# -- LOWLIMITHZ/HIGHLIMITHZ are the curtains where dirac wont touch
# ----- 15hz - 20000hz limit / Set it higher or lower to have no curtain
#
#######################################################################
BREAKPOINTS
100 0.0
8000 0.0
HPSLOPEON
0
LPSLOPEON
0
HPCUTOFF
20
LPCUTOFF
60
HPORDER
12
LPORDER
6
LOWLIMITHZ
15
HIGHLIMITHZ
20000

Ok, -- looking at your text there is a whole bunch of info at the top that has # as the first character. This is called a comment and will be ignored by Dirac. If you want to add your own comments feel free to do so on a new line between the ####..... just be sure to insert a # as the first character. (Be careful with any punctuation as I am not sure if dirac is sensitive to it)

Lets get building! We are going to build a simple house curve with added bass and create a rumble filter.

So we are going to edit the BREAKPOINTS:
change the 100 0.0 to 20 6.0 and change 8000 0.0 to 120 0.0

So far you should have:

BREAKPOINTS
20 6.0
120 0.0

now add a new line after 120 0.0 and insert:
3000 0.0
15000 -3.0
19900 -6.0

Your file should now look like this:

BREAKPOINTS
20 6.0
120 0.0
3000 0.0
15000 -3.0
19900 -6.0
HPSLOPEON

So what we did is told it to create a line from 20hz +6 t0 120hz +0 to 3000hz +0 to 15000 -3 to 19900 -6. (we did 19900 since that value must be lower then the HIGHLIMITHZ)

Ok, house curve is done. nothing else to edit. Now to the rumble filter that we were going to add. A rumble filter is a steep dropoff to protect subwoofers from playing below a certain frequency. For this demo, we are going to create high pass filter at 19hz with a really steep roll-off. (can't be 20 since we have a BREAKPOINT at 20)

Go to:
HPSLOPEON
0
and change it to:

HPSLOPEON
1

The HPCUTOFF is set to 20, change it to 19 and should look like this:

HPCUTOFF
19

The HPORDER is already set to 12 (the steepest) and should look like this:

HPORDER
12

Ok, were all done. Save the file to a new name and lets load it into dirac.

In Dirac, link all your speakers by dragging each one over the top of your right speaker and click load target. Navigate to your saved file and load it. You should see a the curve that we created, but you will not see the rumble filter just yet. Dirac uses the points and ignores the HPF and LPF in this step. Click Create Filters and once they are loaded to the XMC you can now see the high pass filter that we created.

Enjoy!

Tony

Attachments:

template.txt (1.12 KB)

[ansat]

Quick part two which is a little more advanced.
Lets build something Just for the subs. Go ahead and keep everything from above - But this time we are going to set LOWLIMITHZ to 0, the BREAKPOINT 20 6.0 to 16 6.0 and the 120 0 to 150 6.0 and delete the 3000, 15000 and 1990 lines. Change the HPCUTOFF to 15. Set the LPSLOPEON to 1, LPCUTOFF to 150, LPORDER to 4 and HIGHLIMITHZ to 200.

You should have something that looks like this:

BREAKPOINTS
16 6.0
150 6.0
HPSLOPEON
1
LPSLOPEON
1
HPCUTOFF
15
LPCUTOFF
150
HPORDER
12
LPORDER
4
LOWLIMITHZ
0
HIGHLIMITHZ
200

Now we have created a +6 subwoofer filter with a 12 order rumble filter at 15hz and a 4th order at 150hz. We stripped the curtain on the low end to ensure that Dirac creates the rumble filter as low as it can.

Enjoy!

Tony

[Deleted]

Very cool Tony, I'll give this a shot tomorrow.
Using the new dirac full is it possible to do a good job on multiple subs now? Or is it still best to use a minidsp to time and phase align before eq?

[ansat]

Apr 4, 2015 0:04:56 GMT -5 fattykidd said:

Very cool Tony, I'll give this a shot tomorrow.
Using the new dirac full is it possible to do a good job on multiple subs now? Or is it still best to use a minidsp to time and phase align before eq?

I still like the minidsp, But being able to have a filter built into dirac in combination with using the X-over could yield some interesting and positive results. Time will tell (I don't have the time to do a bunch of playing right now. I am going on 4 months of 50-60h work weeks)

Tony

[socketman]

This is really great Tony. Dragging those PITA breakpoints around is difficult to be accurate.

[Deleted]

Apr 4, 2015 0:13:41 GMT -5 ansat said:

Apr 4, 2015 0:04:56 GMT -5 fattykidd said:

Very cool Tony, I'll give this a shot tomorrow.
Using the new dirac full is it possible to do a good job on multiple subs now? Or is it still best to use a minidsp to time and phase align before eq?

I still like the minidsp, But being able to have a filter built into dirac in combination with using the X-over could yield some interesting and positive results. Time will tell (I don't have the time to do a bunch of playing right now. I am going on 4 months of 50-60h work weeks)

Tony

I ask because my minidsp is out for repair right now so one of my ported subs is "sitting on the bench " so to speak until I get the opendrc back.. thanks for all you're doing here. Even with your uber long work hours. You're still contributing this A+ material.

[rogersch]

Thank you for sharing.
Yesterday I did fiddle around with adjusting the filter but it was a real PITA do to this on screen.
Next time I'll use a text editor to create a filter.


(Now it would be great if someone would make a program where can enter the filter data. Do some sanity checks and create the text file...)

[vcautokid]

Dirac is fun to tune, but yeah, have to try these coefficients.

[wilburthegoose]

Thanks!

[LuisV]

Nice... thanks Tony!

[tunatamer]

Thanks Tony!

As always, I appreciate your work and sharing...

[Thunderduck]

Just to be clear for us Morse Code guys (latest tech for me), is what you are doing here the same thing as a Dirac Project file or DPRJ file? I tried looking at the DPRJ files I created but was not able to open them. Don't know the correct program to do this.

If your file example is different from the DPRJ files, can you or someone else please advise what Folder the filter files are stored in? I would like to see what the Dirac created filters look like.

Thank you for the help.

Steve

EDIT: Looking in the APP Data folder, is this a Target file? I believe I missed something in the translation. What you are showing us is how to create our own Target file.  Since I have not created my own Target, this folder is empty in my APPDATA folder.

Old dogs and new tricks. Give me awhile and I will figure it out.

[ansat]

Apr 4, 2015 16:27:26 GMT -5 Thunderduck said:

Just to be clear for us Morse Code guys (latest tech for me), is what you are doing here the same thing as a Dirac Project file or DPRJ file? I tried looking at the DPRJ files I created but was not able to open them. Don't know the correct program to do this.

If your file example is different from the DPRJ files, can you or someone else please advise what Folder the filter files are stored in? I would like to see what the Dirac created filters look like.

Thank you for the help.

Steve

Stava
I think it's in the documents folder.

Tony

[Thunderduck]

Apr 4, 2015 16:38:11 GMT -5 ansat said:

Apr 4, 2015 16:27:26 GMT -5 Thunderduck said:

Just to be clear for us Morse Code guys (latest tech for me), is what you are doing here the same thing as a Dirac Project file or DPRJ file? I tried looking at the DPRJ files I created but was not able to open them. Don't know the correct program to do this.

If your file example is different from the DPRJ files, can you or someone else please advise what Folder the filter files are stored in? I would like to see what the Dirac created filters look like.

Thank you for the help.

Steve

Stava
I think it's in the documents folder.

Tony

Hi Tony,

I have nothing in my Documents folder that would be a text file, just those DPRJ files.  Would Dirac allow me to load a text file or when I save my own file would I use the DPRJ extension.  I must be missing something easy here.

[ansat]

Apr 4, 2015 16:41:27 GMT -5 Thunderduck said:

Apr 4, 2015 16:38:11 GMT -5 ansat said:

Stava
I think it's in the documents folder.

Tony

Hi Tony,

I have nothing in my Documents folder that would be a text file, just those DPRJ files.  Would Dirac allow me to load a text file or when I save my own file would I use the DPRJ extension.  I must be missing something easy here.

It's a just a text file. The drprj is the dirac project file. If you didn't save any filters then there would be nothing there.

[Thunderduck]

Apr 4, 2015 16:42:01 GMT -5 ansat said:

Apr 4, 2015 16:41:27 GMT -5 Thunderduck said:

Hi Tony,

I have nothing in my Documents folder that would be a text file, just those DPRJ files.  Would Dirac allow me to load a text file or when I save my own file would I use the DPRJ extension.  I must be missing something easy here.

Hi Tony,

I see you are mobile. My question can surely wait until you are in a more settled state. It can wait until you are less busy.

Thanks as always,

Steve

[Thunderduck]

Apr 4, 2015 16:42:01 GMT -5 ansat said:

Apr 4, 2015 16:41:27 GMT -5 Thunderduck said:

Hi Tony,

I have nothing in my Documents folder that would be a text file, just those DPRJ files.  Would Dirac allow me to load a text file or when I save my own file would I use the DPRJ extension.  I must be missing something easy here.

It's a just a text file. The drprj is the dirac project file. If you didn't save any filters then there would be nothing there.

Ok, last one. In the process of running Dirac, I need to save the filters it creates before saving the project. Going to have to run Dirac to see where I can do that. Shows you how observant I am. Tell you the truth, thought saving the Project was basically the same thing.

Will figure it out and I have your example above to give me a head start.

Thanks as always,

Steve

[nickwin]

Im getting a "read error" BREAKPOINTS expects two arguments error message when I try to load a curve. Any idea what Im doing wrong?

[ansat]

Apr 4, 2015 16:50:07 GMT -5 nickwin said:

Im getting a "read error" BREAKPOINTS expects two arguments error message when I try to load a curve. Any idea what Im doing wrong?

You have to at least have 2 breakpoints.

Tony.

[nickwin]

Apr 4, 2015 17:30:39 GMT -5 ansat said:

Apr 4, 2015 16:50:07 GMT -5 nickwin said:

Im getting a "read error" BREAKPOINTS expects two arguments error message when I try to load a curve. Any idea what Im doing wrong?

You have to at least have 2 breakpoints.

Tony.

Hmm, I was trying to use that harmon curve which had a bunch of breakpoints in it. Does it have to be a certain file type or anything?

Attachments:

Harmon curve.rtf (562 B)