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Sound Reinforcement - Forums for Live Sound Professionals - Your Displayed Name Must Be Your Real Full Name To Post In The Live Sound Forums => Audio Measurement and Testing => Topic started by: Stelios Mac on June 12, 2017, 06:52:33 AM

Title: Does this exist?
Post by: Stelios Mac on June 12, 2017, 06:52:33 AM
Greetings everyone :)
I'm looking to experiment a bit with FIR filters on my monitors, and I was wondering if there's any FIR filter VST or RTAS plugins out there. Basically something that will import filters from FIR Designer and process the signal through them.
I can't seem to find anything... Is there anything out there you're aware of?
Cheers!
Title: Re: Does this exist?
Post by: Merlijn van Veen on June 12, 2017, 07:02:36 AM
Greetings everyone :)
I'm looking to experiment a bit with FIR filters on my monitors, and I was wondering if there's any FIR filter VST or RTAS plugins out there. Basically something that will import filters from FIR Designer and process the signal through them.
I can't seem to find anything... Is there anything out there you're aware of?
Cheers!

Google convolution plugins like LAConvolver (http://audio.lernvall.com/).
Title: Re: Does this exist?
Post by: Stelios Mac on June 12, 2017, 07:16:46 AM
Google convolution plugins like LAConvolver (http://audio.lernvall.com/).
Ohhhh
I didn't realize it would export impulse responses, Neat :)
Might get a license after all, looks like an awesome piece of software...
I think than answers my question, thanks!
Title: Re: Does this exist?
Post by: Mark Wilkinson on June 12, 2017, 04:25:54 PM
Maybe this ?     http://convolver.sourceforge.net/

Title: Re: Does this exist?
Post by: Stelios Mac on June 13, 2017, 02:21:35 AM
Maybe this ?     http://convolver.sourceforge.net/
Yeah, that should work well, thanks! :)
I made the mistake of posting this before I used the demo much. (I thought I had to find a VST that would accept text-defined filters)
I then realized the software can export the filters in the form of an IR WAV, I assume even my IR reverb plugins will work :)
Thanks again!
Title: Re: Does this exist?
Post by: Mark Wilkinson on June 13, 2017, 07:33:39 PM
Yeah, that should work well, thanks! :)
I made the mistake of posting this before I used the demo much. (I thought I had to find a VST that would accept text-defined filters)
I then realized the software can export the filters in the form of an IR WAV, I assume even my IR reverb plugins will work :)
Thanks again!

Great, glad it will work.   I was just guessing it might work for you...I'm not so literate here...

I've only used the 'Config File' part of Convolver,.......to direct either FIR Designer or rePhase files out of Jriver convolution, into an x-32 usb card.
Which, for playback, works great, and sounds awesome. 
http://convolver.sourceforge.net/config.html

You're gonna love FIR.      I mean, this 3-way active main was 90 min worth of work, from measurement of raw drivers individually to measurement of drivers corrected, and aligned together ...once you get the hang of it.....


Title: Re: Does this exist?
Post by: Stelios Mac on June 14, 2017, 05:57:17 AM
Great, glad it will work.   I was just guessing it might work for you...I'm not so literate here...

I've only used the 'Config File' part of Convolver,.......to direct either FIR Designer or rePhase files out of Jriver convolution, into an x-32 usb card.
Which, for playback, works great, and sounds awesome. 
http://convolver.sourceforge.net/config.html

You're gonna love FIR.      I mean, this 3-way active main was 90 min worth of work, from measurement of raw drivers individually to measurement of drivers corrected, and aligned together ...once you get the hang of it.....

:O
Seriously? That's a phase graph!?? And no smoothing on either of them? I'm speechless!
Title: Re: Does this exist?
Post by: Mark Wilkinson on June 14, 2017, 12:53:37 PM
:O
Seriously? That's a phase graph!?? And no smoothing on either of them? I'm speechless!

Haha thx!
Yes, it get's easy. Using a lot of smoothing becomes akin to fishing in a barrel :)
Title: Re: Does this exist?
Post by: Peter Morris on June 14, 2017, 10:50:38 PM
Haha thx!
Yes, it get's easy. Using a lot of smoothing becomes akin to fishing in a barrel :)

Hi Mark,

What box was that measurement from?   .....  ;)
Title: Re: Does this exist?
Post by: Mark Wilkinson on June 15, 2017, 12:26:59 PM
Hi Mark,

What box was that measurement from?   .....  ;)

Hi Peter,  it was from a superbly designed box that can't help but measure straight traces when tuned, even by a hack like me !!!   ;)

The measurement graph file says DIY60, but it's really the DIY90....
(I'm used to typing 60, because that's the horn I spent all my time learning on.
I think I mentioned on the other forum that I just converted my 2 boxes to 90 degree duty, and am building some new 60's.)

Anyway, the graph represents the first and only time I tried tuning the DIY90 with FIR.  Sounds very close to the 60 degree now.
Oh, and it's using the BMS xover btw

Many thanks yet again for such a great design !

Title: Re: Does this exist?
Post by: Don Davis on June 15, 2017, 05:48:56 PM
Hi Peter,  it was from a superbly designed box that can't help but measure straight traces when tuned, even by a hack like me !!!   ;)

The measurement graph file says DIY60, but it's really the DIY90....
(I'm used to typing 60, because that's the horn I spent all my time learning on.
I think I mentioned on the other forum that I just converted my 2 boxes to 90 degree duty, and am building some new 60's.)

Anyway, the graph represents the first and only time I tried tuning the DIY90 with FIR.  Sounds very close to the 60 degree now.
Oh, and it's using the BMS xover btw

Many thanks yet again for such a great design !

Mark, next time you're in Cali come by and help me tune mine ;-) Steak dinner on me!
Title: Re: Does this exist?
Post by: Mark Wilkinson on June 16, 2017, 01:14:47 PM
Mark, next time you're in Cali come by and help me tune mine ;-) Steak dinner on me!

Kind words Don, thx!   But I think I'm the one who still owes you the steak dinner for all the help you've given :)