[Ardour-users] Re: good quality reverb - brutefir!

From: Piotr Sawicki (pelle_at_plusnet.pl)
Date: 11/23/03 07:36 EST


From: Piotr Sawicki <pelle@plusnet.pl>
Message-id: <3FC0A9E6.5020209@plusnet.pl>
Subject: [Ardour-users] Re: good quality reverb - brutefir!
Date: Sun, 23 Nov 2003 13:36:54 +0100

Hi,

BruteFIR is very interesting, but its documentation is not sufficient to 
know how to
convolve filters that use impulse responses. I emailed Anders Torger and 
asked him to give some hints how to do it, but he replied:

Unfortunately, what you ask for is quite a lot of documentation, which I 
currently don't have time to do. It is a good idea to put it together 
sometime though, but I cannot do it now.


So, If You have succeded by using it as a reverb. It would be very 
usefull, to give some more hints, how to do it.

Thanks

Piotr

>Hi,
>
>Convolution was mentioned earlier in this thread. A while ago I experimented 
>with BruteFIR, which is a realtime convolution engine, and a few proprietary 
>impulse responses, with extremely good results. 
>It is every bit as good as the result on Windows or Mac (and it should be).
>
>There are though a few drawbacks with convolution. 
>- It consumes hefty amounts of CPU, it does put it to good use though :).
>- There are almost no freely available impulse responses.
>
>The biggest problem being the lack of impulses. If there where a library of 
>free impulses I could easily envision bruteFIR becoming a 
>"killer-application". 
>
>Mmmm, and a GUI for BruteFIR ofcourse.... BruteVerb ;) Mmmm.
>
>/Robert
>
>
>--__--__--
>
>Message: 2
>Date: Tue, 18 Nov 2003 11:52:08 +0100
>From: Piotr Sawicki <pelle@plusnet.pl>
>Subject: Re: [Ardour-users] good quality reverb on linux
>To: Patrick Shirkey <pshirkey@boosthardware.com>,
> ardour-users@lists.sourceforge.net
>
>U=BFytkownik Patrick Shirkey napisa=B3:
>
>  
>
>>Patrick Shirkey wrote:
>>
>>    
>>
>>>Piotr Sawicki wrote:
>>>
>>>      
>>>
>>>>Hi,
>>>>I would like to know Your opinions whether it is possible on linu=
>>>>        
>>>>
>x=20
>  
>
>>>>(not only ardour and ladspa) to achieve as good or better quality=
>>>>        
>>>>
> of=20
>  
>
>>>>sound by using reverbs and other mixing and mastering tools=20
>>>>comparing to waves plugins or tl audio plugins.
>>>>
>>>>        
>>>>
>>>There are two quite nice reverbs in the swh plugins package.
>>>
>>>      
>>>
>>You may also want to try out this app:
>>
>>http://qsynth.sourceforge.net/
>>
>>
>>
>>    
>>
>Yes, I'm going to try it, althoug I allready have tried fluidgui by K=
>en=20
>Ellinwood.
>Thanks
>
>
>
>
>--__--__--
>
>Message: 3
>From: Linium <intent@netpratique.fr>
>To: Robert Jonsson <robert.jonsson@dataductus.se>
>Subject: Re: [Ardour-users] good quality reverb on =?iso-8859-1?q?linux=0A?=
>Date: Tue, 18 Nov 2003 16:29:10 +0100
>Cc: ardour-users@lists.sourceforge.net
>
>On Mardi 18 Novembre 2003 10:58, Robert Jonsson wrote:
>
>  
>
>>There are though a few drawbacks with convolution.
>>- It consumes hefty amounts of CPU, it does put it to good use though :).
>>- There are almost no freely available impulse responses.
>>
>>The biggest problem being the lack of impulses. If there where a library of
>>free impulses I could easily envision bruteFIR becoming a
>>"killer-application".
>>
>>Mmmm, and a GUI for BruteFIR ofcourse.... BruteVerb ;) Mmmm.
>>
>>/Robert
>>    
>>
>
>I was reading the forums on Audiofanzine (a french music site), when i found a 
>thread about impulse reverb with a few links:
>
>http://noisevault.com/  <- the impulses are claimed to be free
>
>http://mediasoftware.sonypictures.com/download/step1.asp?catid=6  <- it is a 
>sony site i don't know how free it is...
>
>http://www.memi.de/echochamber/responses/index.html  <- it's in german 
>unfortunatly i have not enough knowledge to understand well what are the 
>legal statements...
>
>BTW there are already a convolution plugin by steve harris, could it suit for 
>the job ?
>
>On the other hand it is right that the VST plugins allows some sort of 
>tweakings, i don't know eactly how it is done, but it seems to foster the 
>need of getting more variations and flexibility from an impulse.
>
>Linium 
>
>
>
>--__--__--
>
>Message: 4
>Date: Tue, 18 Nov 2003 16:39:13 +0100
>From: Louis van Dompselaar <louis@dompselaar.org>
>To: ardour-users@lists.sourceforge.net
>Subject: Re: [Ardour-users] good quality reverb on linux
>
>  
>
>>http://www.memi.de/echochamber/responses/index.html  <- it's in german 
>>unfortunatly i have not enough knowledge to understand well what are the 
>>legal statements...
>>    
>>
>
>As far as I can tell, there aren't any such statement on that page.
>As it also links to a freeware VST plugin, I would assume the impulses
>are also free, but they may be of doubtful origin.
>I have an official Sound Forge, which also comes with impulses, but
>I am quite sure I'm not allowed to redistribute those...
>
>
>
>--__--__--
>
>Message: 5
>From: Robert Jonsson <robert.jonsson@dataductus.se>
>To: Linium <intent@netpratique.fr>
>Subject: Re: [Ardour-users] good quality reverb on =?iso-8859-1?q?linux=0A?=
>Date: Tue, 18 Nov 2003 16:43:24 +0100
>Cc: ardour-users@lists.sourceforge.net
>
>Tuesday 18 November 2003 16.29 skrev Linium:
>  
>
>>On Mardi 18 Novembre 2003 10:58, Robert Jonsson wrote:
>>    
>>
>>>There are though a few drawbacks with convolution.
>>>- It consumes hefty amounts of CPU, it does put it to good use though :).
>>>- There are almost no freely available impulse responses.
>>>
>>>The biggest problem being the lack of impulses. If there where a library
>>>of free impulses I could easily envision bruteFIR becoming a
>>>"killer-application".
>>>
>>>Mmmm, and a GUI for BruteFIR ofcourse.... BruteVerb ;) Mmmm.
>>>
>>>/Robert
>>>      
>>>
>>I was reading the forums on Audiofanzine (a french music site), when i
>>found a thread about impulse reverb with a few links:
>>
>>http://noisevault.com/  <- the impulses are claimed to be free
>>    
>>
>
>Great! I have to check it out. (the others also.)
>
>  
>
>>http://mediasoftware.sonypictures.com/download/step1.asp?catid=6  <- it is
>>a sony site i don't know how free it is...
>>
>>http://www.memi.de/echochamber/responses/index.html  <- it's in german
>>unfortunatly i have not enough knowledge to understand well what are the
>>legal statements...
>>
>>BTW there are already a convolution plugin by steve harris, could it suit
>>for the job ?
>>    
>>
>
>Convolution is an algorithm. When you convolve a signal you need a special 
>signal to apply with the algorithm. This signal, the impulse response, is 
>more or less a sampling of how a room "sounds".
>There are several engines that implement it one way or the other, including 
>Steve's plugin and BruteFIR. As I understand things though BruteFIR is in  
>another division, feature wise.
>
>/Robert
>
>  
>
>>On the other hand it is right that the VST plugins allows some sort of
>>tweakings, i don't know eactly how it is done, but it seems to foster the
>>need of getting more variations and flexibility from an impulse.
>>
>>Linium
>>    
>>
>
>
>--__--__--
>
>Message: 6
>Date: Tue, 18 Nov 2003 11:12:15 -0500
>From: Paul Winkler <pw_lists@slinkp.com>
>To: ardour-users@lists.sourceforge.net
>Subject: Re: [Ardour-users] good quality reverb on linux
>
>Message-ID: <20031118161215.GB1115@slinkp.com>
>Mail-Followup-To: Paul Winkler <pw_lists@slinkp.com>,
>	ardour-users@lists.sourceforge.net
>References: <E1ALxfj-0008Pj-00@sc8-sf-list2.sourceforge.net> <200311181058.38010.robert.jonsson@dataductus.se>
>Mime-Version: 1.0
>Content-Type: text/plain; charset=us-ascii
>Content-Disposition: inline
>In-Reply-To: <200311181058.38010.robert.jonsson@dataductus.se>
>User-Agent: Mutt/1.5.4i
>
>On Tue, Nov 18, 2003 at 10:58:38AM +0100, Robert Jonsson wrote:
>  
>
>>The biggest problem being the lack of impulses. If there where a library of 
>>free impulses I could easily envision bruteFIR becoming a 
>>"killer-application". 
>>    
>>
>
>google turns up some... e.g.
>http://www.cksde.com/p_6_250.htm
>
>And, have you tried these? (I haven't yet...)
>http://www.audioease.com/IR/
>You need a stuffit extracter...
>http://www.aladdinsys.com/downloads/files/stuffit520.611linux-i386.tar.gz
>... and then the actual impulses are some binary data that file(1)
>doesn't recognize.
>
>  
>




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