Hello again!
   I wonder. I had such good luck and good quality with the hrtfstat opcode, 
that I consider using it for other 3D experiments. Usually I work with spat3d 
or something like it though. So I can have distance and reverbaration. What 
would be the best way to go from B-format to hrtf? Or should I reconsider my 
basic 3D-creation opcodes? What are your suggestions?
   Kindest regards & sorry, if I miss something obvious
           Julien

--------
Music was my first love and it will be my last (John Miles)

======== FIND MY WEB-PROJECT AT: ========
http://ltsb.sourceforge.net
the Linux TextBased Studio guide
======= AND MY PERSONAL PAGES AT: =======
http://www.juliencoder.de

>From B-format to binaural, I would decode the B-format to
whatever speaker setup is best, send each speaker feed to
a hrtf opcode with coordinates set to the correct speaker
position. That should work well.
Brian might have something more to say about this.

Victor
----- Original Message ----- 
From: "Julien Claassen" 
To: "csound mailing list" 
Sent: Monday, March 23, 2009 8:22 PM
Subject: [Csnd] 3D-sounds and conversions (between the formats)


> Hello again!
>   I wonder. I had such good luck and good quality with the hrtfstat 
> opcode, that I consider using it for other 3D experiments. Usually I work 
> with spat3d or something like it though. So I can have distance and 
> reverbaration. What would be the best way to go from B-format to hrtf? Or 
> should I reconsider my basic 3D-creation opcodes? What are your 
> suggestions?
>   Kindest regards & sorry, if I miss something obvious
>           Julien
>
> --------
> Music was my first love and it will be my last (John Miles)
>
> ======== FIND MY WEB-PROJECT AT: ========
> http://ltsb.sourceforge.net
> the Linux TextBased Studio guide
> ======= AND MY PERSONAL PAGES AT: =======
> http://www.juliencoder.de
>
>
> Send bugs reports to this list.
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe 
> csound" 

OK. But it's definitely B-format to speaker-setup to HRTF binaural.
   So Brian, or who ever has a good idea about that, which speaker setup would 
be best to get a good 3D-audio impression. The more the better?
   Kindest regards
          Julien

--------
Music was my first love and it will be my last (John Miles)

======== FIND MY WEB-PROJECT AT: ========
http://ltsb.sourceforge.net
the Linux TextBased Studio guide
======= AND MY PERSONAL PAGES AT: =======
http://www.juliencoder.de

Hi Julien,

You must also keep in mind that hrtf uses different localization cues
from spat 3d and ambisonics. while spat3d and ambisonics use mostly
amplitude differences, hrtf codifies phase and time information, so
there´s really no direct method of conversion.

Cheers,
Andrés

On Mon, Mar 23, 2009 at 3:22 PM, Julien Claassen  wrote:
> Hello again!
>  I wonder. I had such good luck and good quality with the hrtfstat opcode,
> that I consider using it for other 3D experiments. Usually I work with
> spat3d or something like it though. So I can have distance and
> reverbaration. What would be the best way to go from B-format to hrtf? Or
> should I reconsider my basic 3D-creation opcodes? What are your suggestions?
>  Kindest regards & sorry, if I miss something obvious
>          Julien
>
> --------
> Music was my first love and it will be my last (John Miles)
>
> ======== FIND MY WEB-PROJECT AT: ========
> http://ltsb.sourceforge.net
> the Linux TextBased Studio guide
> ======= AND MY PERSONAL PAGES AT: =======
> http://www.juliencoder.de
>
>
> Send bugs reports to this list.
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe
> csound"
>



-- 


Andrés

yes, I suppose, up to what you are willing to wait ;)
----- Original Message ----- 
From: "Julien Claassen" 
To: 
Sent: Monday, March 23, 2009 8:37 PM
Subject: [Csnd] Re: Re: 3D-sounds and conversions (between the formats)


> OK. But it's definitely B-format to speaker-setup to HRTF binaural.
>   So Brian, or who ever has a good idea about that, which speaker setup 
> would be best to get a good 3D-audio impression. The more the better?
>   Kindest regards
>          Julien
>
> --------
> Music was my first love and it will be my last (John Miles)
>
> ======== FIND MY WEB-PROJECT AT: ========
> http://ltsb.sourceforge.net
> the Linux TextBased Studio guide
> ======= AND MY PERSONAL PAGES AT: =======
> http://www.juliencoder.de
>
>
> Send bugs reports to this list.
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe 
> csound" 

Hey Victor!
   time is no issue, as long as the result is satisfying. :-)
   Btw.: Are there any other hrtfs useable with csound than those linked from 
the HRTF opcodes? I've just heard, that there are more and I was willing to 
test a bit.
   Warm regards
         Julien

--------
Music was my first love and it will be my last (John Miles)

======== FIND MY WEB-PROJECT AT: ========
http://ltsb.sourceforge.net
the Linux TextBased Studio guide
======= AND MY PERSONAL PAGES AT: =======
http://www.juliencoder.de

Hi,

Do you mean impulse responses or opcodes?

Cheers,
Andrés

On Mon, Mar 23, 2009 at 4:14 PM, Julien Claassen  wrote:
> Hey Victor!
>  time is no issue, as long as the result is satisfying. :-)
>  Btw.: Are there any other hrtfs useable with csound than those linked from
> the HRTF opcodes? I've just heard, that there are more and I was willing to
> test a bit.
>  Warm regards
>        Julien
>
> --------
> Music was my first love and it will be my last (John Miles)
>
> ======== FIND MY WEB-PROJECT AT: ========
> http://ltsb.sourceforge.net
> the Linux TextBased Studio guide
> ======= AND MY PERSONAL PAGES AT: =======
> http://www.juliencoder.de
>
>
> Send bugs reports to this list.
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe
> csound"
>



-- 


Andrés

I meant: Where can I get more csound-compatible impulse-responses?
   Thanks and regards
          Julien

--------
Music was my first love and it will be my last (John Miles)

======== FIND MY WEB-PROJECT AT: ========
http://ltsb.sourceforge.net
the Linux TextBased Studio guide
======= AND MY PERSONAL PAGES AT: =======
http://www.juliencoder.de

I think the problem is creating the format Csound expects. I think it
is a raw file which contains all the impulse responses. To use another
set, you´d have to get the impulse responses together taking up the
same length.
I´m mostly guessing though...

Maybe someone has done this? I haven´t heard about it...

Cheers,
Andrés

On Mon, Mar 23, 2009 at 6:25 PM, Julien Claassen  wrote:
> I meant: Where can I get more csound-compatible impulse-responses?
>  Thanks and regards
>         Julien
>
> --------
> Music was my first love and it will be my last (John Miles)
>
> ======== FIND MY WEB-PROJECT AT: ========
> http://ltsb.sourceforge.net
> the Linux TextBased Studio guide
> ======= AND MY PERSONAL PAGES AT: =======
> http://www.juliencoder.de
>
>
> Send bugs reports to this list.
> To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe
> csound"
>



-- 


Andrés

Hi,
I am glad the HRTFstat opcode is working well!
Yes, decoding to loudspeaker and 'hrtfing' each loudspeaker can give very
interesting results. Accuracy/efficiency issues still relate to the
spatialisation algorithm chosen.
I am currently investigating a tool for various spatialisation methods,
loudspeaker setups, room parameters and dynamic source/receiver behaviour
using the dynamic HRTF opcodes.
The data files use the MIT KEMAR HRTFs, stored spectrally (for efficiency).
Any replacement file would need to contain the same number of spectral HRTFs
of the same length, measured at the same points, arranged in the same way
etc. Unfortunately, this is not the case in, for example, the CIPIC HRTFs.
Brian
-- 
View this message in context: http://www.nabble.com/3D-sounds-and-conversions-%28between-the-formats%29-tp22668311p22677509.html
Sent from the Csound - General mailing list archive at Nabble.com.

Hello Brian!
   Thanks for the explanations. So I'll try my hand at this technique b-form to 
speaker setup to HRTF. Good enough for me, for a while. :-)
   Kindest regards
          Julien

--------
Music was my first love and it will be my last (John Miles)

======== FIND MY WEB-PROJECT AT: ========
http://ltsb.sourceforge.net
the Linux TextBased Studio guide
======= AND MY PERSONAL PAGES AT: =======
http://www.juliencoder.de