Thanks for your reply Jörn. You´ll have to excuse my basic english sentences, 
as it´s not my primary language.

> "A-format" panning as you call it has nothing to do with ambisonics per se, 
> and the term frankly doesn't make much sense.
> the module you mention is a simple amplitude panner.
> 
> so for your purposes, you might want to look into amplitude panning.
> but this has none of the characteristics of ambisonics.

Yes, I know there´s no ambisonics until there is. The idea of amplitude 
panning, during A format stage, is to simplify an analogue path before b-format 
exists. Without plugins while possible. Soundfield B-format to 5.1 / 7.1 
converter (http://www.soundfield.com/products/sp451.php) is actually hardware, 
so it seems interesting to make analogue panners (anywhere, amplitude or B 
signals) to keep audio into an analogue path like this:

Quadraphonic (same to A-Format but without height?) keyboard or synth signals 
/// then an amplitude panner /// then the A to B converter /// then a B-format 
mixing stage /// the hole B-format mix to a Sounfield converter for 5.1 - 7.1 
or anything else.

> now you _could_ implement an ambisonic with-height b-format panner in analog. 
> likewise, i could have faxed you my reply in 2's complement, and you could 
> have OCR'ed it back into your computer. it's needlessly complicated, a waste 
> of resources, and unless the equipment is constantly being re-calibrated to 
> perfect accuracy, the result will be so full of errors that it's pretty much 
> pointless.

Well, if there is some kind of B-format analogue panner we would also like to 
learn about it´s design, so we can actually see how pointless it is. The idea 
of panning quadraphonic packs seems easier to implement BEFORE an A to B 
converter.
Does that exist?. I suppose something had to exist before DSP´s possibilities.
Thanks again.
Gino.

El 26/09/2013, a las 7:01, Jörn Nettingsmeier <netti...@stackingdwarves.net> 
escribió:

> On 09/26/2013 09:21 AM, Kan Kaban wrote:
>> Greetings to all Sursound list.
>> 
>> First of all, thanks for all this years supporting Ambisonics. We´re
>> a collective of audiovisual artists preparing for our next project.
>> We have been researching ambisonics for the last few moths, seeding
>> the possibility of it´s implementation. There are still some concerns
>> regarding workflow. Our initial idea is to keep signals / conversions
>> into the analogue domain.
> 
> erm?
> 
>> For example, analogue panners. I´ve stepped
>> with very few B-format ideas on the internet, so I was wondering if
>> there´s a case considering simple A-format panners, before AB
>> converters. This eurorack module seems right for the task, right?:
>> http://www.intellijel.com/eurorack-modules/planar/
> 
> "A-format" panning as you call it has nothing to do with ambisonics per se, 
> and the term frankly doesn't make much sense.
> the module you mention is a simple amplitude panner.
> 
> so for your purposes, you might want to look into amplitude panning.
> but this has none of the characteristics of ambisonics.
> 
>> But height
>> information?. Are B-format panners somehow better? We know of the
>> multiple ambisonics ITB plugins available, but again, we love ancient
>> analogue qualities. Any info will be very appreciated, we´re really
>> exited about this & will love to share the results somewhere in the
>> near future. Best regards. Gino.
> 
> for height, you will need vbap, and it's totally insane to even consider 
> doing this in analog (just think of the operation to find the three nearest 
> speakers for a given direction).
> 
> unless it's actually pain you love, in which case you've struck a gold mine.
> 
> now you _could_ implement an ambisonic with-height b-format panner in analog. 
> likewise, i could have faxed you my reply in 2's complement, and you could 
> have OCR'ed it back into your computer. it's needlessly complicated, a waste 
> of resources, and unless the equipment is constantly being re-calibrated to 
> perfect accuracy, the result will be so full of errors that it's pretty much 
> pointless.
> 
> -- 
> Jörn Nettingsmeier
> Lortzingstr. 11, 45128 Essen, Tel. +49 177 7937487
> 
> Meister für Veranstaltungstechnik (Bühne/Studio)
> Tonmeister VDT
> 
> http://stackingdwarves.net
> 
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