[Vorbis-dev] Ambisonics in Ogg Vorbis

[xiphmont at xiph.org]

On 4/27/07, Gregory Maxwell <gmaxwell at gmail.com> wrote:
> On 4/27/07, xiphmont at xiph.org <xiphmont at xiph.org> wrote:
> > (eg, the FAQ doesn't answer a few simple questions like 'should I be
> > using monopole speakers, or are bipoles better like in other
> > systems?')
>
> Yech. Other than a few (possibly crazy?) people, no one recommends
> dipole speaker for ambisonic playback... they don't work, at least
> mathematically.  There has been some argument based on a few people's
> experience that in some rooms they might work okay, but it's not
> entirely clear why.

Not dipole.  Bipole; an attempt at builing an omnidirectional radiator
(really, it's a 'cheap' way of avoiding baffle step, at least assuming
the driver isn't most of your cost ;-).  Two drivers pointing way from
each other doing push/push not push/pull.

So most people use monopoles?

Monty