[LAU] placement.

[alex stone]

Jorn, Fons, my continued thanks for the help and shared knowledge.

Alex.

On Wed, Jan 21, 2009 at 2:16 AM, Jörn Nettingsmeier <
nettings at folkwang-hochschule.de> wrote:

> alex stone wrote:
> > A question here gentlemen.
> >
> > With an WXYZ setup, what do those represent? Left/Right/Front/Rear?
> > So any signal in would be a composite of position based on the strength
> > of gain between 2 or more points?
>
> are you familiar with M/S stereo miking? if not, get a figure of eight
> and play with it. it's great to control the stereo width of a recording
> during mixdown. once you've got a feel of the concept (matrixing a fig8
> and a mono signal), add two more fig8s for up/down and front/back, and
> there you go: first-order ambisonics.
>
> in practise, soundfield mikes work differently because you can't squeeze
> four capsules into the same point, but after some wizardry, the
> microphone's output (called a-format) is converted into WXYZ b-format,
> which is exactly m/s extended to 3d: a mono component W, a left/right
> difference signal X, and front/back and up/down difference signals Y and Z.
>
>
> best,
>
> jörn
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.linuxaudio.org/pipermail/linux-audio-user/attachments/20090121/239fd88f/attachment.htm