3 Aug
2010
3 Aug
'10
11:11 p.m.
On 08/03/2010 09:38 PM, fons(a)kokkinizita.net wrote:
A separte VLF decoder is one of the features I want in
the next
generation Ambdec. The question I'm asking myself is how much
'configurability' this requires.
as far as i'm concerned, it would be cool to have some help creating a
"hybrid" matrix like i described to bearcat, to avoid having to run
separate ambdecs for tops and subs. the most important thing would be
another gain coefficient to match the subs to the tops, similar to what
you already have to tweak the two psychoacoustic bands.
It's no problem adding the
filters that would perform a 'perfect' split of VLF and the
rest. But then you have to consider the response of the units
themselves - many subs have their own filters, and the LF
response of the 'full range' speakers can't be assumed to be
really flat in the crossover region. A really good xover has
to take into account the response of the two systems it is
driving. All suggestions are welcome...
i don't think ambdec can do much about it, for the reasons you mention,
and for the fact that the subs will be physically misaligned wrt the
tops. so what we need is a delay (already there), and maybe, just maybe
some "+/-" buttons for the delay to help with a setup by ear, and a tone
generator that creates test signals in the critical overlapping band -
these could then simply be tuned for maximum loudness.
Another question to two (Joern and Fernando) AMB
nerds: does
a multicnannel AMB aware dynamics processor make sense ? When
would you use it ? I'm asking because one of the plugins I'm
developing could be exactly that.
oh, certainly. it would be divine to *not* be able to do evil sum
compression in ambisonics, ever, but sometimes, earthly matters require
it...
but my favourite solution to this approach would be for ardour to do the
right thing wrt side chaining (or at least allowing the chains to be
made manually). i'm told a3 can do it, and i'll be checking it out.
but yours would certainly a welcome addition to my tool chest.
ATM it's just compression
(with real RMS response), but the full version will have a
noise gate as well, Do you need such a thing ? Current plans
are that the full version will be mono/stereo only.
N-way side chaining would be cool, with just a single set of controls.
the interesting question is how the measuring should be done and the
orders interpreted. and here we go again, at normalisation and channel
order ;)