On 10/15/2015 10:51 PM, Dave Malham wrote:
One of the things that should be investigated in conjunction with higher
order Ambisonics material would be to "fade down" the higher order
components as the frequency drops, thus spreading the bass over more
speakers, reducing the strain on the individual speakers whilst maintaining
the spectral balance - hey, wasn't that Richard Lee's Powered Integrated
Sub concept from several years ago?? Doesn't help with first order materiel
but....
<ears pricked up>
Intriguing idea, that. So we would apply zero-phase high-pass filters to
the second and higher components?
Should be nice for a test run, but how to keep latency down for live
electronics and A/V sync? How would we phase-align an IIR filter?
Allpasses on the lower components?
The spectral balance would be maintained despite the filters, since
we're in LF, where each new order "takes away" as much as it "adds", so
to say. Unlike at HF, where we have to add energies and any such
filtering throws the spectral balance of kilter, as Eigenmike users will
know...
--
Jörn Nettingsmeier
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Meister für Veranstaltungstechnik (Bühne/Studio)
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