[LAD] Ambisonic Effect processing

[Fernando Lopez-Lezcano]

On 01/10/2012 04:07 PM, Harry van Haaren wrote:
> Hi everyone,
>
> I'm currently thinking about how to process B-format ambisonic signals.
> For basic compression, gating, expanding, limiting etc things are
> relatively simple: process all 4 of the W,X,Y and Z signals.
>
> But what bout effects like Reverb: Should that effect only be applied to
> the W signal? This will change the signal's direction due to the
> unrelated-ness between the signals. But appling reverb to the
> directional components will smear any sudden changes in location, or am
> I missing something here?
>
> I'm applying most effects in mono before doing the B-format encode,
> perhaps all effects like reverb should be placed before that encoding?

One data point:

http://freeverb3.sourceforge.net/doc/AmbiSym09-JosephAndersonSeanCostello-AmbiReverbArch.pdf

-- Fernando