I believe Adri has a point, although the discussion got confused a bit by the mention of 6-channel recordings.
To me, the most clear illustration is tremulants. Basically, a tremulant is a device to fluctuate the wind supply. By now, we all know the difference between sampled and modelled tremulants. It shows that tremulant (= wind supply) behavior can have a far more complicated an characteristic effect than can be modelled until now. One reason is that in practice, first the pipe is affected by the tremulant, and then the acoustics mixes in, while in a model, first the acoustics have been mixed in, and then the tremulant waveform is applied.
In a wind model, other effects should be included, for example the effect of playing certain pipes on other pipes, as explained by Adri. I presume these effects can be included in a model, to some extend. But how to capture these effects in Hauptwerk?
I think wind modeling will work best when applied to dry samples, followed by a convolution reverb. However, until now the drawback is that one convolution reverb is applied to all samples. This makes me wonder: what if the impulse response of each pipe is recorded separately, in addition to the dry sound of the pipe itself? Is Hauptwerk able to process such a recording? How realistic would it sound? And would this indeed enable more realistic tremulant and wind models?
To me, the most clear illustration is tremulants. Basically, a tremulant is a device to fluctuate the wind supply. By now, we all know the difference between sampled and modelled tremulants. It shows that tremulant (= wind supply) behavior can have a far more complicated an characteristic effect than can be modelled until now. One reason is that in practice, first the pipe is affected by the tremulant, and then the acoustics mixes in, while in a model, first the acoustics have been mixed in, and then the tremulant waveform is applied.
In a wind model, other effects should be included, for example the effect of playing certain pipes on other pipes, as explained by Adri. I presume these effects can be included in a model, to some extend. But how to capture these effects in Hauptwerk?
I think wind modeling will work best when applied to dry samples, followed by a convolution reverb. However, until now the drawback is that one convolution reverb is applied to all samples. This makes me wonder: what if the impulse response of each pipe is recorded separately, in addition to the dry sound of the pipe itself? Is Hauptwerk able to process such a recording? How realistic would it sound? And would this indeed enable more realistic tremulant and wind models?