Quote:
Originally Posted by Ethan Winer  Room acoustics is linear |
Not quite... Air absorption capacity vs SPL will play a major role in how HF are behaving in the reverb room for example. And this will have a major influence on the quality/color of the reverb. The SPL vs "color of reverb" (so response) ratio there is for sure not 1:1, in particular in HF. Also, if you have more energy in the room... It takes more time for it to transform in heat etc... So it implies perception will be different.
It's like all treatment. Semi-rigid Rockwool for ex isn't behaving in a linear way at all. But no model can predict this today. What is clear is that only a certain amount of energy can be dealt with by this type of materials -
that we know. So it's important to keep this in mind whenever dealing with room acoustics.
Problem is that you can build all the equations that you want, you won't be able to put your finger on it. I discussed of this yesterday with a colleague, and he was stressing that in our field of physics, there is a real need to understand that we are dealing with partial info, based on "flawed" measurements (in the sense that you never get twice the same exact measurement even if 'conditions' are the same) and that a lot of what we do has to be dealt with carefully.
To get a good reverb in there you will need rather high SPL. And very low backgound noise if you want a good tail. Good pres, good mic with low noise.