-When I set a source aperture very narrow (10 deg), set yaw to 180 deg, and mute the room completely I can still hear the source, maybe 30dB lower than with yaw at 0 deg. Is this what should happen or is the signal leaking in from some other path?
That is the normal behavior. Indeed 30 dB attenuation is expected in that situation; that’s how the aperture/orientation model of spat works.
-In the spat5.oper~ reference it looks like I can adjust the pitch and roll of a source as well, but I am not hearing or seeing what I would expect in terms of the interaction with the narrow aperture setting.
Pitch is indeed supported.
Roll has – at the moment – no effect in our model.
Aperture is only visible in the xy view, is this a known issue?
It’s a known limitation. The display interface being 2D, it’s difficult to visualize a 3D directivity pattern.
- When I adjust the pitch “/source/1/pitch $1” it has the glitchy effect of flipping yaw of the source between 0 or 180. In this case I was expecting the sound of tilting a directional source towards the floor or ceiling, is this possible?
That’s strange. I’ll investigate.