顶一下,我也想知道。查了下VA One的帮助文件:
A diffuse acoustic field (DAF) is used to model a diffuse acoustic pressure load acting over the surface area of a subsystem. A diffuse acoustic field generally only exists in lightly damped rooms or other reverberant enclosures.
A propagating wavefield (PWF) is used to model a pressure wavefield propagating over the surface area of a subsystem.A propagating pressure wavefield generally exists in an exterior or semi-infinite (e.g. long duct) acoustic environment and is associated with a localized acoustic source of sound power.