Hi everyone, from Melbourne Australia-Acoustics Forum-Acoustic Fields Forum

hello fellow melbournian!
what I’ve read so far indicates angled surfaces can have really unpredictable results, especially in small rooms, so rectangular is the go.
I read one study that found, even with only one wall angled, treatments on difference sides could either improve or dramatically worsen the acoustics, and that was for a theoretical plain box all surfaces equal, so imagine trying to account for doors, windows, equipment, ventilation etc.
The only place I’ve seen it recommended is for control room windows, and they are designed specifically for the expected SPLs and live room dimensions.