OH, yeah, acoustic treatment such as sold by GIK and others is not what you need. Here's an example of noise blocking for windows:
Acoustical treatment to minimize exterior noises?
Because the world comes with annoying nonstop leaf blower noise from neighbours and dogs barking at 7 AM how does one protect a persons sanity from all this unwelcome noise?
I bought acoustical compressed panels, sort of like ceiling tile panels and place them over a window frame to muffle exterior noises but it could be a a lot better.
I'm interested to know if there's any acoustical tiles or panels that are well suited to deal with preventing annoying exterior noises from entering a sacred room designed to enjoy inner room sound as well as sleep. Ideally covering a larger wall Space as well as the window frames completely is the only way to pursue this noise reducing goal. All this without doing major surgery on the walls and installing Multi pane windows designed to improve quietness within a room which are horrifying expensive to install.