ᐅ Sound insulation in front of the window pane

Created on: 9 Jan 2025 14:56
M
mikemc1
M
mikemc1
9 Jan 2025 14:56
Good afternoon!

I recently converted a room into a bedroom. Unfortunately, I can hear street noise through the window and would like to reduce it somewhat. My idea was to simply install insulation panels in the window recess. They could remain there permanently and only be removed for window cleaning. During my research, I came across PhoneStar Tri sound insulation panels and Knauf Diamant (used together). Would these be effective? Do you have better suggestions?

Best regards,
Michael

Attached is a photo (The window in question is twice as wide and without tiles)
Wooden window with horizontal blinds, cord on the left, handle on the right, view outside.