Porous ferrite wave absorber
Reflective acoustical damping device for rooms
Sound absorber
Sound absorber
Sound absorber, room and method of making
Sound absorbing light fixture
Sound attenuator
Sound insulation/absorption structure, and structure having...
Sound reducing panel for animal housing rooms
Sound-attenuator
Space dividers and method of manufacture
Space dividers and method of manufacture
Transportable acoustic screening chamber for testing sound emitt
Trap for controlling standing waves in rooms
Wall attached sound absorptive structure