1/2" Mineral fiber acoustic tiles 8" Concrete block (painted/filled) 8" Concrete block (unpainted/unfilled) Acoustic coating 25 mm Acoustic coating 50 mm Brick (natural) Brick (painted) Carpet: 1/4" pile height Carpet: 1/8" pile height Carpet: 3/16" pile height Door (solid wood panel) Glazing Heavy velour curtains draped Marble Opening Parquet floor (floating) PVC-surface or linoleum Rough plaster (lime cement plaster) Smooth plastering
Floor
Select material 1/2" Mineral fiber acoustic tiles 8" Concrete block (painted/filled) 8" Concrete block (unpainted/unfilled) Acoustic coating 25 mm Acoustic coating 50 mm Brick (natural) Brick (painted) Carpet: 1/4" pile height Carpet: 1/8" pile height Carpet: 3/16" pile height Door (solid wood panel) Glazing Heavy velour curtains draped Marble Opening Parquet floor (floating) PVC-surface or linoleum Rough plaster (lime cement plaster) Smooth plastering Other
Ceiling
Select material 1/2" Mineral fiber acoustic tiles 8" Concrete block (painted/filled) 8" Concrete block (unpainted/unfilled) Acoustic coating 25 mm Acoustic coating 50 mm Brick (natural) Brick (painted) Carpet: 1/4" pile height Carpet: 1/8" pile height Carpet: 3/16" pile height Door (solid wood panel) Glazing Heavy velour curtains draped Marble Opening Parquet floor (floating) PVC-surface or linoleum Rough plaster (lime cement plaster) Smooth plastering Other
Walls
Select material 1/2" Mineral fiber acoustic tiles 8" Concrete block (painted/filled) 8" Concrete block (unpainted/unfilled) Acoustic coating 25 mm Acoustic coating 50 mm Brick (natural) Brick (painted) Carpet: 1/4" pile height Carpet: 1/8" pile height Carpet: 3/16" pile height Door (solid wood panel) Glazing Heavy velour curtains draped Marble Opening Parquet floor (floating) PVC-surface or linoleum Rough plaster (lime cement plaster) Smooth plastering Other
First wall
Select material 1/2" Mineral fiber acoustic tiles 8" Concrete block (painted/filled) 8" Concrete block (unpainted/unfilled) Acoustic coating 25 mm Acoustic coating 50 mm Brick (natural) Brick (painted) Carpet: 1/4" pile height Carpet: 1/8" pile height Carpet: 3/16" pile height Door (solid wood panel) Glazing Heavy velour curtains draped Marble Opening Parquet floor (floating) PVC-surface or linoleum Rough plaster (lime cement plaster) Smooth plastering Other
Second wall
Select material 1/2" Mineral fiber acoustic tiles 8" Concrete block (painted/filled) 8" Concrete block (unpainted/unfilled) Acoustic coating 25 mm Acoustic coating 50 mm Brick (natural) Brick (painted) Carpet: 1/4" pile height Carpet: 1/8" pile height Carpet: 3/16" pile height Door (solid wood panel) Glazing Heavy velour curtains draped Marble Opening Parquet floor (floating) PVC-surface or linoleum Rough plaster (lime cement plaster) Smooth plastering Other
Third wall
Select material 1/2" Mineral fiber acoustic tiles 8" Concrete block (painted/filled) 8" Concrete block (unpainted/unfilled) Acoustic coating 25 mm Acoustic coating 50 mm Brick (natural) Brick (painted) Carpet: 1/4" pile height Carpet: 1/8" pile height Carpet: 3/16" pile height Door (solid wood panel) Glazing Heavy velour curtains draped Marble Opening Parquet floor (floating) PVC-surface or linoleum Rough plaster (lime cement plaster) Smooth plastering Other
Fourth wall
Select material 1/2" Mineral fiber acoustic tiles 8" Concrete block (painted/filled) 8" Concrete block (unpainted/unfilled) Acoustic coating 25 mm Acoustic coating 50 mm Brick (natural) Brick (painted) Carpet: 1/4" pile height Carpet: 1/8" pile height Carpet: 3/16" pile height Door (solid wood panel) Glazing Heavy velour curtains draped Marble Opening Parquet floor (floating) PVC-surface or linoleum Rough plaster (lime cement plaster) Smooth plastering Other
Recommended Reverberation Time
Theres not an unique ideal Reverberation Time. Each case is different and needs an specific one. Select your type
Types of room
Select room Lecture room Movie theater Concert hall Recording studio Music reproduction room
First, we calculate the total mean absorption of the room according to your introduced data. Then, we choose Sabine or Eyring in function of this result, and obtain the Reverberation Time by using their formulas. Both Sabine and Eyring are good general approaches for reverberation time calculations but will give the best results for simple “shoebox shaped rooms”.
Sabine Eyring Absorption coefficient $$$\bar\alpha < 0.2$$$ $$$\bar\alpha \geq 0.2$$$ Formula $$$RT = {{0.161 V}\over{\bar\alpha S} }$$$ $$$RT = {{0.161 V}\over{-S \ln (1- \bar\alpha)} }$$$
