| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | acoustic treatment | Japan | Often used in restaurants and public spaces to create a relaxing atmosphere and reduce echoing. | 1 |
| 2 | acoustic treatment in public spaces | Japan | Less common in traditional public spaces due to cultural emphasis on natural reverberation and minimalistic design. | 1 |
| 3 | soundproofing | Japan | Emphasis on maintaining silence and minimizing noise, so less common in residential buildings | 1 |
| 4 | soundproofing techniques | Japan | High importance in residential construction due to high population density | 1 |