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| Normal Sound Activity |
Noise Level |
Desired Adjacent Room Affect |
Noise Level |
Source Solution |
STC |
| Busy Street | 90 dB | Conference Area | 50 dB | 400R | 52 |
| Industrial Shop | 85 dB | Inspection Area | 40 dB | Ultra Plus | 50 |
| Commons Area | 80 dB | Conference Area | 40 dB | Ultra | 47 |
| Gymnasium | 85 dB | Activities Room | 50 dB | Plus | 45 |
| Noisy Classroom | 70 dB | Quiet Classroom | 40 dB | Hz | 42 |
| Conversational Speech | 60 dB | Meeting | 40 dB | Hz | 42 |
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