Table 2.
Sound Pressure Levels measuring points during band rehearsal
| Measuring Points | SPL/dB* (Peak) | SPL/dB* (Mean value) |
|---|---|---|
| P1 (Conductor) | 107.9 | 103.6 |
| P2 (Clarinets' Return sound) | 107.9 | 103.6 |
| P3 (Trumpets' Return sound | 107.9 | 103.6 |
| P4 (Trombones) | 105.8 | 101.6 |
| P5 (Trombones) | 106.8 | 103.3 |
| P6 (Trombones/Trumpets) | 110.6 | 104.3 |
| P7 (Trumpets) | 110.9 | 106.9 |
| P8 (Trumpets) | 108.8 | 104.3 |
| P9 (Saxophones) | 107.1 | 101.5 |
| P10 (Clarinets/Flute) | 105.5 | 102.1 |
| P11 (Vocals) | 104.3 | 100.1 |
| P12 (Vocals Return sound) | 101.1 | 96.4 |
| P13 (Vocals Return sound) | 104.3 | 98.1 |
| P14 (Drums) | 104.1 | 102.2 |
| P15 (Percussion/Keyboard/Return sound) | 103.1 | 98.7 |
| P16 (Electric Guitar/Return sound) | 104.8 | 101.4 |
| P17 (Bass/ Return sound) | 104.6 | 101.3 |
| P18 (Mixer) | 98.7 | 98.7 |
*
ound Pressure Level/decibel