Open Access
Table 1
Amplitude (ΔA) and frequency (Δf) deviations for the first 10 peaks of the trombone input impedance without and with control for a case with a loudspeaker placed at 0.05 m from the bell (case 1).
| Peak no. | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|---|---|---|---|---|
| f (Hz) | 39 | 143 | 211 | 297 | 357 | 450 | 505 | 602 | 659 | 752 |
| ΔA (dB) | <0.1 | 0.1 | 0.2 | 0.1 | 0.9 | 1.7 | 0.8 | 2.9 | 6.6 | 4.8 |
| Δf (cent) | <1 | 1.1 | 2.2 | 1.6 | 1.5 | 0.5 | 3.1 | 1.3 | 0.9 | 0.7 |
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