Open Access
Table B.3.
One-third octave band directivity with sound pressure levels normalised to the on-axis microphone – Unisex (average of male and female talkers).
| Azimuth (°) | 0 | 0 | 45 | 90 | 45 | 90 | 135 | 135 | 180 | 180 | 180 | 135 | 90 | 45 | 0 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Elevation (°) | 0 | −38 | −38 | −38 | 0 | 0 | 0 | −38 | −38 | 0 | 38 | 38 | 38 | 38 | 38 | 90 |
| One-third octave band (Hz) | Directivity (dB) | |||||||||||||||
| 100 | 0 | 0.0 | 0.2 | 0.7 | 0.8 | 0.1 | −0.8 | −0.5 | −0.8 | −1.8 | −3.2 | −3.5 | −2.7 | −2.5 | −2.3 | −3.6 |
| 125 | 0 | −0.4 | −1.3 | −1.7 | −0.5 | −2.8 | −2.6 | −1.6 | −1.0 | −2.6 | −3.5 | −4.1 | −3.6 | −2.6 | −1.9 | −5.0 |
| 160 | 0 | −1.7 | −2.1 | −2.8 | 0.3 | −2.0 | −4.0 | −4.2 | −3.4 | −3.8 | −0.9 | −1.2 | −0.5 | 0.0 | 0.3 | −1.7 |
| 200 | 0 | −1.6 | −2.4 | −4.3 | 0.6 | −1.5 | −3.3 | −7.4 | −7.1 | −4.2 | −2.3 | −1.7 | −0.7 | −0.6 | −0.6 | −3.0 |
| 250 | 0 | −0.1 | −1.7 | −2.4 | 0.0 | −1.6 | −3.5 | −6.7 | −7.6 | −5.0 | −4.9 | −5.3 | −4.4 | −3.1 | −2.7 | −3.7 |
| 315 | 0 | 2.3 | 1.9 | 1.1 | −0.1 | −2.3 | −4.7 | −3.7 | −4.1 | −6.0 | −2.0 | −2.3 | −1.9 | −1.5 | −1.0 | −1.3 |
| 400 | 0 | 3.1 | 2.3 | 0.4 | 0.8 | −2.2 | −4.7 | −2.2 | −4.0 | −3.5 | −2.3 | −2.7 | −1.6 | −0.7 | −0.1 | −0.6 |
| 500 | 0 | 4.5 | 1.7 | −0.3 | 2.0 | −0.8 | −3.7 | −5.1 | −8.0 | −4.1 | −1.4 | −2.2 | −0.4 | 1.1 | 0.7 | −1.9 |
| 630 | 0 | 2.8 | 1.9 | −0.3 | 2.7 | 0.4 | −4.4 | −6.0 | −7.7 | −5.2 | −2.5 | −3.8 | −2.7 | −2.4 | −2.8 | −4.3 |
| 800 | 0 | 0.0 | 2.4 | −0.4 | 0.8 | −0.2 | −6.7 | −4.7 | −9.3 | −4.6 | −2.1 | −3.4 | −1.9 | −0.7 | 0.3 | −3.1 |
| 1000 | 0 | −1.8 | 2.1 | −0.1 | −0.2 | 0.2 | −6.2 | −6.0 | −10.1 | −5.2 | −1.8 | −4.7 | −2.1 | 1.0 | 3.5 | −0.3 |
| 1250 | 0 | −5.5 | −4.5 | −4.5 | −2.7 | −5.1 | −9.8 | −10.9 | −16.1 | −11.0 | −7.8 | −10.3 | −6.0 | −2.2 | −1.1 | −4.4 |
| 1600 | 0 | −2.7 | −7.0 | −3.3 | 0.2 | −5.6 | −7.4 | −10.5 | −16.5 | −11.6 | −7.4 | −10.3 | −3.8 | −1.4 | −0.4 | −4.1 |
| 2000 | 0 | 0.7 | −3.2 | −3.5 | 1.6 | −5.6 | −6.0 | −9.9 | −17.9 | −11.7 | −6.2 | −8.6 | −2.7 | −1.2 | 2.6 | −2.2 |
| 2500 | 0 | −0.1 | 0.3 | −5.3 | −0.6 | −7.2 | −8.2 | −11.5 | −18.6 | −12.6 | −8.6 | −9.9 | −4.4 | −1.2 | 0.0 | −3.7 |
| 3150 | 0 | −1.1 | −0.2 | −5.9 | −1.3 | −5.6 | −10.9 | −12.6 | −20.6 | −13.8 | −11.1 | −11.0 | −6.0 | −2.9 | −3.2 | −5.8 |
| 4000 | 0 | −0.8 | −2.0 | −6.6 | −2.1 | −5.8 | −13.2 | −15.1 | −20.9 | −15.4 | −11.9 | −12.5 | −7.2 | −3.6 | −3.5 | −4.3 |
| 5000 | 0 | 0.5 | −0.1 | −5.1 | 0.5 | −7.3 | −13.2 | −14.9 | −18.9 | −16.1 | −12.9 | −11.8 | −7.2 | −3.4 | −0.2 | −1.9 |
| 6300 | 0 | 1.5 | −1.7 | −5.7 | −1.4 | −8.4 | −14.8 | −15.2 | −19.2 | −18.1 | −14.7 | −12.7 | −6.2 | −2.5 | 0.4 | −1.8 |
| 8000 | 0 | −0.1 | −1.0 | −5.6 | −2.0 | −10.3 | −16.3 | −16.3 | −20.0 | −20.7 | −16.5 | −12.6 | −7.2 | −2.1 | 0.1 | −2.1 |
| 10 000 | 0 | 0.7 | −1.4 | −5.5 | −1.8 | −10.2 | −15.9 | −17.4 | −22.2 | −23.3 | −16.5 | −13.3 | −6.2 | −1.9 | 1.1 | −3.3 |
| 12 500 | 0 | −2.4 | −0.2 | −5.3 | −1.4 | −8.7 | −15.2 | −17.2 | – | – | −18.2 | −12.7 | −8.0 | −2.9 | −1.8 | −5.7 |
| 16 000 | 0 | −2.8 | −2.2 | −4.9 | −1.1 | −7.2 | – | – | – | – | – | – | −7.9 | −3.4 | −2.1 | −6.7 |
| 20 000 | 0 | −2.6 | −2.7 | −3.2 | −0.8 | −5.6 | – | – | – | – | – | – | −5.7 | −2.3 | −1.7 | −5.7 |
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