Noise sones

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  • Publicado : 20 de abril de 2010
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According to Stanley Smith Stevens' definition, 1 sone is equivalent to 40 phons,
which is defined as the loudness level of a pure 1 kHz tone at LN = 40 dBSPL,
or dBA, but only (!) for a sine wave of 1 kHz and not for broadband noise.
There is no "dBA" curve given as threshold of human hearing. | |Relation between loudness N in sones
and loudness level LN in phons
|[pic]|Dynamic |
| |range |
| |phons|
| |sones |
| | |
||  |
| |120 |
| |256 |
|| |
| |  |
| |110 |
||128 |
| | |
| |fff|
| |100 |
| |64 |
|| |
| |ff |
| |90 |
||32 |
| | |
| |f |
||80 |
| |16 |
| |...
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