| Coincidentally, one phon is approximately the smallest detectable difference in loudness. |
| They say you go gamble, Chance he go gamble, phon he go gamble too. |
| The phon scale is partially subjective in that the judgment of a listener is involved in comparing any arbitrary sound with the physically defined reference in order to establish its loudness in phons. |
| A variation of one phon in the loudness level of a sound is approximately the smallest change in sound-pressure level detectable by the human ear under normal listening conditions. |
| The use of the phon as a unit of loudness is an improvement over just quoting the level in decibels. |
| Steve might threaten what he liked, but jump phon would not. |
