ソーンFreq.FrequencyTop 50,000Meanings1nounsone (unit of perceived loudness)Technical unit in psychoacoustics; one sone equals the loudness of a 1 kHz tone at 40 dB above threshold.1ソーンは、1000ヘルツで40デシベルの純じゅん音おんの大おおきさに相そう当とうする。One sone corresponds to the loudness of a 1000 Hz pure tone at 40 dB.