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ÇìµåÆùÀ̳ª ½ºÇÇÄ¿¸¦ ÅëÇØ µé¸®´Â ¡°»ß¡± ¶Ç´Â ¡°»Ñ¡± ÇÏ´Â ¾ÆÁÖ ÀÛÀº ¼Ò¸®±îÁöµµ ¸ðµÎ ¹ÝÀÀÇÏ¿©, °¢ ÁÖÆļö º°·Î ¾ó¸¶³ª ÀÛÀº ¼Ò¸®¸¦ µéÀ» ¼ö ÀÖ´ÂÁö Æò°¡ÇÏ´Â °Ë»çÀÔ´Ï´Ù.
û·Â°Ë»ç Á¾·ù¿¡´Â, ÇìµåÆùÀ» »ç¿ëÇÏ¿© Æò°¡ÇÏ´Â '±âµµÃ»·Â°Ë»ç(Air conduction threshold)', °ñµµÁøµ¿Ã¼¸¦ ÀÌ¿ëÇÏ¿© µÎ°³°ñÀ» Áøµ¿½ÃÄÑ Æò°¡ÇÏ´Â '°ñµµÃ»·Â°Ë»ç(Bone conduction threshold)', º¸Ã»±â¸¦ Âø¿ëÇÏ°í ½ºÇÇÄ¿¸¦ ÅëÇØ °Ë»çÇÏ´Â'À½Àå°Ë»ç(Sound field threshold)' µîÀÌ ÀÖ½À´Ï´Ù.