{"id":461,"date":"2021-12-20T02:18:29","date_gmt":"2021-12-20T02:18:29","guid":{"rendered":"http:\/\/rionet.vn\/?p=461"},"modified":"2021-12-20T02:18:29","modified_gmt":"2021-12-20T02:18:29","slug":"cac-muc-do-nghe-kem","status":"publish","type":"post","link":"http:\/\/rionet.vn\/index.php\/2021\/12\/20\/cac-muc-do-nghe-kem\/","title":{"rendered":"C\u00e1c m\u1ee9c \u0111\u1ed9 nghe k\u00e9m"},"content":{"rendered":"<p>M\u1ee9c \u0111\u1ed9 nghe \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng c\u00e1ch \u0111o ng\u01b0\u1ee1ng nghe c\u1ee7a t\u1eebng tai. Ng\u01b0\u1ee1ng nghe x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 th\u00ednh l\u1ef1c \u0111\u1ed3.<\/p>\n<p>\u0110\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi c\u00f3 s\u1ee9c nghe b\u00ecnh th\u01b0\u1eddng th\u00ec m\u1ee9c \u0111\u1ed9 th\u00ednh l\u1ef1c s\u1ebd n\u1eb1m trong kho\u1ea3ng t\u1eeb 0 \u2013 20 dBHL. \u0110\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi c\u00f3 m\u1ee9c nghe cao h\u01a1n kho\u1ea3ng \u0111\u00f3, ch\u1ee9ng t\u1ecf ng\u01b0\u1eddi \u0111\u00f3 b\u1eaft \u0111\u1ea7u c\u00f3 d\u1ea5u hi\u1ec7u nghe k\u00e9m \u0111i. C\u1ee5 th\u1ec3, nghe k\u00e9m s\u1ebd chia th\u00e0nh c\u00e1c m\u1ee9c \u0111\u1ed9 nh\u01b0 d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"alignnone size-full wp-image-463\" src=\"http:\/\/rionet.vn\/wp-content\/uploads\/2021\/12\/Chua-co-ten-1.png\" alt=\"\" width=\"965\" height=\"241\" srcset=\"http:\/\/rionet.vn\/wp-content\/uploads\/2021\/12\/Chua-co-ten-1.png 965w, http:\/\/rionet.vn\/wp-content\/uploads\/2021\/12\/Chua-co-ten-1-768x192.png 768w\" sizes=\"(max-width: 965px) 100vw, 965px\" \/><\/p>\n<p><strong><b>M\u1ee9c \u0111\u1ed9 nh\u1eb9<\/b><\/strong>: t\u1eeb 25 \u2013 39 dBHL<\/p>\n<p><strong><b>Bi\u1ec3u hi\u1ec7n<\/b><\/strong>: Nh\u1eefng ng\u01b0\u1eddi nghe k\u00e9m m\u1ee9c \u0111\u1ed9 nh\u1eb9 khi giao ti\u1ebfp s\u1ebd c\u1ea3m th\u1ea5y kh\u00f3 nghe nh\u1eefng l\u1eddi n\u00f3i nh\u1ecf, hay c\u0169ng c\u00f3 l\u00fac nghe nh\u1ea7m l\u1eddi n\u00f3i.<\/p>\n<p><strong><b>M\u1ee9c \u0111\u1ed9 trung b\u00ecnh<\/b><\/strong>: 40 \u2013 69 dBHL<\/p>\n<p><strong><b>Bi\u1ec3u hi\u1ec7n<\/b><\/strong>: Nh\u1eefng ng\u01b0\u1eddi nghe k\u00e9m m\u1ee9c \u0111\u1ed9 trung b\u00ecnh khi giao ti\u1ebfp s\u1ebd c\u1ea3m th\u1ea5y kh\u00f3 nghe nh\u1eefng l\u1eddi n\u00f3i \u1edf m\u1ee9c trung b\u00ecnh, v\u00e0 c\u0169ng c\u00f3 nh\u1eefng l\u00fac nghe nh\u1ea7m n\u1ed9i dung.<\/p>\n<p><strong><b>M\u1ee9c \u0111\u1ed9 n\u1eb7ng<\/b><\/strong>: 70 \u2013 89 dBHL<\/p>\n<p><strong><b>Bi\u1ec3u hi\u1ec7n<\/b><\/strong>: Nh\u1eefng ng\u01b0\u1eddi nghe k\u00e9m \u1edf m\u1ee9c \u0111\u1ed9 n\u1eb7ng k\u1ec3 c\u1ea3 khi n\u00f3i to c\u0169ng c\u1ea3m th\u1ea5y kh\u00f3 nghe.<\/p>\n<p><strong><b>M\u1ee9c \u0111\u1ed9 s\u00e2u<\/b><\/strong>: &gt;90 dBHL<\/p>\n<p><strong><b>Bi\u1ec3u hi\u1ec7n<\/b><\/strong>: Nh\u1eefng ng\u01b0\u1eddi nghe k\u00e9m \u1edf m\u1ee9c \u0111\u1ed9 s\u00e2u h\u1ea7u h\u1ebft kh\u00f4ng nghe \u0111\u01b0\u1ee3c k\u1ec3 c\u1ea3 khi n\u00f3i to.<\/p>\n<p>M\u1ee9c \u0111\u1ed9 c\u1ee7a m\u1ed9t s\u1ed1 lo\u1ea1i \u00e2m thanh quen thu\u1ed9c<\/p>\n<table>\n<tbody>\n<tr>\n<td width=\"153\">M\u1ee9c \u0111\u1ed9 \u00e2m thanh (dB)<\/td>\n<td width=\"598\">C\u00e1c lo\u1ea1i \u00e2m thanh\u00a0quen thu\u1ed9c<\/td>\n<\/tr>\n<tr>\n<td width=\"153\">20<\/td>\n<td width=\"598\">Ti\u1ebfng n\u00f3i th\u1ea7m<\/td>\n<\/tr>\n<tr>\n<td width=\"153\">30<\/td>\n<td width=\"598\">Ti\u1ebfng l\u1eadt t\u1edd gi\u1ea5y<\/td>\n<\/tr>\n<tr>\n<td width=\"153\">40<\/td>\n<td width=\"598\">Ti\u1ebfng d\u1ebf k\u00eau to<\/td>\n<\/tr>\n<tr>\n<td width=\"153\">50<\/td>\n<td width=\"598\">Ti\u1ebfng n\u00f3i trong ph\u00f2ng<\/td>\n<\/tr>\n<tr>\n<td width=\"153\">60<\/td>\n<td width=\"598\">Ti\u1ebfng n\u00f3i trong \u00f4 t\u00f4<\/td>\n<\/tr>\n<tr>\n<td width=\"153\">70<\/td>\n<td width=\"598\">\u00c2m thanh trong ph\u00f2ng \u1ed3n \u00e0o<\/td>\n<\/tr>\n<tr>\n<td width=\"153\">80<\/td>\n<td width=\"598\">Ti\u1ebfng n\u00f3i chuy\u1ec7n to<\/td>\n<\/tr>\n<tr>\n<td width=\"153\">90<\/td>\n<td width=\"598\">C\u00f4ng tr\u01b0\u1eddng, t\u00e0u \u0111i\u1ec7n c\u00f3 \u00e2m thanh \u1ed3n \u00e0o<\/td>\n<\/tr>\n<tr>\n<td width=\"153\">100<\/td>\n<td width=\"598\">Ti\u1ebfng khi xe t\u00e0u \u0111i\u1ec7n \u0111i qua h\u1ea7m<\/td>\n<\/tr>\n<tr>\n<td width=\"153\">110<\/td>\n<td width=\"598\">Ti\u1ebfng c\u00f2i xe oto, xe t\u1ea3i<\/td>\n<\/tr>\n<tr>\n<td width=\"153\">120<\/td>\n<td width=\"598\">Ti\u1ebfng m\u00e1y bay h\u1ea1 c\u00e1nh<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>Khi tai v\u1eabn nghe \u0111\u01b0\u1ee3c ti\u1ebfng n\u00f3i th\u1ea7m\u00a0(20\u00a0dB) th\u00ec ch\u1ee9ng t\u1ecf m\u1ee9c nghe c\u1ee7a tai v\u1eabn b\u00ecnh th\u01b0\u1eddng. Nh\u01b0ng khi \u00e2m thanh \u1edf m\u1ee9c\u00a0(80\u00a0dB) m\u00e0 b\u1ea1n m\u1edbi nghe \u0111\u01b0\u1ee3c th\u00ec ch\u1ee9ng t\u1ecf b\u1ea1n \u0111ang \u1edf m\u1ee9c nghe k\u00e9m n\u1eb7ng.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>M\u1ee9c \u0111\u1ed9 nghe \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng c\u00e1ch \u0111o ng\u01b0\u1ee1ng nghe c\u1ee7a t\u1eebng tai. Ng\u01b0\u1ee1ng nghe x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 th\u00ednh l\u1ef1c \u0111\u1ed3. \u0110\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi c\u00f3 s\u1ee9c nghe b\u00ecnh th\u01b0\u1eddng th\u00ec m\u1ee9c \u0111\u1ed9 th\u00ednh l\u1ef1c s\u1ebd n\u1eb1m trong kho\u1ea3ng t\u1eeb 0 \u2013 20 dBHL. \u0110\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi c\u00f3 m\u1ee9c nghe cao [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":464,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[4],"tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>C\u00e1c m\u1ee9c \u0111\u1ed9 nghe k\u00e9m - Rionet<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/rionet.vn\/index.php\/2021\/12\/20\/cac-muc-do-nghe-kem\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"C\u00e1c m\u1ee9c \u0111\u1ed9 nghe k\u00e9m - Rionet\" \/>\n<meta property=\"og:description\" content=\"M\u1ee9c \u0111\u1ed9 nghe \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng c\u00e1ch \u0111o ng\u01b0\u1ee1ng nghe c\u1ee7a t\u1eebng tai. 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