{"id":7593,"date":"2026-10-09T02:42:53","date_gmt":"2026-10-09T02:42:53","guid":{"rendered":"https:\/\/drbarrietan.com\/mat-thinh-luc-va-may-tro-thinh\/"},"modified":"2026-10-09T02:42:54","modified_gmt":"2026-10-09T02:42:54","slug":"mat-thinh-luc-va-may-tro-thinh","status":"publish","type":"post","link":"https:\/\/drbarrietan.com\/vi\/mat-thinh-luc-va-may-tro-thinh\/","title":{"rendered":"M\u1ea5t th\u00ednh l\u1ef1c v\u00e0 M\u00e1y tr\u1ee3 th\u00ednh"},"content":{"rendered":"\n

V\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p \u1edf gi\u1edbi tr\u1ebb l\u00e0 g\u00ec?<\/h2>\n\n

Nh\u00ecn chung, gi\u1edbi tr\u1ebb t\u1ea1i \u0111\u1ecba ph\u01b0\u01a1ng c\u00f3 th\u00ednh gi\u00e1c t\u1ed1t. Tuy nhi\u00ean, h\u1ecd th\u01b0\u1eddng kh\u00f4ng ch\u00fa \u00fd \u0111\u1ebfn c\u00e1c th\u00f3i quen v\u00e0 v\u1ec7 sinh th\u00ednh gi\u00e1c t\u1ed1t. H\u1ecd c\u00f3 xu h\u01b0\u1edbng xem th\u00ednh gi\u00e1c t\u1ed1t c\u1ee7a m\u00ecnh l\u00e0 \u0111i\u1ec1u hi\u1ec3n nhi\u00ean v\u00e0 do \u0111\u00f3 ch\u1ecdn kh\u00f4ng b\u1ea3o v\u1ec7 \u0111\u00f4i tai kh\u1ecfi c\u00e1c m\u1ed1i \u0111e d\u1ecda ti\u1ec1m \u1ea9n. M\u1ed1i \u0111e d\u1ecda ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 nghe nh\u1ea1c l\u1edbn trong th\u1eddi gian d\u00e0i m\u1ed7i ng\u00e0y.<\/p>\n\n

Ng\u00e0y nay, r\u1ea5t d\u1ec5 b\u1eaft g\u1eb7p nhi\u1ec1u ng\u01b0\u1eddi tr\u1ebb \u0111eo tai nghe trong ph\u1ea7n l\u1edbn th\u1eddi gian ngo\u00e0i gi\u1edd h\u1ecdc. Nh\u1ea1c h\u1ecd nghe qua c\u00e1c lo\u1ea1i tai nghe n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf m\u1ee9c \u00e2m l\u01b0\u1ee3ng r\u1ea5t cao. N\u1ebfu vi\u1ec7c ti\u1ebfp x\u00fac v\u1edbi \u00e2m nh\u1ea1c v\u00e0 \u00e2m thanh l\u1edbn n\u00e0y k\u00e9o d\u00e0i (l\u00ean \u0111\u1ebfn 8 gi\u1edd m\u1ed9t ng\u00e0y), tai trong s\u1ebd b\u1ecb t\u1ed5n th\u01b0\u01a1ng do ti\u1ebfng \u1ed3n. T\u00ecnh tr\u1ea1ng n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 M\u1ea5t th\u00ednh l\u1ef1c do ti\u1ebfng \u1ed3n<\/a>.<\/p>\n\n

T\u00ecnh tr\u1ea1ng n\u00e0y th\u01b0\u1eddng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u00e1c t\u1ea7n s\u1ed1 cao trong ph\u1ea1m vi th\u00ednh gi\u00e1c c\u1ee7a h\u1ecd nhi\u1ec1u h\u01a1n so v\u1edbi c\u00e1c t\u1ea7n s\u1ed1 th\u1ea5p. \u0110i\u1ec1u n\u00e0y \u0111\u00f4i khi d\u1eabn \u0111\u1ebfn vi\u1ec7c kh\u00f4ng th\u1ec3 nghe r\u00f5 m\u1ed9t s\u1ed1 t\u1eeb ho\u1eb7c \u00e2m thanh nh\u1ea5t \u0111\u1ecbnh.<\/p>\n\n

C\u00f3 ph\u1ea3i ch\u1ec9 ng\u01b0\u1eddi gi\u00e0 m\u1edbi b\u1ecb m\u1ea5t th\u00ednh l\u1ef1c?<\/h2>\n\n

M\u1ea5t th\u00ednh l\u1ef1c c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn m\u1ecdi l\u1ee9a tu\u1ed5i. Tr\u1ebb em c\u00f3 th\u1ec3 b\u1ecb \u0111i\u1ebfc b\u1ea9m sinh ho\u1eb7c b\u1ecb m\u1ea5t th\u00ednh l\u1ef1c trong th\u1eddi th\u01a1 \u1ea5u. M\u1ea5t th\u00ednh l\u1ef1c c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn c\u1ea3 hai tai ho\u1eb7c ch\u1ec9 m\u1ed9t tai. M\u1ea5t th\u00ednh l\u1ef1c c\u00f3 th\u1ec3 kh\u1edfi ph\u00e1t \u0111\u1ed9t ng\u1ed9t ho\u1eb7c ph\u00e1t tri\u1ec3n ch\u1eadm v\u00e0 t\u0103ng d\u1ea7n trong nhi\u1ec1u n\u0103m. Do \u0111\u00f3, nh\u1eefng ng\u01b0\u1eddi \u1edf m\u1ecdi nh\u00f3m tu\u1ed5i \u0111\u1ec1u c\u00f3 th\u1ec3 b\u1ecb m\u1ea5t th\u00ednh l\u1ef1c t\u1ea1i b\u1ea5t k\u1ef3 th\u1eddi \u0111i\u1ec3m n\u00e0o trong \u0111\u1eddi do nhi\u1ec1u nguy\u00ean nh\u00e2n kh\u00e1c nhau.<\/p>\n\n

Qu\u00e1 tr\u00ecnh nghe x\u1ea3y ra khi \u00e2m thanh trong m\u00f4i tr\u01b0\u1eddng \u0111\u01b0\u1ee3c h\u1ec7 th\u1ed1ng th\u00ednh gi\u00e1c ph\u00e1t hi\u1ec7n. Con \u0111\u01b0\u1eddng n\u00e0y bao g\u1ed3m c\u00e1c b\u01b0\u1edbc sau:<\/p>\n\n

\u0110\u1ea7u ti\u00ean, \u00e2m thanh \u0111\u01b0\u1ee3c truy\u1ec1n d\u01b0\u1edbi d\u1ea1ng s\u00f3ng \u00e2m \u0111i t\u1eeb m\u00f4i tr\u01b0\u1eddng v\u00e0o \u1ed1ng tai ngo\u00e0i. Nh\u1eefng s\u00f3ng \u00e2m n\u00e0y sau \u0111\u00f3 l\u00e0m cho m\u00e0ng nh\u0129 v\u00e0 c\u00e1c x\u01b0\u01a1ng tai gi\u1eefa rung l\u00ean.<\/p>\n\n

C\u00e1c rung \u0111\u1ed9ng \u0111\u01b0\u1ee3c truy\u1ec1n v\u00e0o tai trong (\u1ed1c tai) v\u00e0 l\u00e0m di chuy\u1ec3n c\u00e1c t\u1ebf b\u00e0o l\u00f4ng trong v\u00e0 ngo\u00e0i, v\u1ed1n \u0111i\u1ec1u h\u00f2a c\u00e1c \u0111\u1ea7u d\u00e2y th\u1ea7n kinh th\u00ednh gi\u00e1c v\u00e0 cho ph\u00e9p d\u00e2y th\u1ea7n kinh th\u00ednh gi\u00e1c chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng rung \u0111\u1ed9ng \u0111\u00f3 th\u00e0nh c\u00e1c xung \u0111i\u1ec7n s\u1ebd truy\u1ec1n d\u1ecdc theo d\u00e2y th\u1ea7n kinh th\u00ednh gi\u00e1c (d\u00e2y th\u1ea7n kinh \u1ed1c tai).<\/p>\n\n

C\u00e1c xung \u0111i\u1ec7n truy\u1ec1n \u0111\u1ebfn th\u00e2n n\u00e3o v\u00e0 sau \u0111\u00f3 l\u00ean n\u00e3o th\u00f4ng qua m\u1ed9t chu\u1ed7i c\u00e1c k\u1ebft n\u1ed1i v\u1edbi c\u00e1c d\u00e2y th\u1ea7n kinh kh\u00e1c trong h\u1ec7 th\u1ea7n kinh trung \u01b0\u01a1ng, cu\u1ed1i c\u00f9ng k\u00edch ho\u1ea1t m\u1ed9t ph\u1ea7n c\u1ee5 th\u1ec3 c\u1ee7a n\u00e3o ch\u1ecbu tr\u00e1ch nhi\u1ec7m v\u1ec1 th\u00ednh gi\u00e1c.<\/p>\n\n

\u0110\u00e2y cu\u1ed1i c\u00f9ng l\u00e0 n\u01a1i n\u00e3o nh\u1eadn bi\u1ebft \u00e2m thanh v\u00e0 hi\u1ec3u \u0111\u01b0\u1ee3c \u00fd ngh\u0129a c\u1ee7a c\u00e1c \u00e2m thanh \u0111\u1ebfn t\u1eeb m\u00f4i tr\u01b0\u1eddng.<\/p>\n\n

\u0110i\u1ec1u g\u00ec c\u00f3 th\u1ec3 g\u00e2y ra m\u1ea5t th\u00ednh l\u1ef1c?<\/h2>\n\n

Nhi\u1ec1u y\u1ebfu t\u1ed1 c\u00f3 th\u1ec3 g\u00e2y ra m\u1ea5t th\u00ednh l\u1ef1c. C\u00f3 th\u1ec3 c\u00f3 nh\u1eefng t\u00ecnh tr\u1ea1ng ng\u0103n c\u1ea3n s\u00f3ng \u00e2m truy\u1ec1n hi\u1ec7u qu\u1ea3 qua \u1ed1ng tai ngo\u00e0i ho\u1eb7c tai gi\u1eefa.<\/p>\n\n

C\u00e1c t\u00ecnh tr\u1ea1ng \u0111\u01a1n gi\u1ea3n nh\u01b0 r\u00e1y tai b\u1ecb t\u1eafc ngh\u1ebdn \u0111\u00f3ng vai tr\u00f2 nh\u01b0 m\u1ed9t n\u00fat ch\u1eb7n ng\u0103n \u00e2m thanh truy\u1ec1n \u0111\u1ebfn m\u00e0ng nh\u0129. C\u0169ng c\u00f3 th\u1ec3 c\u00f3 d\u1ecbch t\u00edch t\u1ee5 trong kh\u00f4ng gian ph\u00eda sau m\u00e0ng nh\u0129 l\u00e0m c\u1ea3n tr\u1edf vi\u1ec7c truy\u1ec1n s\u00f3ng \u00e2m. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0 do nhi\u1ec5m tr\u00f9ng tai gi\u1eefa.<\/p>\n\n

C\u00e1c b\u1ec7nh kh\u00e1c l\u00e0m cho x\u01b0\u01a1ng tai gi\u1eefa b\u1ecb m\u00f2n, khi\u1ebfn ch\u00fang kh\u00f4ng th\u1ec3 truy\u1ec1n c\u00e1c rung \u0111\u1ed9ng s\u00f3ng \u00e2m. C\u0169ng c\u00f3 nh\u1eefng b\u1ec7nh kh\u00e1c \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn tai trong (\u1ed1c tai). Ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 L\u00e3o th\u00ednh (m\u1ea5t th\u00ednh l\u1ef1c \u1edf ng\u01b0\u1eddi gi\u00e0<\/a>), x\u1ea3y ra khi \u1ed1c tai b\u1eaft \u0111\u1ea7u tho\u00e1i h\u00f3a, c\u00e1c t\u1ebf b\u00e0o l\u00f4ng v\u00e0 \u0111\u1ea7u d\u00e2y th\u1ea7n kinh kh\u00f4ng c\u00f2n ho\u1ea1t \u0111\u1ed9ng t\u1ed1t nh\u01b0 khi ng\u01b0\u1eddi \u0111\u00f3 c\u00f2n tr\u1ebb.<\/p>\n\n

C\u0169ng c\u00f3 th\u1ec3 do nhi\u1ec5m virus g\u00e2y t\u1ed5n th\u01b0\u01a1ng tai trong v\u00e0 l\u00e0m h\u1ecfng kh\u1ea3 n\u0103ng c\u1ea3m nh\u1eadn \u00e2m thanh. C\u0169ng c\u00f3 th\u1ec3 c\u00f3 c\u00e1c kh\u1ed1i u \u1edf th\u00e2n n\u00e3o ch\u00e8n \u00e9p d\u00e2y th\u1ea7n kinh th\u00ednh gi\u00e1c, ng\u0103n c\u1ea3n n\u00f3 ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng.<\/p>\n\n

Nh\u01b0 b\u1ea1n c\u00f3 th\u1ec3 th\u1ea5y, c\u00f3 r\u1ea5t nhi\u1ec1u l\u00fd do v\u00e0 t\u00ecnh tr\u1ea1ng c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn m\u1ea5t th\u00ednh l\u1ef1c.<\/p>\n\n

C\u00f3 bao nhi\u00eau lo\u1ea1i m\u1ea5t th\u00ednh l\u1ef1c?<\/h2>\n\n

C\u00f3 3 lo\u1ea1i ho\u1eb7c m\u00f4 h\u00ecnh m\u1ea5t th\u00ednh l\u1ef1c ch\u00ednh.<\/p>\n\n

M\u1ea5t th\u00ednh l\u1ef1c d\u1eabn truy\u1ec1n<\/a>:<\/strong> Khi c\u00f3 v\u1ea5n \u0111\u1ec1 trong vi\u1ec7c d\u1eabn truy\u1ec1n v\u00e0 truy\u1ec1n t\u1ea3i s\u00f3ng \u00e2m qua h\u1ec7 th\u1ed1ng th\u00ednh gi\u00e1c.<\/p>\n\n

M\u1ea5t th\u00ednh l\u1ef1c ti\u1ebfp nh\u1eadn (th\u1ea7n kinh gi\u00e1c quan)<\/a><\/strong>: Khi v\u1ea5n \u0111\u1ec1 n\u1eb1m \u1edf \u1ed1c tai (c\u01a1 quan c\u1ea3m gi\u00e1c), \u1edf d\u00e2y th\u1ea7n kinh th\u00ednh gi\u00e1c (d\u00e2y th\u1ea7n kinh \u1ed1c tai), ho\u1eb7c \u1edf h\u1ec7 th\u1ea7n kinh trung \u01b0\u01a1ng. V\u00ec v\u1eady, c\u00f3 v\u1ea5n \u0111\u1ec1 v\u1edbi vi\u1ec7c chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u s\u00f3ng \u00e2m th\u00e0nh t\u00edn hi\u1ec7u \u0111i\u1ec7n ho\u1eb7c v\u1edbi vi\u1ec7c truy\u1ec1n c\u00e1c t\u00edn hi\u1ec7u \u0111i\u1ec7n n\u00e0y \u0111\u1ebfn n\u00e3o.<\/p>\n\n

M\u1ea5t th\u00ednh l\u1ef1c h\u1ed7n h\u1ee3p<\/a>:<\/strong> \u0110\u00e2y l\u00e0 s\u1ef1 k\u1ebft h\u1ee3p c\u1ee7a m\u1ea5t th\u00ednh l\u1ef1c d\u1eabn truy\u1ec1n v\u00e0 ti\u1ebfp nh\u1eadn.<\/p>\n\n

M\u1ea5t th\u00ednh l\u1ef1c c\u0169ng \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u00e0nh m\u1ee9c \u0111\u1ed9 nh\u1eb9, trung b\u00ecnh, n\u1eb7ng v\u00e0 s\u00e2u. \u0110i\u1ec1u n\u00e0y \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi c\u01b0\u1eddng \u0111\u1ed9 \u00e2m thanh t\u1ed1i thi\u1ec3u c\u1ea7n thi\u1ebft \u0111\u1ec3 h\u1ecd c\u1ea3m nh\u1eadn \u0111\u01b0\u1ee3c \u00e2m thanh. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c v\u1ebd tr\u00ean m\u1ed9t bi\u1ec3u \u0111\u1ed3 trong b\u00e0i ki\u1ec3m tra th\u00ednh l\u1ef1c g\u1ecdi l\u00e0 Th\u00ednh l\u1ef1c \u0111\u1ed3 \u0111\u01a1n \u00e2m.Trong b\u00e0i ki\u1ec3m tra n\u00e0y, c\u00e1c \u00e2m thanh c\u00f3 t\u1ea7n s\u1ed1 c\u1ee5 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e1t cho b\u1ec7nh nh\u00e2n\/ng\u01b0\u1eddi nghe trong m\u00f4i tr\u01b0\u1eddng y\u00ean t\u0129nh. Nh\u1eefng \u00e2m thanh n\u00e0y c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 c\u1ee5 th\u1ec3, v\u00e0 c\u01b0\u1eddng \u0111\u1ed9 t\u1ed1i thi\u1ec3u (\u0111\u01b0\u1ee3c \u0111o b\u1eb1ng decibel m\u1ee9c th\u00ednh l\u1ef1c, dB HL) c\u1ea7n thi\u1ebft tr\u01b0\u1edbc khi b\u1ec7nh nh\u00e2n nh\u1eadn di\u1ec7n \u0111\u01b0\u1ee3c \u00e2m thanh \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ng\u01b0\u1ee1ng nghe. Bi\u1ec3u \u0111\u1ed3 c\u00e1c ng\u01b0\u1ee1ng nghe \u1edf m\u1ed7i t\u1ea7n s\u1ed1 (th\u01b0\u1eddng \u0111\u01b0\u1ee3c ki\u1ec3m tra t\u1eeb 250Hz \u0111\u1ebfn 8000Hz) \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 Th\u00ednh l\u1ef1c \u0111\u1ed3 \u0111\u01a1n \u00e2m.C\u00e1c b\u00e0i ki\u1ec3m tra th\u00ednh l\u1ef1c chuy\u00ean bi\u1ec7t kh\u00e1c bao g\u1ed3m Ch\u1ec9 s\u1ed1 ph\u00e2n bi\u1ec7t l\u1eddi n\u00f3i, ki\u1ec3m tra kh\u1ea3 n\u0103ng l\u1eb7p l\u1ea1i c\u00e1c t\u1eeb \u0111\u01b0\u1ee3c n\u00f3i v\u1edbi ng\u01b0\u1eddi nghe v\u00e0 \u0111o \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ee7a th\u00ednh gi\u00e1c c\u1ee7a h\u1ecd.<\/p>\n\n

N\u00ean l\u00e0m g\u00ec n\u1ebfu b\u1ecb m\u1ea5t th\u00ednh l\u1ef1c?<\/h2>\n\n

\u0110i\u1ec1u \u0111\u1ea7u ti\u00ean n\u00ean l\u00e0m l\u00e0 tham kh\u1ea3o \u00fd ki\u1ebfn c\u1ee7a b\u00e1c s\u0129 ph\u1eabu thu\u1eadt chuy\u00ean khoa Tai M\u0169i H\u1ecdng. \u0110i\u1ec1u n\u00e0y s\u1ebd cho ph\u00e9p b\u00e1c s\u0129 ch\u1ea9n \u0111o\u00e1n b\u1ea5t k\u1ef3 nguy\u00ean nh\u00e2n n\u00e0o c\u00f3 th\u1ec3 kh\u1eafc ph\u1ee5c \u0111\u01b0\u1ee3c c\u1ee7a vi\u1ec7c m\u1ea5t th\u00ednh l\u1ef1c, ch\u1eb3ng h\u1ea1n nh\u01b0 r\u00e1y tai b\u1ecb t\u1eafc ngh\u1ebdn ho\u1eb7c d\u1ecbch trong tai gi\u1eefa.<\/p>\n\n

Khi t\u00ecnh tr\u1ea1ng y t\u1ebf ti\u1ec1m \u1ea9n g\u00e2y ra m\u1ea5t th\u00ednh l\u1ef1c \u0111\u01b0\u1ee3c ch\u1ea9n \u0111o\u00e1n, n\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u tr\u1ecb theo nhi\u1ec1u c\u00e1ch kh\u00e1c nhau. Trong m\u1ed9t s\u1ed1 t\u00ecnh hu\u1ed1ng, ch\u1eb3ng h\u1ea1n nh\u01b0 nhi\u1ec5m tr\u00f9ng \u1ed1ng tai n\u1eb7ng, c\u00f3 th\u1ec3 c\u1ea7n d\u00f9ng thu\u1ed1c nh\u1ecf tai kh\u00e1ng sinh. R\u00e1y tai b\u1ecb t\u1eafc ngh\u1ebdn ph\u1ea3i \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf c\u1ea9n th\u1eadn. D\u1ecbch trong tai gi\u1eefa ph\u1ea3i \u0111\u01b0\u1ee3c d\u1eabn l\u01b0u. N\u1ebfu c\u00f3 c\u00e1c b\u1ec7nh c\u1ee5 th\u1ec3, ch\u1eb3ng h\u1ea1n nh\u01b0 vi\u00eam tai gi\u1eefa c\u00f3 kh\u1ed1i u bi\u1ec3u m\u00f4 (cholesteatoma), l\u00e0m m\u00f2n x\u01b0\u01a1ng tai gi\u1eefa, ch\u00fang ph\u1ea3i \u0111\u01b0\u1ee3c ph\u1eabu thu\u1eadt.<\/p>\n\n

Cu\u1ed1i c\u00f9ng, c\u00f3 m\u00e1y tr\u1ee3 th\u00ednh v\u00e0 c\u00e1c thi\u1ebft b\u1ecb c\u1ea5y gh\u00e9p th\u00ednh gi\u00e1c ph\u1eabu thu\u1eadt \u0111\u1ec3 gi\u00fap \u0111\u1ee1 nh\u1eefng ng\u01b0\u1eddi kh\u00f4ng c\u00f3 b\u1ec7nh l\u00fd c\u00f3 th\u1ec3 \u0111i\u1ec1u tr\u1ecb b\u1eb1ng y khoa.<\/p>\n\n

\u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a m\u00e1y tr\u1ee3 th\u00ednh l\u00e0 g\u00ec?<\/h2>\n\n

M\u00e1y tr\u1ee3 th\u00ednh th\u00f4ng th\u01b0\u1eddng c\u1ef1c k\u1ef3 h\u1eefu \u00edch trong vi\u1ec7c gi\u00fap b\u1ec7nh nh\u00e2n m\u1ea5t th\u00ednh l\u1ef1c ph\u1ee5c h\u1ed3i th\u00ednh gi\u00e1c. Nh\u1eefng m\u00e1y tr\u1ee3 th\u00ednh si\u00eau nh\u1ecf n\u00e0y v\u1ec1 c\u01a1 b\u1ea3n thu th\u1eadp \u00e2m thanh t\u1eeb ng\u01b0\u1eddi n\u00f3i v\u00e0 m\u00f4i tr\u01b0\u1eddng r\u1ed3i ph\u00e1t ch\u00fang \u1edf m\u1ee9c \u00e2m l\u01b0\u1ee3ng l\u1edbn h\u01a1n nhi\u1ec1u (khu\u1ebfch \u0111\u1ea1i \u00e2m thanh) trong \u1ed1ng tai, \u0111\u1ec3 c\u00f3 nh\u1eefng s\u00f3ng \u00e2m m\u1ea1nh h\u01a1n truy\u1ec1n qua h\u1ec7 th\u1ed1ng th\u00ednh gi\u00e1c, gi\u00fap nh\u1eefng ng\u01b0\u1eddi m\u1ea5t th\u00ednh l\u1ef1c nghe \u0111\u01b0\u1ee3c nh\u1eefng \u00e2m thanh c\u00f3 \u00e2m l\u01b0\u1ee3ng b\u00ecnh th\u01b0\u1eddng n\u00e0y v\u00ec cu\u1ed1i c\u00f9ng ch\u00fang \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o \u1ed1ng tai v\u1edbi \u00e2m l\u01b0\u1ee3ng l\u1edbn h\u01a1n nhi\u1ec1u.<\/p>\n\n

\u0110eo m\u00e1y tr\u1ee3 th\u00ednh gi\u00fap ng\u01b0\u1eddi d\u00f9ng nghe t\u1ed1t h\u01a1n nhi\u1ec1u. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn vi\u1ec7c giao ti\u1ebfp d\u1ec5 d\u00e0ng h\u01a1n. Th\u00f4ng th\u01b0\u1eddng, th\u00ednh gi\u00e1c k\u00e9m d\u1eabn \u0111\u1ebfn giao ti\u1ebfp k\u00e9m v\u00e0 hi\u1ec3u l\u1ea7m. B\u1ec7nh nh\u00e2n m\u1ea5t th\u00ednh l\u1ef1c c\u0169ng g\u1eb7p kh\u00f3 kh\u0103n trong c\u00e1c t\u01b0\u01a1ng t\u00e1c x\u00e3 h\u1ed9i v\u00e0 do \u0111\u00f3 c\u00f3 th\u1ec3 ch\u1ecdn kh\u00f4ng tham gia c\u00e1c ho\u1ea1t \u0111\u1ed9ng x\u00e3 h\u1ed9i ho\u1eb7c t\u01b0\u01a1ng t\u00e1c v\u1edbi ng\u01b0\u1eddi kh\u00e1c. \u0110i\u1ec1u n\u00e0y d\u1eabn \u0111\u1ebfn s\u1ef1 c\u00f4 l\u1eadp, c\u00f4 \u0111\u01a1n v\u00e0 th\u01b0\u1eddng l\u00e0 tr\u1ea7m c\u1ea3m. Ph\u1ee5c h\u1ed3i th\u00ednh gi\u00e1c cho ph\u00e9p h\u1ecd giao ti\u1ebfp d\u1ec5 d\u00e0ng tr\u1edf l\u1ea1i v\u00e0 do \u0111\u00f3 tr\u00e1nh \u0111\u01b0\u1ee3c nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y. Ngo\u00e0i ra, khi h\u1ecd ti\u1ebfp t\u1ee5c t\u01b0\u01a1ng t\u00e1c v\u1edbi m\u1ecdi ng\u01b0\u1eddi v\u00e0 m\u00f4i tr\u01b0\u1eddng xung quanh b\u1eb1ng c\u00e1ch l\u1eafng nghe t\u1ed1t h\u01a1n, c\u00e1c nghi\u00ean c\u1ee9u \u0111\u00e3 ch\u1ec9 ra r\u1eb1ng h\u1ecd c\u00f3 th\u1ec3 l\u00e0m ch\u1eadm qu\u00e1 tr\u00ecnh kh\u1edfi ph\u00e1t c\u1ee7a b\u1ec7nh sa s\u00fat tr\u00ed tu\u1ec7.<\/p>\n\n

Nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a vi\u1ec7c \u0111eo m\u00e1y tr\u1ee3 th\u00ednh l\u00e0 ch\u00fang l\u00e0 thi\u1ebft b\u1ecb k\u1ef9 thu\u1eadt s\u1ed1, v\u00ec v\u1eady ch\u00fang c\u0169ng c\u00f3 th\u1ec3 b\u1ecb h\u1ecfng v\u00e0 g\u1eb7p c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 hi\u1ec7u su\u1ea5t. \u0110\u00f4i khi c\u00f3 hi\u1ec7n t\u01b0\u1ee3ng ph\u1ea3n h\u1ed3i \u00e2m thanh, t\u1ea1o ra ti\u1ebfng “eeee” ch\u00f3i tai t\u1eeb m\u00e1y tr\u1ee3 th\u00ednh. C\u00e1c v\u1ea5n \u0111\u1ec1 kh\u00e1c bao g\u1ed3m kh\u00f3 kh\u0103n khi v\u1eadn h\u00e0nh c\u00e1c n\u00fat nh\u1ecf tr\u00ean c\u00e1c m\u00e1y tr\u1ee3 th\u00ednh n\u00e0y.<\/p>\n\n

Tuy nhi\u00ean, v\u1edbi nhi\u1ec1u lo\u1ea1i m\u00e1y tr\u1ee3 th\u00ednh hi\u1ec7n nay c\u00f3 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch kh\u00f4ng d\u00e2y v\u1edbi \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh, vi\u1ec7c l\u1eadp tr\u00ecnh ch\u00fang tr\u00ean \u0111i\u1ec7n tho\u1ea1i d\u1ec5 d\u00e0ng h\u01a1n nhi\u1ec1u so v\u1edbi vi\u1ec7c nh\u1ea5n c\u00e1c n\u00fat nh\u1ecf tr\u00ean m\u00e1y tr\u1ee3 th\u00ednh. Pin c\u0169ng \u0111\u00e3 tr\u1edf th\u00e0nh lo\u1ea1i c\u00f3 th\u1ec3 s\u1ea1c l\u1ea1i, lo\u1ea1i b\u1ecf nhu c\u1ea7u l\u1eafp v\u00e0 th\u00e1o c\u00e1c vi\u00ean pin nh\u1ecf. M\u1ed9t v\u00e0i nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a m\u00e1y tr\u1ee3 th\u00ednh \u0111ang \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf nh\u1edd thi\u1ebft k\u1ebf v\u00e0 c\u00f4ng ngh\u1ec7 t\u1ed1t h\u01a1n.<\/p>\n\n

Gia \u0111\u00ecnh c\u00f3 th\u1ec3 gi\u00fap \u0111\u1ee1 nh\u01b0 th\u1ebf n\u00e0o?<\/h2>\n\n

Gia \u0111\u00ecnh c\u00f3 th\u1ec3 gi\u00fap \u0111\u1ee1 b\u1eb1ng c\u00e1ch khuy\u1ebfn kh\u00edch b\u1ec7nh nh\u00e2n m\u1ea5t th\u00ednh l\u1ef1c \u0111i kh\u00e1m v\u00e0 \u0111i\u1ec1u tr\u1ecb s\u1edbm. Th\u00f4ng th\u01b0\u1eddng, ch\u00ednh gia \u0111\u00ecnh l\u00e0 nh\u1eefng ng\u01b0\u1eddi \u0111\u1ed1i m\u1eb7t v\u1edbi c\u00e1c v\u1ea5n \u0111\u1ec1 giao ti\u1ebfp v\u00e0 c\u1ea3m th\u1ea5y r\u1ea5t n\u1ea3n l\u00f2ng so v\u1edbi b\u1ec7nh nh\u00e2n, v\u00ec b\u1ec7nh nh\u00e2n c\u00f3 th\u1ec3 ch\u1ec9 \u0111\u01a1n gi\u1ea3n l\u00e0 ch\u1ea5p nh\u1eadn vi\u1ec7c m\u1ea5t th\u00ednh l\u1ef1c c\u1ee7a m\u00ecnh v\u00e0 \u0111\u1ed1i ph\u00f3 b\u1eb1ng c\u00e1ch r\u00fat lui kh\u1ecfi c\u00e1c t\u01b0\u01a1ng t\u00e1c x\u00e3 h\u1ed9i.<\/p>\n\n

Gia \u0111\u00ecnh c\u0169ng c\u00f3 th\u1ec3 gi\u00fap \u0111\u1ee1 nh\u1eefng ng\u01b0\u1eddi l\u1edbn tu\u1ed5i, nh\u1eefng ng\u01b0\u1eddi c\u00f3 th\u1ec3 g\u1eb7p kh\u00f3 kh\u0103n trong vi\u1ec7c ch\u0103m s\u00f3c c\u00e1c m\u00e1y tr\u1ee3 th\u00ednh nh\u1ecf v\u00e0 l\u1eadp tr\u00ecnh ch\u00fang. H\u1ecd c\u0169ng c\u00f3 th\u1ec3 nh\u1eafc nh\u1edf nhau v\u1ec1 c\u00e1c th\u00f3i quen nghe t\u1ed1t, nh\u01b0 kh\u00f4ng nghe nh\u1ea1c \u1edf \u00e2m l\u01b0\u1ee3ng qu\u00e1 cao.<\/p>\n\n

Nh\u1eefng quan ni\u1ec7m sai l\u1ea7m v\u1ec1 m\u00e1y tr\u1ee3 th\u00ednh<\/h2>\n\n

3 quan ni\u1ec7m sai l\u1ea7m ch\u00ednh v\u1ec1 m\u00e1y tr\u1ee3 th\u00ednh l\u00e0:<\/p>\n\n

    \n
  1. M\u00e1y tr\u1ee3 th\u00ednh s\u1ebd l\u00e0m th\u00ednh gi\u00e1c c\u1ee7a t\u00f4i b\u1ecb qu\u00e1 t\u1ea3i v\u00e0 khi\u1ebfn t\u00ecnh tr\u1ea1ng th\u00ednh l\u1ef1c tr\u1edf n\u00ean t\u1ed3i t\u1ec7 h\u01a1n<\/li>\n\n\n\n
  2. M\u00e1y tr\u1ee3 th\u00ednh kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng v\u00ec ch\u00fang g\u1eb7p v\u1ea5n \u0111\u1ec1 v\u1edbi \u00e2m thanh b\u1ecb bi\u1ebfn d\u1ea1ng ho\u1eb7c ph\u1ea3n h\u1ed3i \u00e2m thanh (ti\u1ebfng “eeee” l\u1edbn)<\/li>\n\n\n\n
  3. M\u00e1y tr\u1ee3 th\u00ednh ch\u1ec9 d\u00e0nh cho ng\u01b0\u1eddi gi\u00e0. (B\u1ea5t k\u1ef3 ai c\u0169ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng m\u00e1y tr\u1ee3 th\u00ednh)<\/li>\n<\/ol>\n\n

    L\u00e0m th\u1ebf n\u00e0o t\u00f4i c\u00f3 th\u1ec3 ch\u1ecdn m\u1ed9t chi\u1ebfc m\u00e1y tr\u1ee3 th\u00ednh?<\/h2>\n\n

    C\u00e1ch t\u1ed1t nh\u1ea5t l\u00e0 tham kh\u1ea3o \u00fd ki\u1ebfn c\u1ee7a chuy\u00ean gia th\u00ednh h\u1ecdc, ng\u01b0\u1eddi chuy\u00ean cung c\u1ea5p v\u00e0 k\u00ea \u0111\u01a1n lo\u1ea1i v\u00e0 m\u1eabu m\u00e1y tr\u1ee3 th\u00ednh ch\u00ednh x\u00e1c cho nhu c\u1ea7u c\u1ee7a b\u1ea1n. H\u1ecd s\u1ebd ph\u1ea3i \u0111\u01b0a ra khuy\u1ebfn ngh\u1ecb d\u1ef1a tr\u00ean m\u00f4 h\u00ecnh v\u00e0 m\u1ee9c \u0111\u1ed9 m\u1ea5t th\u00ednh l\u1ef1c c\u1ee7a b\u1ea1n.<\/p>\n\n

    \u0110\u1ed3ng th\u1eddi, b\u1ec7nh nh\u00e2n n\u00ean cho chuy\u00ean gia th\u00ednh h\u1ecdc bi\u1ebft nh\u1eefng m\u00f4i tr\u01b0\u1eddng ch\u00ednh m\u00e0 vi\u1ec7c giao ti\u1ebfp g\u1eb7p v\u1ea5n \u0111\u1ec1 \u0111\u1ec3 chuy\u00ean gia th\u00ednh h\u1ecdc<\/a> c\u00f3 th\u1ec3 l\u1eadp tr\u00ecnh m\u00e1y tr\u1ee3 th\u00ednh m\u1ed9t c\u00e1ch ph\u00f9 h\u1ee3p. C\u00f3 nhi\u1ec1u m\u1eabu m\u00e3 kh\u00e1c nhau, t\u1eeb nh\u1eefng m\u00e1y tr\u1ee3 th\u00ednh si\u00eau nh\u1ecf g\u1ea7n nh\u01b0 “v\u00f4 h\u00ecnh” khi \u0111\u01b0\u1ee3c l\u1eafp v\u00e0o \u1ed1ng tai cho \u0111\u1ebfn c\u00e1c m\u1eabu kh\u00e1c t\u1ea1o ra \u00e2m thanh m\u1ea1nh m\u1ebd h\u01a1n v\u00e0 c\u00f3 th\u1ec3 \u0111eo sau tai.<\/p>\n\n

    M\u00e1y tr\u1ee3 th\u00ednh c\u00f3 \u0111\u1eaft kh\u00f4ng?<\/h2>\n\n

    Gi\u00e1 m\u00e1y tr\u1ee3 th\u00ednh c\u00f3 bi\u00ean \u0111\u1ed9 r\u1ea5t r\u1ed9ng, t\u1eeb 1.500 $ cho m\u1ed9t m\u1eabu \u0111\u01a1n gi\u1ea3n \u0111\u1ebfn kho\u1ea3ng 6.000 $ cho m\u1ed9t m\u1eabu r\u1ea5t tinh vi. C\u00e1c kho\u1ea3n tr\u1ee3 c\u1ea5p hi\u1ec7n \u0111ang c\u00f3 s\u1eb5n cho c\u00e1c b\u1ec7nh nh\u00e2n cao tu\u1ed5i ng\u01b0\u1eddi Singapore t\u1eeb 60 tu\u1ed5i tr\u1edf l\u00ean. H\u1ecd ph\u1ea3i \u0111\u00e1p \u1ee9ng m\u1ed9t s\u1ed1 b\u00e0i ki\u1ec3m tra v\u1ec1 kh\u1ea3 n\u0103ng t\u00e0i ch\u00ednh \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh m\u1ee9c tr\u1ee3 c\u1ea5p m\u00e0 h\u1ecd c\u00f3 th\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c. C\u00e1c kho\u1ea3n tr\u1ee3 c\u1ea5p n\u00e0y hi\u1ec7n ch\u1ec9 c\u00f3 s\u1eb5n n\u1ebfu b\u1ea1n mua ch\u00fang t\u1eeb c\u00e1c b\u1ec7nh vi\u1ec7n thu\u1ed9c h\u1ec7 th\u1ed1ng ch\u00ednh ph\u1ee7.<\/p>\n","protected":false},"excerpt":{"rendered":"

    V\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p \u1edf gi\u1edbi tr\u1ebb l\u00e0 g\u00ec? Nh\u00ecn chung, gi\u1edbi tr\u1ebb t\u1ea1i \u0111\u1ecba ph\u01b0\u01a1ng c\u00f3 th\u00ednh gi\u00e1c t\u1ed1t. Tuy nhi\u00ean, h\u1ecd th\u01b0\u1eddng kh\u00f4ng ch\u00fa \u00fd \u0111\u1ebfn c\u00e1c th\u00f3i quen v\u00e0 v\u1ec7 sinh th\u00ednh gi\u00e1c t\u1ed1t. H\u1ecd c\u00f3 xu h\u01b0\u1edbng xem th\u00ednh gi\u00e1c t\u1ed1t c\u1ee7a m\u00ecnh l\u00e0 \u0111i\u1ec1u hi\u1ec3n nhi\u00ean v\u00e0 do \u0111\u00f3 ch\u1ecdn […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_joinchat":[],"footnotes":""},"categories":[11],"tags":[],"page-category":[],"class_list":["post-7593","post","type-post","status-publish","format-standard","hentry","category-chua-phan-loai"],"acf":[],"yoast_head":"\nM\u1ea5t th\u00ednh l\u1ef1c v\u00e0 M\u00e1y tr\u1ee3 th\u00ednh - Ph\u1eabu thu\u1eadt Tai M\u0169i H\u1ecdng \u0110\u1ea7u & C\u1ed5 Barrie Tan, B\u00e1c s\u0129 Tai M\u0169i H\u1ecdng & Chuy\u00ean gia Tai M\u0169i H\u1ecdng<\/title>\n<meta name=\"description\" content=\"T\u00ecm hi\u1ec3u nguy\u00ean nh\u00e2n g\u00e2y m\u1ea5t th\u00ednh l\u1ef1c v\u00e0 c\u00e1ch m\u00e1y tr\u1ee3 th\u00ednh c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng giao ti\u1ebfp, ch\u1ea5t l\u01b0\u1ee3ng cu\u1ed9c s\u1ed1ng v\u00e0 \u0111\u1ed9 r\u00f5 c\u1ee7a th\u00ednh gi\u00e1c. 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