{"id":489033,"date":"2025-09-11T10:52:14","date_gmt":"2025-09-11T03:52:14","guid":{"rendered":"https:\/\/hoanghamobile.com\/tin-tuc\/?p=489033"},"modified":"2025-09-11T10:52:14","modified_gmt":"2025-09-11T03:52:14","slug":"optical","status":"publish","type":"post","link":"https:\/\/hoanghamobile.com\/tin-tuc\/optical\/","title":{"rendered":"C\u1ed5ng Optical l\u00e0 g\u00ec? C\u00e1ch nh\u1eadn bi\u1ebft v\u00e0 k\u1ebft n\u1ed1i \u00e2m thanh v\u1edbi tivi qua c\u1ed5ng Optical"},"content":{"rendered":"

Li\u1ec7u b\u1ea1n c\u00f3 bi\u1ebft <\/span>c\u1ed5ng Optical l\u00e0 g\u00ec<\/b>, t\u1ea1i sao n\u00f3 l\u1ea1i quan tr\u1ecdng trong vi\u1ec7c truy\u1ec1n t\u1ea3i \u00e2m thanh v\u00e0 l\u00e0m sao \u0111\u1ec3 k\u1ebft n\u1ed1i \u0111\u00fang c\u00e1ch? N\u1ebfu b\u1ea1n \u0111ang t\u00ecm c\u00e1ch n\u00e2ng c\u1ea5p tr\u1ea3i nghi\u1ec7m \u00e2m thanh t\u1eeb tivi l\u00ean m\u1ed9t t\u1ea7m cao m\u1edbi m\u00e0 kh\u00f4ng c\u1ea7n \u0111\u1ebfn d\u00e2y r\u1ee3 ph\u1ee9c t\u1ea1p, th\u00ec c\u1ed5ng quang h\u1ecdc ch\u00ednh l\u00e0 \u201cch\u00eca kh\u00f3a\u201d b\u1ea1n \u0111ang t\u00ecm ki\u1ebfm. H\u00e3y c\u00f9ng kh\u00e1m ph\u00e1 c\u00e1ch nh\u1eadn bi\u1ebft v\u00e0 k\u1ebft n\u1ed1i \u00e2m thanh qua c\u1ed5ng n\u00e0y m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n nh\u01b0ng hi\u1ec7u qu\u1ea3 \u0111\u1ebfn b\u1ea5t ng\u1edd.<\/span><\/p>\n

C\u1ed5ng Optical l\u00e0 g\u00ec?<\/b><\/h2>\n

\u0110\u00e2y l\u00e0 m\u1ed9t chu\u1ea9n giao ti\u1ebfp \u00e2m thanh k\u1ef9 thu\u1eadt s\u1ed1 hi\u1ec7n \u0111\u1ea1i, \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p ph\u1ed5 bi\u1ebfn tr\u00ean c\u00e1c d\u00f2ng Smart Tivi \u0111\u1eddi m\u1edbi. \u0110i\u1ec3m \u0111\u1eb7c bi\u1ec7t c\u1ee7a lo\u1ea1i c\u1ed5ng n\u00e0y n\u1eb1m \u1edf kh\u1ea3 n\u0103ng truy\u1ec1n t\u00edn hi\u1ec7u b\u1eb1ng \u00e1nh s\u00e1ng, mang l\u1ea1i ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh trung th\u1ef1c, s\u1eafc n\u00e9t v\u00e0 kh\u00f4ng b\u1ecb suy hao nh\u01b0 c\u00e1c ph\u01b0\u01a1ng th\u1ee9c truy\u1ec1n th\u1ed1ng kh\u00e1c. V\u1edbi thi\u1ebft k\u1ebf \u0111\u01a1n gi\u1ea3n, ch\u1ec9 c\u1ea7n m\u1ed9t s\u1ee3i c\u00e1p quang nh\u1ecf g\u1ecdn, b\u1ea1n \u0111\u00e3 c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i tivi v\u1edbi h\u1ec7 th\u1ed1ng \u00e2m thanh ngo\u00e0i m\u00e0 kh\u00f4ng g\u1eb7p b\u1ea5t k\u1ef3 tr\u1edf ng\u1ea1i n\u00e0o.<\/span><\/p>\n

\"optical-1\"<\/picture><\/p>\n

Lo\u1ea1i c\u00e1p n\u00e0y c\u00f2n \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi t\u00ean g\u1ecdi d\u00e2y quang k\u1ef9 thu\u1eadt s\u1ed1, th\u01b0\u1eddng \u0111\u01b0\u1ee3c c\u1ea5u t\u1ea1o t\u1eeb c\u00e1c s\u1ee3i d\u1eabn si\u00eau nh\u1ecf \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 b\u1edfi l\u1edbp v\u1ecf h\u1ee3p ch\u1ea5t Duraflex si\u00eau b\u1ec1n. Ngo\u00e0i ra, b\u1ec1 m\u1eb7t c\u00e1p c\u00f2n ph\u1ee7 m\u1ed9t l\u1edbp v\u1eadt li\u1ec7u chuy\u00ean bi\u1ec7t gi\u00fap \u0111\u1ecbnh h\u01b0\u1edbng t\u00edn hi\u1ec7u \u0111i \u0111\u00fang l\u1ed9 tr\u00ecnh, t\u1eeb \u0111\u00f3 h\u1ea1n ch\u1ebf t\u1ed1i \u0111a hi\u1ec7n t\u01b0\u1ee3ng nhi\u1ec5u t\u00edn hi\u1ec7u do s\u00f3ng \u0111i\u1ec7n t\u1eeb hay t\u00e1c \u0111\u1ed9ng t\u1eeb m\u00f4i tr\u01b0\u1eddng.<\/span><\/p>\n

C\u00f4ng d\u1ee5ng c\u1ee7a c\u1ed5ng Optical<\/b><\/h2>\n

C\u1ed5ng k\u1ebft n\u1ed1i quang \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c n\u00e2ng t\u1ea7m ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh khi k\u1ebft n\u1ed1i Tivi v\u1edbi c\u00e1c thi\u1ebft b\u1ecb ngo\u1ea1i vi nh\u01b0 loa soundbar, ampli, d\u00e0n karaoke hay h\u1ec7 th\u1ed1ng r\u1ea1p h\u00e1t t\u1ea1i gia. Kh\u00f4ng gi\u1ed1ng nh\u01b0 c\u00e1c ki\u1ec3u k\u1ebft n\u1ed1i th\u00f4ng th\u01b0\u1eddng, c\u00e1p n\u00e0y truy\u1ec1n d\u1eabn t\u00edn hi\u1ec7u b\u1eb1ng \u00e1nh s\u00e1ng, cho ph\u00e9p \u00e2m thanh \u0111\u01b0\u1ee3c truy\u1ec1n \u0111i \u1edf t\u1ed1c \u0111\u1ed9 cao m\u00e0 v\u1eabn \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 chi ti\u1ebft, trung th\u1ef1c v\u00e0 r\u00f5 r\u00e0ng trong t\u1eebng d\u1ea3i t\u1ea7n.<\/span><\/p>\n

\"optical-2\"<\/picture><\/p>\n

S\u1ef1 kh\u00e1c bi\u1ec7t d\u1ec5 nh\u1eadn th\u1ea5y khi s\u1eed d\u1ee5ng c\u1ed5ng n\u00e0y l\u00e0 kh\u1ea3 n\u0103ng t\u00e1i hi\u1ec7n kh\u00f4ng gian \u00e2m thanh r\u1ed9ng m\u1edf, \u0111\u1ed9 s\u00e2u t\u1ed1t, gi\u00fap ng\u01b0\u1eddi nghe c\u1ea3m nh\u1eadn r\u00f5 r\u00e0ng t\u1eebng hi\u1ec7u \u1ee9ng, ti\u1ebfng \u0111\u1ed9ng \u2013 t\u1eeb ti\u1ebfng gi\u00f3 r\u00ec r\u00e0o, ti\u1ebfng b\u01b0\u1edbc ch\u00e2n nh\u1eb9 nh\u00e0ng cho \u0111\u1ebfn nh\u1eefng pha ch\u00e1y n\u1ed5 m\u00e3n nh\u00e3n trong phim h\u00e0nh \u0111\u1ed9ng. \u0110\u1eb7c bi\u1ec7t, n\u1ebfu b\u1ea1n l\u00e0 ng\u01b0\u1eddi y\u00eau th\u00edch gi\u1ea3i tr\u00ed t\u1ea1i gia, th\u01b0\u1eddng xuy\u00ean xem phim, h\u00e1t karaoke hay nghe nh\u1ea1c ch\u1ea5t l\u01b0\u1ee3ng cao, th\u00ec vi\u1ec7c s\u1eed d\u1ee5ng d\u00e2y c\u1ed5ng quan s\u1ebd mang l\u1ea1i tr\u1ea3i nghi\u1ec7m v\u01b0\u1ee3t tr\u1ed9i so v\u1edbi c\u00e1c ph\u01b0\u01a1ng ph\u00e1p k\u1ebft n\u1ed1i kh\u00e1c.<\/span><\/p>\n

\u01afu, nh\u01b0\u1ee3c \u0111i\u1ec3m khi k\u1ebft n\u1ed1i qua c\u1ed5ng Optical<\/b><\/h2>\n

K\u1ebft n\u1ed1i qua c\u1ed5ng quang l\u00e0 c\u00e1ch truy\u1ec1n t\u00edn hi\u1ec7u \u00e2m thanh k\u1ef9 thu\u1eadt s\u1ed1 v\u1edbi ch\u1ea5t l\u01b0\u1ee3ng cao v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng nhi\u1ec5u t\u1ed1t. Tuy nhi\u00ean, b\u00ean c\u1ea1nh nh\u1eefng \u01b0u \u0111i\u1ec3m, c\u1ed5ng c\u00e1p n\u00e0y c\u0169ng c\u00f3 m\u1ed9t s\u1ed1 h\u1ea1n ch\u1ebf nh\u1ea5t \u0111\u1ecbnh c\u1ea7n l\u01b0u \u00fd.<\/span><\/p>\n

\u01afu \u0111i\u1ec3m<\/b><\/h3>\n

C\u1ed5ng k\u1ebft n\u1ed1i quang hi\u1ec7n l\u00e0 m\u1ed9t trong nh\u1eefng ph\u01b0\u01a1ng th\u1ee9c k\u1ebft n\u1ed1i \u00e2m thanh k\u1ef9 thu\u1eadt s\u1ed1 \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng tr\u00ean nhi\u1ec1u thi\u1ebft b\u1ecb nghe nh\u00ecn hi\u1ec7n \u0111\u1ea1i nh\u01b0 Tivi, \u0111\u1ea7u ph\u00e1t, d\u00e0n karaoke hay h\u1ec7 th\u1ed1ng gi\u1ea3i tr\u00ed gia \u0111\u00ecnh. Nh\u1edd s\u1eed d\u1ee5ng t\u00edn hi\u1ec7u \u00e1nh s\u00e1ng \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u, lo\u1ea1i c\u1ed5ng n\u00e0y cho ph\u00e9p truy\u1ec1n \u00e2m nhanh ch\u00f3ng, ch\u00ednh x\u00e1c m\u00e0 kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi nhi\u1ec5u \u0111i\u1ec7n t\u1eeb hay suy hao t\u00edn hi\u1ec7u nh\u01b0 c\u00e1c lo\u1ea1i c\u00e1p truy\u1ec1n th\u1ed1ng kh\u00e1c.<\/span><\/p>\n

\"optical-3\"<\/picture><\/p>\n

M\u1ed9t trong nh\u1eefng \u0111i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a c\u1ed5ng xu\u1ea5t \u00e2m thanh quang l\u00e0 kh\u1ea3 n\u0103ng duy tr\u00ec hi\u1ec7u su\u1ea5t truy\u1ec1n d\u1eabn \u1ed5n \u0111\u1ecbnh, \u0111\u1eb7c bi\u1ec7t khi ph\u00e1t n\u1ed9i dung \u00e2m thanh ch\u1ea5t l\u01b0\u1ee3ng cao. Khi k\u1ebft h\u1ee3p v\u1edbi c\u00e1c thi\u1ebft b\u1ecb \u00e2m thanh chuy\u00ean d\u1ee5ng nh\u01b0 Amply, c\u1ee5c \u0111\u1ea9y c\u00f4ng su\u1ea5t ho\u1eb7c receiver, k\u1ebft n\u1ed1i c\u1ed5ng quang h\u1ed7 tr\u1ee3 t\u00e1i t\u1ea1o \u00e2m thanh ch\u00e2n th\u1ef1c, s\u1eafc n\u00e9t, mang l\u1ea1i tr\u1ea3i nghi\u1ec7m nghe t\u1ed1t h\u01a1n cho ng\u01b0\u1eddi d\u00f9ng.<\/span><\/p>\n

Ngo\u00e0i ra, c\u00e1p <\/span>Optical <\/b>c\u00f3 thi\u1ebft k\u1ebf nh\u1ecf g\u1ecdn, d\u1ec5 d\u00e0ng l\u1eafp \u0111\u1eb7t v\u00e0 s\u1eed d\u1ee5ng trong nhi\u1ec1u kh\u00f4ng gian kh\u00e1c nhau m\u00e0 v\u1eabn \u0111\u1ea3m b\u1ea3o th\u1ea9m m\u1ef9. S\u1ef1 t\u01b0\u01a1ng th\u00edch r\u1ed9ng r\u00e3i v\u1edbi nhi\u1ec1u thi\u1ebft b\u1ecb c\u0169ng gi\u00fap ng\u01b0\u1eddi d\u00f9ng d\u1ec5 d\u00e0ng l\u1ef1a ch\u1ecdn, n\u00e2ng c\u1ea5p h\u1ec7 th\u1ed1ng m\u00e0 kh\u00f4ng c\u1ea7n thay \u0111\u1ed5i qu\u00e1 nhi\u1ec1u linh ki\u1ec7n.<\/span><\/p>\n

Nh\u01b0\u1ee3c \u0111i\u1ec3m<\/b><\/h3>\n

M\u1eb7c d\u00f9 c\u1ed5ng quang mang l\u1ea1i nhi\u1ec1u l\u1ee3i \u00edch trong vi\u1ec7c truy\u1ec1n t\u00edn hi\u1ec7u \u00e2m thanh, song v\u1eabn t\u1ed3n t\u1ea1i m\u1ed9t s\u1ed1 h\u1ea1n ch\u1ebf \u0111\u00e1ng l\u01b0u \u00fd khi so s\u00e1nh v\u1edbi c\u00e1c chu\u1ea9n k\u1ebft n\u1ed1i hi\u1ec7n \u0111\u1ea1i kh\u00e1c. Tr\u01b0\u1edbc h\u1ebft, d\u00e2y c\u00e1p lo\u1ea1i n\u00e0y ch\u1ec9 h\u1ed7 tr\u1ee3 truy\u1ec1n \u00e2m thanh, kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng \u0111\u1ea3m nhi\u1ec7m vi\u1ec7c chuy\u1ec3n t\u1ea3i h\u00ecnh \u1ea3nh, khi\u1ebfn ng\u01b0\u1eddi d\u00f9ng c\u1ea7n th\u00eam k\u1ebft n\u1ed1i b\u1ed5 sung n\u1ebfu mu\u1ed1n truy\u1ec1n t\u00edn hi\u1ec7u video. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 g\u00e2y b\u1ea5t ti\u1ec7n trong qu\u00e1 tr\u00ecnh thi\u1ebft l\u1eadp h\u1ec7 th\u1ed1ng gi\u1ea3i tr\u00ed t\u00edch h\u1ee3p.<\/span><\/p>\n

\"optical-4\"<\/picture><\/p>\n

Ngo\u00e0i ra, c\u1ed5ng quang ch\u01b0a \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u v\u1edbi c\u00e1c chu\u1ea9n \u00e2m thanh ti\u00ean ti\u1ebfn nh\u01b0 Dolby TrueHD hay DTS HD Master Audio \u2014 nh\u1eefng \u0111\u1ecbnh d\u1ea1ng th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n trong c\u00e1c \u0111\u0129a Blu-ray ho\u1eb7c n\u1ed9i dung ch\u1ea5t l\u01b0\u1ee3ng cao. \u0110i\u1ec1u n\u00e0y \u0111\u1ed3ng ngh\u0129a v\u1edbi vi\u1ec7c khi s\u1eed d\u1ee5ng c\u1ed5ng quang , ng\u01b0\u1eddi d\u00f9ng s\u1ebd kh\u00f4ng th\u1ec3 tr\u1ea3i nghi\u1ec7m \u0111\u1ea7y \u0111\u1ee7 \u0111\u1ed9 chi ti\u1ebft v\u00e0 chi\u1ec1u s\u00e2u v\u1ed1n c\u00f3 trong c\u00e1c n\u1ed9i dung \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a b\u1eb1ng nh\u1eefng chu\u1ea9n n\u00f3i tr\u00ean.<\/span><\/p>\n

M\u1ed9t \u0111i\u1ec3m tr\u1eeb kh\u00e1c l\u00e0 d\u00e2y k\u1ebft n\u1ed1i quang h\u1ecdc th\u01b0\u1eddng kh\u00e1 nh\u1ea1y, d\u1ec5 g\u00e3y ho\u1eb7c t\u1ed5n h\u1ea1i n\u1ebfu b\u1ecb b\u1ebb cong ho\u1eb7c va ch\u1ea1m m\u1ea1nh. \u0110i\u1ec1u n\u00e0y \u0111\u00f2i h\u1ecfi ng\u01b0\u1eddi d\u00f9ng ph\u1ea3i l\u1eafp \u0111\u1eb7t, b\u1ea3o qu\u1ea3n c\u1ea9n th\u1eadn \u0111\u1ec3 duy tr\u00ec hi\u1ec7u n\u0103ng \u1ed5n \u0111\u1ecbnh. B\u00ean c\u1ea1nh \u0111\u00f3, \u0111\u1ed9 d\u00e0i k\u1ebft n\u1ed1i c\u0169ng b\u1ecb gi\u1edbi h\u1ea1n nh\u1ea5t \u0111\u1ecbnh, kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi nh\u1eefng kh\u00f4ng gian l\u1edbn c\u1ea7n k\u00e9o d\u00e2y xa.<\/span><\/p>\n

C\u00e1ch nh\u1eadn bi\u1ebft tivi c\u00f3 c\u1ed5ng Optical<\/b><\/h2>\n

\u0110\u1ec3 x\u00e1c \u0111\u1ecbnh xem thi\u1ebft b\u1ecb c\u00f3 h\u1ed7 tr\u1ee3 c\u1ed5ng n\u00e0y hay kh\u00f4ng, b\u1ea1n ch\u1ec9 c\u1ea7n t\u00ecm ki\u1ebfm m\u1ed9t \u0111\u1ea7u ra \u0111\u1eb7c tr\u01b0ng c\u00f3 h\u00ecnh d\u1ea1ng jack vu\u00f4ng nh\u1ecf g\u1ecdn, th\u01b0\u1eddng \u0111\u01b0\u1ee3c in nh\u00e3n r\u00f5 r\u00e0ng v\u1edbi c\u00e1c k\u00fd hi\u1ec7u nh\u01b0 DIGITAL AUDIO OUT ngay tr\u00ean th\u00e2n m\u00e1y ho\u1eb7c b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n ph\u00eda sau tivi.<\/span><\/p>\n

\"optical-5\"<\/picture><\/p>\n

\u0110\u00e2y l\u00e0 m\u1ed9t c\u1ed5ng ph\u00e1t t\u00edn hi\u1ec7u \u00e2m thanh d\u01b0\u1edbi d\u1ea1ng s\u00f3ng \u00e1nh s\u00e1ng, gi\u00fap truy\u1ec1n t\u1ea3i d\u1eef li\u1ec7u v\u1edbi ch\u1ea5t l\u01b0\u1ee3ng cao v\u00e0 h\u1ea1n ch\u1ebf t\u1ed1i \u0111a nhi\u1ec5u \u0111i\u1ec7n t\u1eeb. Vi\u1ec7c nh\u1eadn bi\u1ebft v\u1ecb tr\u00ed c\u1ed5ng quang kh\u00e1 \u0111\u01a1n gi\u1ea3n, b\u1ea1n c\u00f3 th\u1ec3 m\u1edf ph\u1ea7n h\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng ho\u1eb7c ki\u1ec3m tra tr\u1ef1c ti\u1ebfp tr\u00ean c\u00e1c l\u1ed7 c\u1eafm \u1edf m\u1eb7t sau ho\u1eb7c b\u00ean h\u00f4ng thi\u1ebft b\u1ecb.<\/span><\/p>\n

K\u1ebft n\u1ed1i n\u00e0y \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u l\u1ea7n \u0111\u1ea7u t\u1eeb n\u0103m 1983 v\u00e0 nhanh ch\u00f3ng tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn nh\u1edd t\u00ednh \u1ed5n \u0111\u1ecbnh c\u00f9ng kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi nhi\u1ec1u thi\u1ebft b\u1ecb \u00e2m thanh ngo\u00e0i nh\u01b0 loa, amply hay h\u1ec7 th\u1ed1ng r\u1ea1p h\u00e1t gia \u0111\u00ecnh. Do \u0111\u00f3, c\u1ed5ng n\u00e0y kh\u00f4ng ch\u1ec9 xu\u1ea5t hi\u1ec7n tr\u00ean c\u00e1c d\u00f2ng s\u1ea3n ph\u1ea9m m\u1edbi m\u00e0 c\u00f2n \u0111\u01b0\u1ee3c trang b\u1ecb tr\u00ean nhi\u1ec1u m\u1eabu tivi th\u1ebf h\u1ec7 c\u0169, t\u1ea1o thu\u1eadn l\u1ee3i cho ng\u01b0\u1eddi d\u00f9ng trong vi\u1ec7c n\u00e2ng c\u1ea5p ho\u1eb7c m\u1edf r\u1ed9ng h\u1ec7 th\u1ed1ng \u00e2m thanh.<\/span><\/p>\n

H\u01b0\u1edbng d\u1eabn c\u00e1ch k\u1ebft n\u1ed1i thi\u1ebft b\u1ecb \u00e2m thanh v\u1edbi tivi qua c\u1ed5ng Optical<\/b><\/h2>\n

Tr\u01b0\u1edbc ti\u00ean, h\u00e3y l\u1ea5y \u0111\u1ea7u d\u00e2y k\u1ebft n\u1ed1i quang h\u1ecdc c\u1eafm ch\u1eafc ch\u1eafn v\u00e0o c\u1ed5ng t\u01b0\u01a1ng \u1ee9ng tr\u00ean tivi, \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u r\u00f5 r\u00e0ng. \u0110\u1ea7u c\u00f2n l\u1ea1i c\u1ee7a d\u00e2y s\u1ebd \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi thi\u1ebft b\u1ecb \u00e2m thanh, ch\u1eb3ng h\u1ea1n nh\u01b0 d\u00e0n loa thanh ho\u1eb7c amply, \u0111\u1ea3m b\u1ea3o k\u1ebft n\u1ed1i v\u1eeba kh\u00edt v\u00e0 kh\u00f4ng b\u1ecb l\u1ecfng l\u1ebbo. Ti\u1ebfp theo, b\u1eadt ngu\u1ed3n cho thi\u1ebft b\u1ecb \u00e2m thanh \u0111\u1ec3 chu\u1ea9n b\u1ecb nh\u1eadn t\u00edn hi\u1ec7u t\u1eeb tivi.<\/span><\/p>\n

\"optical-6\"<\/picture><\/p>\n

B\u01b0\u1edbc ti\u1ebfp theo, b\u1ea1n c\u1ea7n k\u00edch ho\u1ea1t ch\u1ebf \u0111\u1ed9 nh\u1eadn t\u00edn hi\u1ec7u qua c\u1ed5ng tr\u00ean loa ho\u1eb7c amply. Thao t\u00e1c n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1ch nh\u1ea5n n\u00fat Input ho\u1eb7c Source tr\u00ean remote \u0111i\u1ec1u khi\u1ec3n c\u1ee7a thi\u1ebft b\u1ecb, sau \u0111\u00f3 ch\u1ecdn \u0111\u00fang ch\u1ebf \u0111\u1ed9 <\/span>Optical <\/b>ho\u1eb7c Digital Audio. Trong tr\u01b0\u1eddng h\u1ee3p kh\u00f4ng c\u00f3 remote, b\u1ea1n c\u0169ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c n\u00fat b\u1ea5m tr\u1ef1c ti\u1ebfp tr\u00ean th\u00e2n loa \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i \u0111\u1ea7u v\u00e0o t\u00edn hi\u1ec7u.<\/span><\/p>\n

Khi thi\u1ebft b\u1ecb \u00e2m thanh b\u00e1o hi\u1ec7u \u0111\u00e3 nh\u1eadn \u0111\u01b0\u1ee3c t\u00edn hi\u1ec7u th\u00e0nh c\u00f4ng, th\u01b0\u1eddng l\u00e0 b\u1eb1ng \u0111\u00e8n LED s\u00e1ng ho\u1eb7c thay \u0111\u1ed5i m\u00e0u s\u1eafc, b\u1ea1n \u0111\u00e3 ho\u00e0n t\u1ea5t vi\u1ec7c k\u1ebft n\u1ed1i. L\u00fac n\u00e0y, ch\u1ec9 c\u1ea7n b\u1eadt tivi v\u00e0 ki\u1ec3m tra \u00e2m thanh ph\u00e1t ra t\u1eeb loa \u0111\u1ec3 t\u1eadn h\u01b0\u1edfng tr\u1ea3i nghi\u1ec7m nghe s\u1ed1ng \u0111\u1ed9ng v\u00e0 ch\u00e2n th\u1ef1c h\u01a1n r\u1ea5t nhi\u1ec1u so v\u1edbi loa t\u00edch h\u1ee3p s\u1eb5n.<\/span><\/p>\n

S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u1ed5ng Optical v\u00e0 c\u00e1c c\u1ed5ng \u00e2m thanh kh\u00e1c<\/b><\/h2>\n

\u0110i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a c\u1ed5ng c\u00e1p n\u00e0y l\u00e0 s\u1eed d\u1ee5ng t\u00edn hi\u1ec7u quang h\u1ecdc \u0111\u1ec3 truy\u1ec1n \u00e2m thanh d\u01b0\u1edbi d\u1ea1ng \u00e1nh s\u00e1ng, gi\u00fap gi\u1ea3m thi\u1ec3u hi\u1ec7n t\u01b0\u1ee3ng nhi\u1ec5u v\u00e0 suy hao t\u00edn hi\u1ec7u do t\u00e1c \u0111\u1ed9ng c\u1ee7a \u0111i\u1ec7n t\u1eeb, t\u1eeb \u0111\u00f3 mang l\u1ea1i ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh \u1ed5n \u0111\u1ecbnh v\u00e0 trung th\u1ef1c. Tuy nhi\u00ean, c\u1ed5ng quang ch\u1ec9 truy\u1ec1n \u0111\u01b0\u1ee3c d\u1eef li\u1ec7u \u00e2m thanh, kh\u00f4ng h\u1ed7 tr\u1ee3 t\u00edn hi\u1ec7u video, do v\u1eady ng\u01b0\u1eddi d\u00f9ng th\u01b0\u1eddng ph\u1ea3i k\u1ebft h\u1ee3p v\u1edbi c\u00e1c lo\u1ea1i c\u1ed5ng kh\u00e1c \u0111\u1ec3 truy\u1ec1n h\u00ecnh \u1ea3nh.<\/span><\/p>\n

\"optical-7\"<\/picture><\/p>\n

Kh\u00e1c v\u1edbi c\u00f4ng quang h\u1ecdc, c\u1ed5ng HDMI ARC (Audio Return Channel) kh\u00f4ng nh\u1eefng truy\u1ec1n \u00e2m thanh k\u1ef9 thu\u1eadt s\u1ed1 m\u00e0 c\u00f2n c\u00f3 th\u1ec3 truy\u1ec1n c\u1ea3 t\u00edn hi\u1ec7u h\u00ecnh \u1ea3nh v\u00e0 \u0111i\u1ec1u khi\u1ec3n thi\u1ebft b\u1ecb th\u00f4ng qua m\u1ed9t d\u00e2y c\u00e1p duy nh\u1ea5t. \u0110\u00e2y l\u00e0 l\u1ef1a ch\u1ecdn t\u1ed1i \u01b0u cho h\u1ec7 th\u1ed1ng gi\u1ea3i tr\u00ed hi\u1ec7n \u0111\u1ea1i, h\u1ed7 tr\u1ee3 nhi\u1ec1u \u0111\u1ecbnh d\u1ea1ng \u00e2m thanh cao c\u1ea5p nh\u01b0 Dolby Atmos, DTS:X.<\/span><\/p>\n

Trong khi \u0111\u00f3, c\u00e1p coaxial s\u1eed d\u1ee5ng t\u00edn hi\u1ec7u \u0111i\u1ec7n t\u1eed truy\u1ec1n qua d\u00e2y \u0111\u1ed3ng, c\u0169ng h\u1ed7 tr\u1ee3 \u00e2m thanh s\u1ed1 nh\u01b0ng d\u1ec5 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi nhi\u1ec5u h\u01a1n c\u1ed5ng quan h\u1ecdc. C\u00f2n k\u1ebft n\u1ed1i Bluetooth l\u1ea1i \u01b0u ti\u00ean s\u1ef1 ti\u1ec7n l\u1ee3i v\u00e0 kh\u00f4ng c\u1ea7n d\u00e2y d\u1eabn, nh\u01b0ng ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh c\u00f3 th\u1ec3 kh\u00f4ng \u1ed5n \u0111\u1ecbnh v\u00e0 b\u1ecb tr\u1ec5 so v\u1edbi c\u00e1c ph\u01b0\u01a1ng th\u1ee9c c\u00f3 d\u00e2y.<\/span><\/p>\n

D\u00e2y c\u00e1p Optical lo\u1ea1i n\u00e0o t\u1ed1t?<\/b><\/h2>\n

Khi l\u1ef1a ch\u1ecdn d\u00e2y c\u00e1p k\u1ebft n\u1ed1i quang h\u1ecdc ch\u1ea5t l\u01b0\u1ee3ng, ng\u01b0\u1eddi d\u00f9ng c\u1ea7n quan t\u00e2m \u0111\u1ebfn nhi\u1ec1u y\u1ebfu t\u1ed1 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00edn hi\u1ec7u \u00e2m thanh \u0111\u01b0\u1ee3c truy\u1ec1n t\u1ea3i \u1ed5n \u0111\u1ecbnh v\u00e0 r\u00f5 n\u00e9t nh\u1ea5t. Tr\u01b0\u1edbc h\u1ebft, v\u1eadt li\u1ec7u s\u1ea3n xu\u1ea5t d\u00e2y c\u00e1p \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c duy tr\u00ec ch\u1ea5t l\u01b0\u1ee3ng t\u00edn hi\u1ec7u. C\u00e1c lo\u1ea1i c\u00e1p quang t\u1ed1t th\u01b0\u1eddng s\u1eed d\u1ee5ng s\u1ee3i th\u1ee7y tinh ho\u1eb7c nh\u1ef1a quang h\u1ecdc cao c\u1ea5p, gi\u00fap gi\u1ea3m thi\u1ec3u t\u1ed5n hao \u00e1nh s\u00e1ng v\u00e0 ng\u0103n ch\u1eb7n s\u1ef1 \u1ea3nh h\u01b0\u1edfng t\u1eeb m\u00f4i tr\u01b0\u1eddng b\u00ean ngo\u00e0i.<\/span><\/p>\n

Th\u00eam v\u00e0o \u0111\u00f3, thi\u1ebft k\u1ebf \u0111\u1ea7u n\u1ed1i c\u0169ng l\u00e0 \u0111i\u1ec3m c\u1ea7n ch\u00fa \u00fd. \u0110\u1ea7u c\u1eafm l\u00e0m t\u1eeb h\u1ee3p kim k\u1ebdm ho\u1eb7c m\u1ea1 v\u00e0ng s\u1ebd t\u0103ng kh\u1ea3 n\u0103ng ch\u1ed1ng oxy h\u00f3a, gi\u00fap t\u0103ng \u0111\u1ed9 b\u1ec1n v\u00e0 \u1ed5n \u0111\u1ecbnh trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng l\u00e2u d\u00e0i. B\u00ean c\u1ea1nh \u0111\u00f3, l\u1edbp v\u1ecf b\u1ea3o v\u1ec7 b\u00ean ngo\u00e0i n\u00ean \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb v\u1eadt li\u1ec7u ch\u1eafc ch\u1eafn, c\u00f3 \u0111\u1ed9 \u0111\u00e0n h\u1ed3i t\u1ed1t \u0111\u1ec3 ch\u1ed1ng \u0111\u1ee9t g\u00e3y khi b\u1ecb u\u1ed1n cong ho\u1eb7c va \u0111\u1eadp m\u1ea1nh.<\/span><\/p>\n

\"optical-8\"<\/picture><\/p>\n

Chi\u1ec1u d\u00e0i d\u00e2y c\u00e1p c\u0169ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t truy\u1ec1n t\u00edn hi\u1ec7u. Ng\u01b0\u1eddi d\u00f9ng n\u00ean ch\u1ecdn lo\u1ea1i c\u00f3 \u0111\u1ed9 d\u00e0i ph\u00f9 h\u1ee3p v\u1edbi kho\u1ea3ng c\u00e1ch gi\u1eefa thi\u1ebft b\u1ecb \u0111\u1ec3 tr\u00e1nh hi\u1ec7n t\u01b0\u1ee3ng suy hao. Th\u00f4ng th\u01b0\u1eddng, d\u00e2y quang d\u00e0i tr\u00ean 10 m\u00e9t c\u00f3 th\u1ec3 l\u00e0m gi\u1ea3m ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf chuy\u00ean bi\u1ec7t.<\/span><\/p>\n

Ngo\u00e0i ra, th\u01b0\u01a1ng hi\u1ec7u s\u1ea3n xu\u1ea5t c\u0169ng g\u00f3p ph\u1ea7n \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 tin c\u1eady. C\u00e1c h\u00e3ng uy t\u00edn th\u01b0\u1eddng cung c\u1ea5p s\u1ea3n ph\u1ea9m v\u1edbi ti\u00eau chu\u1ea9n ki\u1ec3m \u0111\u1ecbnh nghi\u00eam ng\u1eb7t, \u0111i k\u00e8m ch\u1ebf \u0111\u1ed9 b\u1ea3o h\u00e0nh r\u00f5 r\u00e0ng. Khi mua c\u00e1p quang h\u1ecdc , b\u1ea1n n\u00ean \u01b0u ti\u00ean c\u00e1c s\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 cao t\u1eeb ng\u01b0\u1eddi d\u00f9ng v\u00e0 chuy\u00ean gia \u0111\u1ec3 tr\u00e1nh mua ph\u1ea3i h\u00e0ng k\u00e9m ch\u1ea5t l\u01b0\u1ee3ng.<\/span><\/p>\n

K\u1ebft lu\u1eadn<\/b><\/h2>\n

T\u1ed5ng k\u1ebft l\u1ea1i, k\u1ebft n\u1ed1i qua c\u1ed5ng <\/span>Optical <\/b>v\u1eabn l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn hi\u1ec7u qu\u1ea3 v\u00e0 ph\u1ed5 bi\u1ebfn trong vi\u1ec7c truy\u1ec1n t\u1ea3i \u00e2m thanh k\u1ef9 thu\u1eadt s\u1ed1 v\u1edbi ch\u1ea5t l\u01b0\u1ee3ng cao v\u00e0 \u1ed5n \u0111\u1ecbnh. M\u1eb7c d\u00f9 c\u00f3 m\u1ed9t s\u1ed1 h\u1ea1n ch\u1ebf v\u1ec1 kh\u1ea3 n\u0103ng h\u1ed7 tr\u1ee3 c\u00e1c \u0111\u1ecbnh d\u1ea1ng \u00e2m thanh ti\u00ean ti\u1ebfn ho\u1eb7c truy\u1ec1n t\u00edn hi\u1ec7u h\u00ecnh \u1ea3nh, c\u1ed5ng quang h\u1ecdc v\u1eabn gi\u1eef vai tr\u00f2 quan tr\u1ecdng trong nhi\u1ec1u h\u1ec7 th\u1ed1ng gi\u1ea3i tr\u00ed gia \u0111\u00ecnh.<\/span><\/p>\n

Xem th\u00eam:<\/b><\/p>\n