{"id":2786,"date":"2023-11-14T22:32:00","date_gmt":"2023-11-14T13:32:00","guid":{"rendered":"https:\/\/chat-messenger.com\/?p=2786"},"modified":"2023-11-18T01:53:13","modified_gmt":"2023-11-17T16:53:13","slug":"videoconference_howling_echo","status":"publish","type":"post","link":"https:\/\/chat-messenger.com\/vi\/blog\/hoi-nghi-truyen-hinh_howling_echo","title":{"rendered":"Lo\u1ea1i b\u1ecf s\u1ef1 c\u0103ng th\u1eb3ng c\u1ee7a h\u1ed9i ngh\u1ecb web! Nguy\u00ean nh\u00e2n v\u00e0 gi\u1ea3i ph\u00e1p cho ti\u1ebfng h\u00fa"},"content":{"rendered":"

Nguy\u00ean nh\u00e2n v\u00e0 gi\u1ea3i ph\u00e1p cho ti\u1ebfng h\u00fa<\/h2>\n\n\n\n

H\u1ed9i th\u1ea3o tr\u00ean web v\u00e0 cu\u1ed9c g\u1ecdi video<\/strong><\/a> Ti\u1ebfng h\u00fa v\u00e0 ti\u1ebfng vang l\u00e0 nh\u1eefng v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn khi th\u1ebf gi\u1edbi ng\u00e0y c\u00e0ng tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn h\u01a1n. \u0110\u1ec3 gi\u1ea3i quy\u1ebft nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y, tr\u01b0\u1edbc ti\u00ean b\u1ea1n ph\u1ea3i hi\u1ec3u nguy\u00ean nh\u00e2n v\u00e0 c\u00f3 bi\u1ec7n ph\u00e1p th\u00edch h\u1ee3p.<\/p>\n\n\n\n

Trong b\u00e0i vi\u1ebft n\u00e0y, ch\u00fang t\u00f4i s\u1ebd gi\u1ea3i th\u00edch m\u1ecdi th\u1ee9 t\u1eeb c\u00e1ch hi\u1ec3u c\u01a1 b\u1ea3n v\u1ec1 nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y \u0111\u1ebfn c\u00e1c gi\u1ea3i ph\u00e1p c\u1ee5 th\u1ec3 m\u1ed9t c\u00e1ch d\u1ec5 hi\u1ec3u, ngay c\u1ea3 \u0111\u1ed1i v\u1edbi ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u.<\/p>\n\n\n\n

Nguy\u00ean nh\u00e2n g\u00e2y ra ti\u1ebfng h\u00fa l\u00e0 g\u00ec?<\/h3>\n\n\n\n

T\u1ea5t c\u1ea3 ch\u00fang ta \u0111\u1ec1u t\u1eebng nghe th\u1ea5y \u00e2m thanh \u201ct\u00edt\u201d khi s\u1eed d\u1ee5ng c\u00e1c thi\u1ebft b\u1ecb nh\u01b0 micr\u00f4 v\u00e0 loa. \u00c2m thanh kh\u00f3 ch\u1ecbu n\u00e0y tr\u1edf th\u00e0nh ti\u1ebfng h\u00fa.<\/p>\n\n\n\n

Ti\u1ebfng h\u00fa x\u1ea3y ra do micr\u00f4 thu \u00e2m thanh t\u1eeb loa v\u00e0 khi \u00e2m thanh \u0111\u00f3 ph\u00e1t ra t\u1eeb loa, m\u1ed9t t\u1ea7n s\u1ed1 c\u1ee5 th\u1ec3 s\u1ebd \u0111\u01b0\u1ee3c ph\u00e1t ra. Ti\u1ebfng h\u00fa c\u00f3 nhi\u1ec1u kh\u1ea3 n\u0103ng x\u1ea3y ra h\u01a1n khi micr\u00f4 \u1edf g\u1ea7n ho\u1eb7c \u0111\u1ed1i di\u1ec7n v\u1edbi ng\u01b0\u1eddi n\u00f3i.<\/p>\n\n\n\n

\u0110\u1eb7c bi\u1ec7t, c\u00e1c ph\u00f2ng h\u1ecdp d\u00e0nh cho h\u1ed9i ngh\u1ecb truy\u1ec1n h\u00ecnh th\u01b0\u1eddng c\u00f3 tr\u1ea7n v\u00e0 t\u01b0\u1eddng bao quanh, d\u1ec5 ph\u1ea3n x\u1ea1 \u00e2m thanh v\u00e0 g\u00e2y ra ti\u1ebfng h\u00fa.<\/p>\n\n\n\n

M\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng ph\u1ed5 bi\u1ebfn kh\u00e1c l\u00e0V\u1edbi m\u1ee5c \u0111\u00edch th\u1eed nghi\u1ec7m tr\u01b0\u1edbc khi tri\u1ec3n khai h\u1ed9i ngh\u1ecb tr\u00ean web, c\u00f3 tr\u01b0\u1eddng h\u1ee3p hai thi\u1ebft b\u1ecb (PC, \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh) \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m \u1edf kho\u1ea3ng c\u00e1ch g\u1ea7n. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, ti\u1ebfng h\u00fa ch\u1eafc ch\u1eafn s\u1ebd x\u1ea3y ra.<\/mark>Khi ki\u1ec3m tra, h\u00e3y c\u00e2n nh\u1eafc gi\u1eef hai thi\u1ebft b\u1ecb c\u00e1ch nhau \u00edt nh\u1ea5t 5 m\u00e9t.<\/p>\n\n\n\n

\u0110i\u1ec1u g\u00ec g\u00e2y ra ti\u1ebfng vang?<\/h3>\n\n\n\n

Ti\u1ebfng v\u1ecdng l\u00e0 khi c\u00f9ng m\u1ed9t \u00e2m thanh vang l\u1ea1i nhi\u1ec1u l\u1ea7n. C\u00f3 th\u1ec3 n\u00f3i Yamabiko l\u00e0 m\u1ed9t ti\u1ebfng vang \u0111i\u1ec3n h\u00ecnh. N\u1ebfu nh\u1eefng l\u1eddi b\u1ea1n n\u00f3i b\u1ecb l\u1eb7p l\u1ea1i nhi\u1ec1u l\u1ea7n, s\u1ebd r\u1ea5t kh\u00f3 nghe th\u1ea5y ch\u00fang trong cu\u1ed9c h\u1ecdp video ho\u1eb7c h\u1ed9i ngh\u1ecb tr\u00ean web. Ti\u1ebfng vang x\u1ea3y ra khi micr\u00f4 thu \u00e2m thanh t\u1eeb loa.<\/p>\n\n\n\n

\n

Tr\u00f2 chuy\u1ec7n & Nh\u1eafn tin<\/a> l\u00e0 ph\u1ea7n m\u1ec1m nh\u00f3m t\u00edch h\u1ee3p tr\u00f2 chuy\u1ec7n kinh doanh, h\u1ed9i th\u1ea3o tr\u00ean web, chia s\u1ebb t\u1ec7p, qu\u1ea3n l\u00fd l\u1ecbch tr\u00ecnh, qu\u1ea3n l\u00fd t\u00e0i li\u1ec7u, \u0111\u1eb7t ph\u00f2ng h\u1ed9i ngh\u1ecb v\u00e0 qu\u1ea3n l\u00fd \u0111i\u1ec3m danh theo c\u00e1ch d\u1ec5 s\u1eed d\u1ee5ng. B\u1ea3o m\u1eadt ho\u00e0n h\u1ea3o cho doanh nghi\u1ec7p,C\u00f3 s\u1eb5n mi\u1ec5n ph\u00ed!<\/mark><\/p>\n<\/a>\n<\/div>\n\n\n\n

Nh\u1eefng \u0111i\u1ec1u b\u1ea1n c\u1ea7n bi\u1ebft \u0111\u1ec3 gi\u1ea3i quy\u1ebft ti\u1ebfng h\u00fa v\u00e0 ti\u1ebfng vang<\/h2>\n\n\n\n

C\u00f3 m\u1ed9t s\u1ed1 c\u00e1ch \u0111\u1ec3 gi\u1ea3i quy\u1ebft ti\u1ebfng h\u00fa v\u00e0 ti\u1ebfng vang. N\u1ebfu b\u1ea1n g\u1eb7p kh\u00f3 kh\u0103n v\u1edbi ti\u1ebfng h\u00fa ho\u1eb7c ti\u1ebfng vang, tr\u01b0\u1edbc ti\u00ean h\u00e3y th\u1eed nh\u1eefng \u0111i\u1ec1u \u0111\u01b0\u1ee3c gi\u1edbi thi\u1ec7u \u1edf \u0111\u00e2y.<\/p>\n\n\n\n

M\u1ed1i quan h\u1ec7 v\u1ecb tr\u00ed gi\u1eefa micro v\u00e0 loa r\u1ea5t quan tr\u1ecdng.<\/h3>\n\n\n\n

Ti\u1ebfng h\u00fa ho\u1eb7c ti\u1ebfng vang c\u00f3 th\u1ec3 x\u1ea3y ra t\u00f9y thu\u1ed9c v\u00e0o m\u1ed1i quan h\u1ec7 v\u1ecb tr\u00ed gi\u1eefa micr\u00f4 v\u00e0 loa. Ti\u1ebfng h\u00fa v\u00e0 ti\u1ebfng vang x\u1ea3y ra do \u1ea3nh h\u01b0\u1edfng c\u1ee7a v\u1eadt li\u1ec7u l\u00e0m t\u01b0\u1eddng v\u00e0 gi\u1ea5y d\u00e1n t\u01b0\u1eddng. V\u00ec v\u1eady, b\u1ea1n c\u1ea7n c\u1ea9n th\u1eadn v\u1ec1 m\u1ed1i quan h\u1ec7 v\u1ecb tr\u00ed gi\u1eefa micro v\u00e0 loa c\u0169ng nh\u01b0 kho\u1ea3ng c\u00e1ch v\u1edbi t\u01b0\u1eddng. \u0110\u00f4i khi c\u00f3 th\u1ec3 d\u1eebng ti\u1ebfng h\u00fa v\u00e0 ti\u1ebfng vang ch\u1ec9 b\u1eb1ng c\u00e1ch thay \u0111\u1ed5i m\u1ed1i quan h\u1ec7 v\u1ecb tr\u00ed, v\u00ec v\u1eady h\u00e3y th\u1eed di chuy\u1ec3n thi\u1ebft b\u1ecb xung quanh.<\/p>\n\n\n\n

Ch\u1ecdn micro c\u00f3 ch\u1ee9c n\u0103ng kh\u1eed ti\u1ebfng vang ho\u1eb7c kh\u1eed ti\u1ebfng \u1ed3n<\/h3>\n\n\n\n

Khi t\u1ed5 ch\u1ee9c h\u1ed9i ngh\u1ecb video ho\u1eb7c h\u1ed9i th\u1ea3o tr\u00ean web, h\u00e3y s\u1eed d\u1ee5ng micr\u00f4 v\u00e0 loa. Micro \u0111i k\u00e8m v\u1edbi m\u00e1y t\u00ednh c\u1ee7a b\u1ea1n d\u1ec5 b\u1ecb ph\u1ea3n h\u1ed3i v\u00e0 v\u1ecdng \u00e2m n\u00ean t\u1ed1t nh\u1ea5t b\u1ea1n n\u00ean ch\u1ecdn lo\u1ea1i micro c\u00f3 ch\u1ee9c n\u0103ng kh\u1eed ti\u1ebfng vang ho\u1eb7c kh\u1eed ti\u1ebfng \u1ed3n.<\/p>\n\n\n\n

Micr\u00f4 kh\u1eed ti\u1ebfng v\u1ecdng ho\u1eb7c kh\u1eed ti\u1ebfng \u1ed3n \u00edt c\u00f3 kh\u1ea3 n\u0103ng thu ti\u1ebfng \u1ed3n h\u01a1n, do \u0111\u00f3, ph\u1ea3n h\u1ed3i v\u00e0 ti\u1ebfng vang \u00edt c\u00f3 kh\u1ea3 n\u0103ng x\u1ea3y ra h\u01a1n, gi\u00fap b\u1ea1n d\u1ec5 d\u00e0ng nghe ch\u00ednh x\u00e1c c\u00e1c cu\u1ed9c h\u1ed9i tho\u1ea1i trong cu\u1ed9c h\u1ecdp h\u01a1n. H\u00e3y c\u0169ng tham kh\u1ea3o nh\u1eefng b\u00e0i vi\u1ebft sau \u0111\u00e2y nh\u00e9.<\/p>\n\n\n

\t\t\t
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\n\t\t\t\t\tT\u00f4i c\u0169ng mu\u1ed1n \u0111\u1ecdc n\u00f3<\/span>\n\t\t\t\t\t
\"\"<\/figure><\/div>\t\t\t\t\t
\n\t\t\t\t\t\tC\u00e1ch ch\u1ecdn camera v\u00e0 micr\u00f4 \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t cho h\u1ed9i ngh\u1ecb tr\u00ean web v\u00e0 cu\u1ed9c g\u1ecdi \u0111i\u1ec7n video<\/a>\n\t\t\t\t\t\t[C\u00e1ch ch\u1ecdn m\u00e1y \u1ea3nh v\u00e0 micr\u00f4 \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t] M\u00e1y \u1ea3nh v\u00e0 micr\u00f4 r\u1ea5t c\u1ea7n thi\u1ebft \u0111\u1ec3 tham gia h\u1ed9i ngh\u1ecb video, cu\u1ed9c g\u1ecdi \u0111i\u1ec7n video v\u00e0 h\u1ed9i ngh\u1ecb tr\u00ean web. M\u00e1y \u1ea3nh \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t d\u1ef1a tr\u00ean s\u1ed1 l\u01b0\u1ee3ng ng\u01b0\u1eddi tham gia v\u00e0 lo\u1ea1i h\u00ecnh s\u1eed d\u1ee5ng...<\/span>\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\n\n

B\u1ea1n c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh "Kh\u1eed ti\u1ebfng \u1ed3n" v\u00e0 "H\u1ee7y gi\u1ecdng n\u00f3i" trong c\u00e0i \u0111\u1eb7t thi\u1ebft b\u1ecb.<\/h3>\n\n\n\n

T\u00f9y thu\u1ed9c v\u00e0o micr\u00f4, b\u1ea1n c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh "kh\u1eed ti\u1ebfng \u1ed3n" v\u00e0 "h\u1ee7y gi\u1ecdng n\u00f3i" trong c\u00e0i \u0111\u1eb7t thi\u1ebft b\u1ecb, v\u00ec v\u1eady vui l\u00f2ng ki\u1ec3m tra c\u00e1c m\u1ee5c sau v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c bi\u1ec7n ph\u00e1p \u0111\u1ed1i ph\u00f3.<\/p>\n\n\n\n

\"Kh\u1eed<\/figure>\n\n\n\n

gi\u1ea3m \u00e2m l\u01b0\u1ee3ng micr\u00f4<\/h3>\n\n\n\n

N\u1ebfu b\u1ea1n t\u0103ng \u00e2m l\u01b0\u1ee3ng micr\u00f4 l\u00ean m\u1ee9c t\u1ed1i \u0111a, ti\u1ebfng h\u00fa th\u01b0\u1eddng x\u1ea3y ra, v\u00ec v\u1eady h\u00e3y th\u1eed gi\u1ea3m \u00e2m l\u01b0\u1ee3ng xu\u1ed1ng m\u1ed9t ch\u00fat.<\/p>\n\n\n\n

S\u1eed d\u1ee5ng tai nghe<\/h3>\n\n\n\n

N\u1ebfu c\u00e1ch tr\u00ean kh\u00f4ng gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c v\u1ea5n \u0111\u1ec1, v\u1ec1 c\u01a1 b\u1ea3n, ti\u1ebfng h\u00fa c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c gi\u1ea3i quy\u1ebft b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng tai nghe.<\/p>\n\n\n\n

Ti\u1ebfng h\u00fa v\u00e0 ti\u1ebfng vang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ng\u0103n ch\u1eb7n b\u1eb1ng c\u00e1ch chu\u1ea9n b\u1ecb v\u00e0 ki\u1ec3m tra tr\u01b0\u1edbc.<\/h2>\n\n\n\n

V\u1ec1 c\u01a1 b\u1ea3n, n\u1ebfu b\u1ea1n s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb h\u1ed7 tr\u1ee3 h\u1ed9i ngh\u1ecb truy\u1ec1n h\u00ecnh v\u00e0 h\u1ed9i th\u1ea3o tr\u00ean web th\u00ec c\u00e1c s\u1ef1 c\u1ed1 s\u1ebd \u00edt x\u1ea3y ra h\u01a1n. N\u1ebfu b\u1ea1n \u0111ang s\u1eed d\u1ee5ng micr\u00f4 v\u00e0 loa kh\u00f4ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho h\u1ed9i ngh\u1ecb, b\u1ea1n c\u00f3 th\u1ec3 c\u00e2n nh\u1eafc s\u1eed d\u1ee5ng m\u1ed9t thi\u1ebft b\u1ecb kh\u00e1c.<\/p>\n\n\n\n

Ngo\u00e0i ra, ngay c\u1ea3 khi b\u1ea1n \u0111ang s\u1eed d\u1ee5ng c\u00e1c s\u1ea3n ph\u1ea9m h\u1ed9i ngh\u1ecb, s\u1ed1 l\u01b0\u1ee3ng ng\u01b0\u1eddi d\u00f9ng th\u00edch h\u1ee3p v\u1eabn \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh cho t\u1eebng thi\u1ebft b\u1ecb. N\u1ebfu s\u1ed1 l\u01b0\u1ee3ng ng\u01b0\u1eddi tham gia cu\u1ed9c h\u1ecdp v\u01b0\u1ee3t qu\u00e1 s\u1ed1 l\u01b0\u1ee3ng ng\u01b0\u1eddi d\u00f9ng th\u00ec c\u00f3 th\u1ec3 x\u1ea3y ra c\u00e1c v\u1ea5n \u0111\u1ec1 nh\u01b0 ph\u1ea3n h\u1ed3i v\u00e0 ti\u1ebfng vang.<\/p>\n\n\n\n

\u0110i\u1ec1u quan tr\u1ecdng nh\u1ea5t l\u00e0 ph\u1ea3i di\u1ec5n t\u1eadp tr\u01b0\u1edbc khi h\u1ecdp \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u00f4ng c\u00f3 b\u1ea5t ti\u1ec7n n\u00e0o x\u1ea3y ra.<\/span><\/p>","protected":false},"excerpt":{"rendered":"

Nguy\u00ean nh\u00e2n v\u00e0 gi\u1ea3i ph\u00e1p cho ti\u1ebfng h\u00fa v\u00e0 ti\u1ebfng vang Khi h\u1ed9i ngh\u1ecb tr\u00ean web v\u00e0 cu\u1ed9c g\u1ecdi video tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn, ti\u1ebfng h\u00fa v\u00e0 ti\u1ebfng vang l\u00e0 nh\u1eefng v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p [\u2026]<\/p>","protected":false},"author":1,"featured_media":9130,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":""},"categories":[25,9],"tags":[],"_links":{"self":[{"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/posts\/2786"}],"collection":[{"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/comments?post=2786"}],"version-history":[{"count":7,"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/posts\/2786\/revisions"}],"predecessor-version":[{"id":9137,"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/posts\/2786\/revisions\/9137"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/media\/9130"}],"wp:attachment":[{"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/media?parent=2786"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/categories?post=2786"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/tags?post=2786"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}