{"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":"hoi-nghi-truyen-hinh_howling_echo","status":"publish","type":"post","link":"https:\/\/chat-messenger.com\/vi\/blog\/videoconference_howling_echo","title":{"rendered":"Lo\u1ea1i b\u1ecf c\u0103ng th\u1eb3ng khi h\u1ed9i ngh\u1ecb tr\u1ef1c tuy\u1ebfn! Nguy\u00ean nh\u00e2n v\u00e0 gi\u1ea3i ph\u00e1p cho hi\u1ec7n t\u01b0\u1ee3ng nhi\u1ec5u \u00e2m v\u00e0 ti\u1ebfng v\u1ecdng."},"content":{"rendered":"

Ti\u1ebfng h\u00fa vang v\u1ecdng: Nguy\u00ean nh\u00e2n v\u00e0 gi\u1ea3i ph\u00e1p<\/h2>\n\n\n\n

H\u1ed9i ngh\u1ecb tr\u1ef1c tuy\u1ebfn v\u00e0 cu\u1ed9c g\u1ecdi video<\/strong><\/a> Khi c\u00f4ng ngh\u1ec7 tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn, hi\u1ec7n t\u01b0\u1ee3ng nhi\u1ec5u \u00e2m v\u00e0 ti\u1ebfng v\u1ecdng th\u01b0\u1eddng xuy\u00ean x\u1ea3y ra. \u0110\u1ec3 gi\u1ea3i quy\u1ebft nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y, tr\u01b0\u1edbc ti\u00ean c\u1ea7n ph\u1ea3i hi\u1ec3u r\u00f5 nguy\u00ean nh\u00e2n v\u00e0 sau \u0111\u00f3 \u00e1p d\u1ee5ng c\u00e1c bi\u1ec7n ph\u00e1p th\u00edch h\u1ee3p.<\/p>\n\n\n\n

B\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u1ea3i th\u00edch nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y, t\u1eeb hi\u1ec3u bi\u1ebft c\u01a1 b\u1ea3n \u0111\u1ebfn c\u00e1c gi\u1ea3i ph\u00e1p c\u1ee5 th\u1ec3, theo c\u00e1ch d\u1ec5 hi\u1ec3u cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u.<\/p>\n\n\n\n

Nguy\u00ean nh\u00e2n n\u00e0o g\u00e2y ra ti\u1ebfng h\u00fa?<\/h3>\n\n\n\n

Ch\u1eafc h\u1eb3n ai c\u0169ng t\u1eebng nghe th\u1ea5y ti\u1ebfng r\u00edt ch\u00f3i tai khi s\u1eed d\u1ee5ng c\u00e1c thi\u1ebft b\u1ecb nh\u01b0 micro ho\u1eb7c loa. \u00c2m thanh kh\u00f3 ch\u1ecbu n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 ph\u1ea3n h\u1ed3i \u00e2m thanh (feedback).<\/p>\n\n\n\n

Hi\u1ec7n t\u01b0\u1ee3ng h\u00fa r\u00edt x\u1ea3y ra khi micro thu \u00e2m thanh t\u1eeb loa, v\u00e0 \u00e2m thanh \u0111\u00f3 sau \u0111\u00f3 \u0111\u01b0\u1ee3c ph\u00e1t ra t\u1eeb loa v\u1edbi m\u1ed9t t\u1ea7n s\u1ed1 c\u1ee5 th\u1ec3. Micro c\u00e0ng \u1edf g\u1ea7n loa, ho\u1eb7c c\u00e0ng h\u01b0\u1edbng v\u1ec1 ph\u00eda loa, th\u00ec hi\u1ec7n t\u01b0\u1ee3ng h\u00fa r\u00edt c\u00e0ng d\u1ec5 x\u1ea3y ra.<\/p>\n\n\n\n

C\u00e1c ph\u00f2ng h\u1ed9i ngh\u1ecb, \u0111\u1eb7c bi\u1ec7t l\u00e0 nh\u1eefng ph\u00f2ng d\u00f9ng cho h\u1ed9i ngh\u1ecb truy\u1ec1n h\u00ecnh, th\u01b0\u1eddng \u0111\u01b0\u1ee3c bao quanh b\u1edfi tr\u1ea7n v\u00e0 t\u01b0\u1eddng, \u0111i\u1ec1u n\u00e0y khi\u1ebfn ch\u00fang d\u1ec5 b\u1ecb ph\u1ea3n x\u1ea1 v\u00e0 d\u1ed9i \u00e2m.<\/p>\n\n\n\n

M\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng ph\u1ed5 bi\u1ebfn \u0111\u00e1ng ng\u1ea1c nhi\u00ean kh\u00e1c l\u00e0,\u0110\u00f4i khi, khi th\u1eed nghi\u1ec7m h\u1ed9i ngh\u1ecb tr\u1ef1c tuy\u1ebfn tr\u01b0\u1edbc khi tri\u1ec3n khai ch\u00ednh th\u1ee9c, hai thi\u1ebft b\u1ecb (m\u00e1y t\u00ednh v\u00e0 \u0111i\u1ec7n tho\u1ea1i th\u00f4ng minh) \u0111\u01b0\u1ee3c \u0111\u1eb7t g\u1ea7n nhau. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, hi\u1ec7n t\u01b0\u1ee3ng nhi\u1ec5u \u00e2m (ti\u1ebfng h\u00fa) g\u1ea7n nh\u01b0 ch\u1eafc ch\u1eafn s\u1ebd x\u1ea3y ra.<\/mark>Khi ti\u1ebfn h\u00e0nh th\u1eed nghi\u1ec7m, vui l\u00f2ng \u0111\u1ea3m b\u1ea3o hai thi\u1ebft b\u1ecb c\u00e1ch nhau \u00edt nh\u1ea5t 5 m\u00e9t.<\/p>\n\n\n\n

Nguy\u00ean nh\u00e2n n\u00e0o g\u00e2y ra ti\u1ebfng v\u1ecdng?<\/h3>\n\n\n\n

Ti\u1ebfng v\u1ecdng l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng c\u00f9ng m\u1ed9t \u00e2m thanh \u0111\u01b0\u1ee3c ph\u1ea3n x\u1ea1 nhi\u1ec1u l\u1ea7n. M\u1ed9t v\u00ed d\u1ee5 \u0111i\u1ec3n h\u00ecnh v\u1ec1 ti\u1ebfng v\u1ecdng l\u00e0 ti\u1ebfng v\u1ecdng tr\u00ean n\u00fai. Khi l\u1eddi n\u00f3i \u0111\u01b0\u1ee3c ph\u1ea3n x\u1ea1 nhi\u1ec1u l\u1ea7n, vi\u1ec7c nghe s\u1ebd tr\u1edf n\u00ean r\u1ea5t kh\u00f3 kh\u0103n trong c\u00e1c cu\u1ed9c h\u1ecdp video v\u00e0 h\u1ed9i ngh\u1ecb tr\u1ef1c tuy\u1ebfn. Ti\u1ebfng v\u1ecdng x\u1ea3y ra khi micro thu \u00e2m thanh t\u1eeb ng\u01b0\u1eddi n\u00f3i.<\/p>\n\n\n\n

\n

Tr\u00f2 chuy\u1ec7n & Tin nh\u1eafn<\/a> \u0110\u00e2y l\u00e0 m\u1ed9t ph\u1ea7n m\u1ec1m c\u1ed9ng t\u00e1c t\u00edch h\u1ee3p, th\u00e2n thi\u1ec7n v\u1edbi ng\u01b0\u1eddi d\u00f9ng, k\u1ebft h\u1ee3p tr\u00f2 chuy\u1ec7n doanh nghi\u1ec7p, h\u1ed9i ngh\u1ecb tr\u1ef1c tuy\u1ebfn, 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\u1ecdp v\u00e0 qu\u1ea3n l\u00fd \u0111i\u1ec3m danh. N\u00f3 c\u0169ng cung c\u1ea5p b\u1ea3o m\u1eadt m\u1ea1nh m\u1ebd cho doanh nghi\u1ec7p.Ho\u00e0n to\u00e0n 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 v\u1ea5n \u0111\u1ec1 ph\u1ea3n h\u1ed3i v\u00e0 ti\u1ebfng v\u1ecdng<\/h2>\n\n\n\n

C\u00f3 nhi\u1ec1u c\u00e1ch \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 nhi\u1ec5u \u00e2m v\u00e0 ti\u1ebfng v\u1ecdng. N\u1ebfu b\u1ea1n \u0111ang g\u1eb7p kh\u00f3 kh\u0103n v\u1edbi nhi\u1ec5u \u00e2m ho\u1eb7c ti\u1ebfng v\u1ecdng, h\u00e3y th\u1eed c\u00e1c ph\u01b0\u01a1ng ph\u00e1p \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 \u1edf \u0111\u00e2y tr\u01b0\u1edbc.<\/p>\n\n\n\n

V\u1ecb tr\u00ed t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee7a micro v\u00e0 loa r\u1ea5t quan tr\u1ecdng.<\/h3>\n\n\n\n

V\u1ecb tr\u00ed t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee7a micro v\u00e0 loa c\u00f3 th\u1ec3 g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng h\u00fa v\u00e0 d\u1ed9i \u00e2m. Ch\u1ea5t li\u1ec7u c\u1ee7a t\u01b0\u1eddng v\u00e0 gi\u1ea5y d\u00e1n t\u01b0\u1eddng c\u0169ng c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u00e2m thanh, d\u1eabn \u0111\u1ebfn h\u00fa v\u00e0 d\u1ed9i \u00e2m. Do \u0111\u00f3, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i ch\u00fa \u00fd \u0111\u1ebfn v\u1ecb tr\u00ed t\u01b0\u01a1ng \u0111\u1ed1i c\u1ee7a micro v\u00e0 loa, c\u0169ng nh\u01b0 kho\u1ea3ng c\u00e1ch t\u1eeb t\u01b0\u1eddng. \u0110\u00f4i khi, ch\u1ec9 c\u1ea7n thay \u0111\u1ed5i v\u1ecb tr\u00ed t\u01b0\u01a1ng \u0111\u1ed1i c\u00f3 th\u1ec3 kh\u1eafc ph\u1ee5c \u0111\u01b0\u1ee3c hi\u1ec7n t\u01b0\u1ee3ng h\u00fa v\u00e0 d\u1ed9i \u00e2m, v\u00ec v\u1eady h\u00e3y th\u1eed di chuy\u1ec3n thi\u1ebft b\u1ecb xung quanh.<\/p>\n\n\n\n

H\u00e3y ch\u1ecdn micro c\u00f3 ch\u1ee9c n\u0103ng kh\u1eed ti\u1ebfng v\u1ecdng ho\u1eb7c kh\u1eed nhi\u1ec5u.<\/h3>\n\n\n\n

Khi ti\u1ebfn h\u00e0nh c\u00e1c cu\u1ed9c h\u1ecdp video ho\u1eb7c h\u1ed9i ngh\u1ecb tr\u1ef1c tuy\u1ebfn, b\u1ea1n s\u1ebd s\u1eed d\u1ee5ng micro v\u00e0 loa. V\u00ec micro t\u00edch h\u1ee3p trong m\u00e1y t\u00ednh d\u1ec5 b\u1ecb nhi\u1ec5u v\u00e0 ti\u1ebfng v\u1ecdng, t\u1ed1t nh\u1ea5t n\u00ean ch\u1ecdn micro c\u00f3 t\u00ednh n\u0103ng kh\u1eed ti\u1ebfng v\u1ecdng ho\u1eb7c kh\u1eed ti\u1ebfng \u1ed3n.<\/p>\n\n\n\n

Microphone c\u00f3 ch\u1ee9c n\u0103ng kh\u1eed ti\u1ebfng v\u1ecdng ho\u1eb7c kh\u1eed nhi\u1ec5u \u00edt b\u1ecb thu \u00e2m ti\u1ebfng \u1ed3n xung quanh h\u01a1n, gi\u1ea3m hi\u1ec7n t\u01b0\u1ee3ng h\u00fa v\u00e0 ti\u1ebfng v\u1ecdng, cho ph\u00e9p nghe ch\u00ednh x\u00e1c h\u01a1n trong c\u00e1c cu\u1ed9c h\u1ecdp. Vui l\u00f2ng tham kh\u1ea3o th\u00eam b\u00e0i vi\u1ebft sau.<\/p>\n\n\n

\t\t\t
\n\t\t\t\t
\n\t\t\t\t\tC\u0169ng \u0111\u00e1ng \u0111\u1ecdc.<\/span>\n\t\t\t\t\t
\"\"<\/figure><\/div>\t\t\t\t\t
\n\t\t\t\t\t\tC\u00e1ch ch\u1ecdn m\u00e1y \u1ea3nh v\u00e0 micro t\u1ed1t nh\u1ea5t cho h\u1ed9i ngh\u1ecb tr\u1ef1c tuy\u1ebfn v\u00e0 cu\u1ed9c g\u1ecdi video.<\/a>\n\t\t\t\t\t\t[C\u00e1ch ch\u1ecdn m\u00e1y \u1ea3nh v\u00e0 micro t\u1ed1t nh\u1ea5t] M\u00e1y \u1ea3nh v\u00e0 micro l\u00e0 thi\u1ebft y\u1ebfu \u0111\u1ec3 tham gia c\u00e1c cu\u1ed9c h\u1ecdp video, cu\u1ed9c g\u1ecdi video v\u00e0 h\u1ed9i ngh\u1ecb tr\u1ef1c tuy\u1ebfn. Ch\u00fang t\u00f4i \u0111\u1ec1 xu\u1ea5t m\u00e1y \u1ea3nh d\u1ef1a tr\u00ean s\u1ed1 l\u01b0\u1ee3ng ng\u01b0\u1eddi tham gia v\u00e0 m\u1ee5c \u0111\u00edch 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

Trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, b\u1ea1n c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh "Kh\u1eed ti\u1ebfng \u1ed3n" v\u00e0 "Lo\u1ea1i b\u1ecf gi\u1ecdng n\u00f3i" trong c\u00e0i \u0111\u1eb7t thi\u1ebft b\u1ecb c\u1ee7a m\u00ecnh.<\/h3>\n\n\n\n

T\u00f9y thu\u1ed9c v\u00e0o lo\u1ea1i micro, b\u1ea1n c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh "kh\u1eed nhi\u1ec5u" v\u00e0 "lo\u1ea1i b\u1ecf gi\u1ecdng n\u00f3i" trong c\u00e0i \u0111\u1eb7t thi\u1ebft b\u1ecb, v\u00ec v\u1eady h\u00e3y ki\u1ec3m tra v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c bi\u1ec7n ph\u00e1p sau.<\/p>\n\n\n\n

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

Gi\u1ea3m \u00e2m l\u01b0\u1ee3ng micro xu\u1ed1ng.<\/h3>\n\n\n\n

Vi\u1ec7c t\u0103ng \u00e2m l\u01b0\u1ee3ng micro l\u00ean m\u1ee9c t\u1ed1i \u0111a th\u01b0\u1eddng g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng h\u00fa r\u00edt, 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\u00e1c gi\u1ea3i ph\u00e1p tr\u00ean kh\u00f4ng gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c v\u1ea5n \u0111\u1ec1, vi\u1ec7c s\u1eed d\u1ee5ng tai nghe c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n hi\u1ec7n t\u01b0\u1ee3ng nhi\u1ec5u \u00e2m.<\/p>\n\n\n\n

B\u1ea1n c\u00f3 th\u1ec3 ng\u0103n ch\u1eb7n hi\u1ec7n t\u01b0\u1ee3ng ph\u1ea3n h\u1ed3i v\u00e0 ti\u1ebfng v\u1ecdng b\u1eb1ng c\u00e1ch chu\u1ea9n b\u1ecb v\u00e0 ki\u1ec3m tra tr\u01b0\u1edbc.<\/h2>\n\n\n\n

\u0110i\u1ec1u n\u00e0y c\u00f3 v\u1ebb c\u01a1 b\u1ea3n, nh\u01b0ng vi\u1ec7c s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb t\u01b0\u01a1ng th\u00edch v\u1edbi h\u1ed9i ngh\u1ecb truy\u1ec1n h\u00ecnh v\u00e0 h\u1ed9i ngh\u1ecb tr\u1ef1c tuy\u1ebfn s\u1ebd gi\u1ea3m \u0111\u00e1ng k\u1ec3 kh\u1ea3 n\u0103ng x\u1ea3y ra s\u1ef1 c\u1ed1. N\u1ebfu b\u1ea1n \u0111ang s\u1eed d\u1ee5ng micro ho\u1eb7c loa kh\u00f4ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho h\u1ed9i ngh\u1ecb, t\u1ed1t nh\u1ea5t l\u00e0 n\u00ean chuy\u1ec3n sang thi\u1ebft b\u1ecb kh\u00e1c.<\/p>\n\n\n\n

H\u01a1n n\u1eefa, ngay c\u1ea3 khi s\u1eed d\u1ee5ng c\u00e1c s\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho h\u1ed9i ngh\u1ecb, m\u1ed7i thi\u1ebft b\u1ecb \u0111\u1ec1u c\u00f3 s\u1ed1 l\u01b0\u1ee3ng ng\u01b0\u1eddi d\u00f9ng t\u1ed1i \u0111a \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh. N\u1ebfu s\u1ed1 l\u01b0\u1ee3ng ng\u01b0\u1eddi tham gia h\u1ed9i ngh\u1ecb v\u01b0\u1ee3t qu\u00e1 s\u1ed1 l\u01b0\u1ee3ng ng\u01b0\u1eddi d\u00f9ng t\u1ed1i \u0111a, c\u00e1c v\u1ea5n \u0111\u1ec1 nh\u01b0 nhi\u1ec5u \u00e2m v\u00e0 ti\u1ebfng v\u1ecdng s\u1ebd d\u1ec5 x\u1ea3y ra h\u01a1n.<\/p>\n\n\n\n

Quan tr\u1ecdng nh\u1ea5t, b\u1ea1n n\u00ean di\u1ec5n t\u1eadp tr\u01b0\u1edbc \u0111\u1ec3 ki\u1ec3m tra xem c\u00f3 v\u1ea5n \u0111\u1ec1 ti\u1ec1m \u1ea9n n\u00e0o kh\u00f4ng.<\/span><\/p>","protected":false},"excerpt":{"rendered":"

\u30cf\u30a6\u30ea\u30f3\u30b0\u30fb\u30a8\u30b3\u30fc\u306e\u539f\u56e0\u3068\u89e3\u6c7a\u7b56 Web\u4f1a\u8b70\u3084\u30d3\u30c7\u30aa\u901a\u8a71 \u304c\u65e5\u5e38\u5316\u3059\u308b\u4e2d\u3067\u3001\u30cf\u30a6\u30ea\u30f3\u30b0\u3084\u30a8\u30b3\u30fc\u306f\u3088\u304f\u3042\u308b\u554f\u984c\u3067 […]<\/p>\n","protected":false},"author":1,"featured_media":9130,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[25,9],"tags":[],"class_list":["post-2786","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-videoconference","category-blog"],"_links":{"self":[{"href":"https:\/\/chat-messenger.com\/vi\/wp-json\/wp\/v2\/posts\/2786","targetHints":{"allow":["GET"]}}],"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":"trang web","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}