{"id":563,"date":"2023-03-04T07:46:49","date_gmt":"2023-03-04T07:46:49","guid":{"rendered":"https:\/\/vtechsolutions.vn\/blog\/?p=563"},"modified":"2023-04-13T18:07:31","modified_gmt":"2023-04-13T18:07:31","slug":"so-sanh-he-thong-am-thanh-analog-digital-va-ip","status":"publish","type":"post","link":"https:\/\/vtechsolutions.vn\/blog\/so-sanh-he-thong-am-thanh-analog-digital-va-ip\/","title":{"rendered":"So s\u00e1nh h\u1ec7 th\u1ed1ng \u00e2m thanh Analog, Digital v\u00e0 IP"},"content":{"rendered":"<p>T\u00edn hi\u1ec7u \u00e2m thanh t\u1ed3n t\u1ea1i \u1edf nhi\u1ec1u d\u1ea1ng kh\u00e1c nhau nh\u01b0 d\u1ea1ng s\u00f3ng \u00e2m, s\u00f3ng v\u00f4 tuy\u1ebfn, t\u00edn hi\u1ec7u s\u1ed1,&#8230; H\u1ec7 th\u1ed1ng \u00e2m thanh g\u1ed3m nhi\u1ec1u thi\u1ebft b\u1ecb thu, ph\u00e1t v\u00e0 x\u1eed l\u00fd t\u00edn hi\u1ec7u \u00e2m thanh. Trong \u0111\u00f3, <a href=\"https:\/\/vtechsolutions.vn\/blog\/so-sanh-he-thong-am-thanh-analog-digital-va-ip\">h\u1ec7 th\u1ed1ng \u00e2m thanh Analog, Digital v\u00e0 IP<\/a> l\u00e0 ba lo\u1ea1i ph\u1ed5 bi\u1ebfn nh\u1ea5t hi\u1ec7n nay. Trong b\u00e0i vi\u1ebft n\u00e0y h\u00e3y c\u00f9ng VTech t\u00ecm hi\u1ec3u chi ti\u1ebft \u0111\u1eb7c \u0111i\u1ec3m t\u1eebng h\u1ec7 th\u1ed1ng tr\u00ean nh\u00e9.<\/p>\n<div id=\"toc_container\" class=\"toc_light_blue no_bullets\"><p class=\"toc_title\">T&oacute;m t\u1eaft n\u1ed9i dung<\/p><ul class=\"toc_list\"><li><a href=\"#1_He_thong_am_thanh_Analog_la_gi\">1\/ H\u1ec7 th\u1ed1ng \u00e2m thanh Analog l\u00e0 g\u00ec?<\/a><\/li><li><a href=\"#2_Uu_va_nhuoc_diem_cua_he_thong_am_thanh_Analog\">2\/ \u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a h\u1ec7 th\u1ed1ng \u00e2m thanh Analog<\/a><ul><li><a href=\"#21_Uu_diem_he_thong_am_thanh_Analog\">2.1\/ \u01afu \u0111i\u1ec3m h\u1ec7 th\u1ed1ng \u00e2m thanh Analog<\/a><\/li><li><a href=\"#22_Nhuoc_diem_he_thong_am_thanh_Analog\">2.2\/ Nh\u01b0\u1ee3c \u0111i\u1ec3m h\u1ec7 th\u1ed1ng \u00e2m thanh Analog<\/a><\/li><\/ul><\/li><li><a href=\"#3_He_thong_am_thanh_Digital_la_gi\">3\/ H\u1ec7 th\u1ed1ng \u00e2m thanh Digital l\u00e0 g\u00ec?<\/a><\/li><li><a href=\"#4_Uu_va_nhuoc_diem_cua_he_thong_am_thanh_Digital\">4\/ \u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a h\u1ec7 th\u1ed1ng \u00e2m thanh Digital<\/a><ul><li><a href=\"#41_Uu_diem_he_thong_am_thanh_Digital\">4.1\/ \u01afu \u0111i\u1ec3m h\u1ec7 th\u1ed1ng \u00e2m thanh Digital<\/a><\/li><li><a href=\"#42_Nhuoc_diem_he_thong_am_thanh_Digital\">4.2\/ Nh\u01b0\u1ee3c \u0111i\u1ec3m h\u1ec7 th\u1ed1ng \u00e2m thanh Digital<\/a><\/li><\/ul><\/li><li><a href=\"#5_He_thong_am_thanh_IP_la_gi\">5\/ H\u1ec7 th\u1ed1ng \u00e2m thanh IP l\u00e0 g\u00ec?<\/a><\/li><li><a href=\"#6_Uu_va_nhuoc_diem_cua_he_thong_am_thanh_IP\">6\/ \u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a h\u1ec7 th\u1ed1ng \u00e2m thanh IP<\/a><ul><li><a href=\"#61_Uu_diem_he_thong_am_thanh_IP\">6.1\/ \u01afu \u0111i\u1ec3m h\u1ec7 th\u1ed1ng \u00e2m thanh IP<\/a><\/li><li><a href=\"#62_Nhuoc_diem_he_thong_am_thanh_IP\">6.2\/ Nh\u01b0\u1ee3c \u0111i\u1ec3m h\u1ec7 th\u1ed1ng \u00e2m thanh IP<\/a><\/li><\/ul><\/li><li><a href=\"#7_So_sanh_he_thong_am_thanh_Analog_Digital_va_IP\">7\/ So s\u00e1nh h\u1ec7 th\u1ed1ng \u00e2m thanh Analog, Digital v\u00e0 IP<\/a><ul><li><a href=\"#71_Ve_ung_dung\">7.1\/ V\u1ec1 \u1ee9ng d\u1ee5ng<\/a><\/li><li><a href=\"#72_Ve_chat_luong_am_thanh\">7.2\/ V\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh<\/a><\/li><\/ul><\/li><\/ul><\/div>\n<h2><span id=\"1_He_thong_am_thanh_Analog_la_gi\">1\/ H\u1ec7 th\u1ed1ng \u00e2m thanh Analog l\u00e0 g\u00ec?<\/span><\/h2>\n<p>H\u1ec7 th\u1ed1ng \u00e2m thanh Analog g\u1ed3m c\u00e1c thi\u1ebft b\u1ecb c\u00f3 kh\u1ea3 n\u0103ng thu ph\u00e1t v\u00e0 x\u1eed l\u00fd t\u00edn hi\u1ec7u \u00e2m thanh Analog. \u0110\u00e2y l\u00e0 lo\u1ea1i t\u00edn hi\u1ec7u \u00e2m thanh h\u00ecnh th\u00e0nh \u0111\u1ea7u ti\u00ean t\u1eeb n\u0103m 1796, \u0111\u01b0\u1ee3c m\u00f4 ph\u1ecfng theo \u00e2m thanh trong t\u1ef1 nhi\u00ean. Sau \u0111\u00f3 n\u0103m 1877 chi\u1ebfc m\u00e1y ghi \u00e2m \u0111\u1ea7u ti\u00ean ra \u0111\u1eddi gi\u00fap l\u01b0u ph\u00e1t \u00e2m thanh m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c. T\u1eeb \u0111\u00f3 c\u00f4ng ngh\u1ec7 x\u1eed l\u00fd \u00e2m thanh kh\u00f4ng ng\u1eebng ph\u00e1t tri\u1ec3n, \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn trong cu\u1ed9c s\u1ed1ng v\u00e0 nhi\u1ec1u l\u0129nh v\u1ef1c.<\/p>\n<p>\u00c2m thanh Analog l\u00e0 chu\u1ed7i \u00e2m thanh li\u00ean t\u1ee5c, \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 d\u1ea1ng s\u00f3ng h\u00ecnh Sin trong bi\u1ec3u \u0111\u1ed3 Oxy. D\u1ea1ng t\u00edn hi\u1ec7u n\u00e0y t\u01b0\u01a1ng t\u1ef1 nh\u01b0 d\u00f2ng \u0111i\u1ec7n truy\u1ec1n trong \u0111\u01b0\u1eddng d\u00e2y hay nhi\u1ec1u lo\u1ea1i s\u00f3ng v\u00f4 tuy\u1ebfn, s\u00f3ng \u0111i\u1ec7n t\u1eeb kh\u00e1c. \u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a lo\u1ea1i \u00e2m thanh n\u00e0y l\u00e0 \u0111\u1ed9 ch\u00e2n th\u1ef1c cao, c\u00f3 t\u00ednh li\u00ean t\u1ee5c v\u00e0 t\u01b0\u01a1ng t\u1ef1 nh\u01b0ng ch\u1ecbu \u1ea3nh h\u01b0\u1edfng nhi\u1ec1u t\u1eeb kho\u1ea3ng c\u00e1ch v\u00e0 m\u00f4i tr\u01b0\u1eddng.<\/p>\n<figure id=\"attachment_655\" aria-describedby=\"caption-attachment-655\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-655\" src=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/nguyen-ly-cua-am-thanh-analog-1024x485.jpg\" alt=\"nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a \u00e2m thanh analog\" width=\"800\" height=\"379\" srcset=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/nguyen-ly-cua-am-thanh-analog-1024x485.jpg 1024w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/nguyen-ly-cua-am-thanh-analog-300x142.jpg 300w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/nguyen-ly-cua-am-thanh-analog-768x364.jpg 768w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/nguyen-ly-cua-am-thanh-analog.jpg 1035w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-655\" class=\"wp-caption-text\">\u00c2m thanh Analog l\u00e0 t\u00edn hi\u1ec7u h\u00ecnh sin li\u00ean t\u1ee5c<\/figcaption><\/figure>\n<p>D\u1ef1a theo \u0111\u1eb7c \u0111i\u1ec3m n\u00e0y, h\u1ec7 th\u1ed1ng \u00e2m thanh Analog c\u1ea7n c\u00f3 thi\u1ebft b\u1ecb chuy\u1ec3n \u0111\u1ed5i d\u1ea1ng s\u00f3ng v\u1eadt l\u00fd c\u1ee7a \u00e2m thanh th\u1ef1c t\u1ebf sang d\u1ea1ng s\u00f3ng t\u00edn hi\u1ec7u. Sau \u0111\u00f3 \u00e2m thanh s\u1ebd \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef ho\u1eb7c truy\u1ec1n \u0111i. Qu\u00e1 tr\u00ecnh ph\u00e1t \u00e2m thanh s\u1ebd ng\u01b0\u1ee3c l\u1ea1i, c\u1ea7n thi\u1ebft b\u1ecb chuy\u1ec3n \u0111\u1ed5i s\u00f3ng t\u00edn hi\u1ec7u sang s\u00f3ng v\u1eadt l\u00fd v\u00e0 khu\u1ebfch \u0111\u1ea1i. Trong qu\u00e1 tr\u00ecnh n\u00e0y t\u00edn hi\u1ec7u Analog gi\u1eef nguy\u00ean \u0111\u1eb7c \u0111i\u1ec3m s\u00f3ng c\u01a1 b\u1ea3n gi\u00fap \u00e2m thanh ch\u00e2n th\u1ef1c kh\u00f4ng b\u1ecb bi\u1ebfn \u0111\u1ed5i.<\/p>\n<h2><span id=\"2_Uu_va_nhuoc_diem_cua_he_thong_am_thanh_Analog\">2\/ \u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a h\u1ec7 th\u1ed1ng \u00e2m thanh Analog<\/span><\/h2>\n<p>H\u1ec7 th\u1ed1ng \u00e2m thanh Analog hi\u1ec7n \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn trong cu\u1ed9c s\u1ed1ng v\u00e0 nhi\u1ec1u l\u0129nh v\u1ef1c. D\u00f9 c\u00f3 nhi\u1ec1u h\u1ec7 th\u1ed1ng m\u1edbi nh\u01b0 Digital hay IP ra \u0111\u1eddi th\u00ec h\u1ec7 th\u1ed1ng \u00e2m thanh truy\u1ec1n th\u1ed1ng n\u00e0y v\u1eabn \u0111\u01b0\u1ee3c nhi\u1ec1u ng\u01b0\u1eddi \u01b0a chu\u1ed9ng s\u1eed d\u1ee5ng.<\/p>\n<h3><span id=\"21_Uu_diem_he_thong_am_thanh_Analog\"><strong>2.1\/ \u01afu \u0111i\u1ec3m h\u1ec7 th\u1ed1ng \u00e2m thanh Analog<\/strong><\/span><\/h3>\n<ul>\n<li>T\u00edn hi\u1ec7u l\u01b0u tr\u1eef \u1edf d\u1ea1ng s\u00f3ng h\u00ecnh sin ch\u00ednh x\u00e1c cho ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh chu\u1ea9n, ch\u00e2n th\u1ef1c.<\/li>\n<li>Cho ph\u00e9p c\u1eaft n\u1ed1i d\u1ec5 d\u00e0ng nhi\u1ec1u t\u00edn hi\u1ec7u \u00e2m thanh Analog kh\u00e1c nhau.<\/li>\n<li>Ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh t\u1ed1t, s\u1ed1ng \u0111\u1ed9ng gi\u1ed1ng nh\u01b0 \u0111ang nghe tr\u1ef1c ti\u1ebfp.<\/li>\n<li>H\u1ec7 th\u1ed1ng g\u1ed3m nhi\u1ec1u m\u00e1y m\u00f3c nh\u01b0ng kh\u00e1 \u0111\u01a1n gi\u1ea3n, d\u1ec5 l\u1eafp \u0111\u1eb7t v\u00e0 s\u1eed d\u1ee5ng.<\/li>\n<li>Th\u1ecb tr\u01b0\u1eddng nhi\u1ec1u lo\u1ea1i thi\u1ebft b\u1ecb \u00e2m thanh Analog gi\u00fap ng\u01b0\u1eddi d\u00f9ng c\u00f3 nhi\u1ec1u l\u1ef1a ch\u1ecdn.<\/li>\n<li>H\u1ec7 th\u1ed1ng \u00e2m thanh Analog c\u00f3 gi\u00e1 th\u00e0nh kh\u00e1 r\u1ebb, nh\u1ea5t l\u00e0 khi c\u00e1c h\u1ec7 th\u1ed1ng hi\u1ec7n \u0111\u1ea1i kh\u00e1c \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng.<\/li>\n<li>Ph\u00f9 h\u1ee3p \u0111\u1ec3 truy\u1ec1n t\u00edn hi\u1ec7u \u00e2m thanh \u0111i xa m\u00e0 v\u1eabn gi\u1eef nguy\u00ean \u0111\u01b0\u1ee3c ch\u1ea5t l\u01b0\u1ee3ng.<\/li>\n<\/ul>\n<h3><span id=\"22_Nhuoc_diem_he_thong_am_thanh_Analog\">2.2\/ Nh\u01b0\u1ee3c \u0111i\u1ec3m h\u1ec7 th\u1ed1ng \u00e2m thanh Analog<\/span><\/h3>\n<ul>\n<li>H\u1ec7 th\u1ed1ng c\u1ea7n s\u1eed d\u1ee5ng \u00e2m thanh Analog nguy\u00ean b\u1ea3n, sao ch\u00e9p c\u00e0ng nhi\u1ec1u l\u1ea7n th\u00ec ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh c\u00e0ng gi\u1ea3m.<\/li>\n<li>Ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh b\u1ecb \u1ea3nh h\u01b0\u1edfng nhi\u1ec1u b\u1edfi \u0111i\u1ec7n \u00e1p v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng.<\/li>\n<li>m thanh Analog ph\u00e1t ra c\u00f3 th\u1ec3 l\u1eabn nhi\u1ec1u t\u1ea1p \u00e2m g\u00e2y kh\u00f3 ch\u1ecbu cho ng\u01b0\u1eddi nghe.<\/li>\n<li>Ph\u1ea3i c\u00f3 thi\u1ebft b\u1ecb x\u1eed l\u00fd nhi\u1ec5u \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ph\u00e1t \u00e2m thanh ch\u1ea5t l\u01b0\u1ee3ng.<\/li>\n<li>Ghi v\u00e0 l\u01b0u tr\u1eef \u00e2m thanh Analog ph\u1ee9c t\u1ea1p, s\u1eed d\u1ee5ng c\u00e1c thi\u1ebft b\u1ecb c\u1ed3ng k\u1ec1nh.<\/li>\n<\/ul>\n<h2><span id=\"3_He_thong_am_thanh_Digital_la_gi\">3\/ H\u1ec7 th\u1ed1ng \u00e2m thanh Digital l\u00e0 g\u00ec?<\/span><\/h2>\n<p>H\u1ec7 th\u1ed1ng \u00e2m thanh Digital hay c\u00f2n g\u1ecdi l\u00e0 \u00e2m thanh k\u1ef9 thu\u1eadt s\u1ed1 ph\u00e1t tri\u1ec3n t\u1eeb nh\u1eefng n\u0103m 1970. Tuy nhi\u00ean ph\u1ea3i \u0111\u1ebfn n\u0103m 2010 tr\u1edf \u0111i th\u00ec c\u00f4ng ngh\u1ec7 ph\u00e1t \u00e2m thanh Digital m\u1edbi th\u1ef1c s\u1ef1 ph\u00e1t tri\u1ec3n, \u0111\u01b0\u1ee3c nhi\u1ec1u ng\u01b0\u1eddi bi\u1ebft \u0111\u1ebfn v\u00e0 s\u1eed d\u1ee5ng.<\/p>\n<p>H\u1ec7 th\u1ed1ng n\u00e0y thu ph\u00e1t, l\u01b0u tr\u1eef \u00e2m thanh d\u01b0\u1edbi d\u1ea1ng t\u00edn hi\u1ec7u k\u1ef9 thu\u1eadt s\u1ed1, \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a th\u00e0nh c\u00e1c d\u00e3y s\u1ed1 g\u1ed3m hai s\u1ed1 0 v\u00e0 1. V\u00ed d\u1ee5 m\u1ed9t micro thu \u00e2m thanh s\u1ebd chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u \u00e2m thanh v\u1eadt l\u00fd sang t\u00edn hi\u1ec7u s\u1ed1 \u0111\u1ec3 l\u01b0u tr\u1eef. Khi mu\u1ed1n nghe l\u1ea1i \u00e2m thanh n\u00e0y th\u00ec t\u00edn hi\u1ec7u s\u1ed1 th\u00f4ng qua thi\u1ebft b\u1ecb chuy\u00ean d\u1ee5ng chuy\u1ec3n ng\u01b0\u1ee3c l\u1ea1i t\u00edn hi\u1ec7u v\u1eadt l\u00fd m\u00e0 con ng\u01b0\u1eddi c\u00f3 th\u1ec3 nghe \u0111\u01b0\u1ee3c.<\/p>\n<figure id=\"attachment_654\" aria-describedby=\"caption-attachment-654\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-654\" src=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/nguyen-ly-cua-am-thanh-digital-1024x558.jpg\" alt=\"nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a \u00e2m thanh digital\" width=\"800\" height=\"436\" srcset=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/nguyen-ly-cua-am-thanh-digital-1024x558.jpg 1024w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/nguyen-ly-cua-am-thanh-digital-300x163.jpg 300w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/nguyen-ly-cua-am-thanh-digital-768x418.jpg 768w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/nguyen-ly-cua-am-thanh-digital.jpg 1050w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-654\" class=\"wp-caption-text\">H\u1ec7 th\u1ed1ng \u00e2m thanh Digital c\u00f3 nhi\u1ec1u \u01b0u \u0111i\u1ec3m<\/figcaption><\/figure>\n<h2><span id=\"4_Uu_va_nhuoc_diem_cua_he_thong_am_thanh_Digital\">4\/ \u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a h\u1ec7 th\u1ed1ng \u00e2m thanh Digital<\/span><\/h2>\n<p>H\u1ec7 th\u1ed1ng \u00e2m thanh Digital ra \u0111\u1eddi mu\u1ed9n h\u01a1n nh\u01b0ng nhanh ch\u00f3ng \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng do kh\u1eafc ph\u1ee5c \u0111\u01b0\u1ee3c nhi\u1ec1u nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a h\u1ec7 th\u1ed1ng Analog c\u0169. C\u1ee5 th\u1ec3 nh\u01b0 sau:<\/p>\n<h3><span id=\"41_Uu_diem_he_thong_am_thanh_Digital\">4.1\/ \u01afu \u0111i\u1ec3m h\u1ec7 th\u1ed1ng \u00e2m thanh Digital<\/span><\/h3>\n<ul>\n<li>L\u01b0u tr\u1eef t\u00edn hi\u1ec7u \u00e2m thanh d\u1ec5 d\u00e0ng, thu\u1eadn ti\u1ec7n b\u1eb1ng thi\u1ebft b\u1ecb v\u1eadt l\u00fd nh\u01b0 \u0111\u0129a CD, USB, th\u1ebb nh\u1edb,&#8230; ho\u1eb7c tr\u00ean Internet.<\/li>\n<li>D\u1ec5 d\u00e0ng can thi\u1ec7p x\u1eed l\u00fd t\u00edn hi\u1ec7u \u00e2m thanh nh\u01b0 l\u1ecdc nhi\u1ec5u, lo\u1ea1i b\u1ecf t\u1ea1p \u00e2m, \u0111i\u1ec1u ch\u1ec9nh \u00e2m \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi ng\u01b0\u1eddi nghe h\u01a1n.<\/li>\n<li>D\u1ec5 d\u00e0ng truy\u1ec1n t\u1ea3i t\u00edn hi\u1ec7u \u0111i xa ho\u1eb7c sao ch\u00e9p nhi\u1ec1u l\u1ea7n m\u00e0 kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh.<\/li>\n<li>Kh\u00f4ng b\u1ecb bi\u1ebfn d\u1ea1ng ho\u1eb7c b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 \u0111i\u1ec7n \u00e1p, m\u00f4i tr\u01b0\u1eddng, \u0111\u01b0\u1eddng truy\u1ec1n,&#8230;<\/li>\n<li>D\u1ec5 d\u00e0ng n\u00e9n t\u00edn hi\u1ec7u \u00e2m thanh, ph\u00e2n ph\u1ed1i \u0111\u1ebfn ng\u01b0\u1eddi nghe b\u1eb1ng nhi\u1ec1u c\u00e1ch nh\u01b0: in sao b\u0103ng \u0111\u0129a, chuy\u1ec3n d\u1ea1ng t\u1eadp tin qua Internet, nghe xem tr\u1ef1c ti\u1ebfp tr\u00ean thi\u1ebft b\u1ecb di \u0111\u1ed9ng, m\u00e1y t\u00ednh,&#8230;<\/li>\n<\/ul>\n<h3><span id=\"42_Nhuoc_diem_he_thong_am_thanh_Digital\">4.2\/ Nh\u01b0\u1ee3c \u0111i\u1ec3m h\u1ec7 th\u1ed1ng \u00e2m thanh Digital<\/span><\/h3>\n<ul>\n<li>H\u1ec7 th\u1ed1ng t\u01b0\u01a1ng \u0111\u1ed1i ph\u1ee9c t\u1ea1p v\u00e0 hi\u1ec7n \u0111\u1ea1i, chi ph\u00ed \u0111\u1ea7u t\u01b0 ban \u0111\u1ea7u l\u1edbn.<\/li>\n<li>T\u00edn hi\u1ec7u \u00e2m thanh d\u1ec5 b\u1ecb t\u1ed5n th\u1ea5t trong qu\u00e1 tr\u00ecnh l\u01b0u tr\u1eef ho\u1eb7c truy\u1ec1n t\u1ea3i.<\/li>\n<li>Y\u00eau c\u1ea7u v\u1eadn h\u00e0nh ph\u1ee9c t\u1ea1p h\u01a1n, chi ph\u00ed s\u1eeda ch\u1eefa khi h\u1ecfng h\u00f3c l\u1edbn.<\/li>\n<li>Nhi\u1ec1u ng\u01b0\u1eddi cho r\u1eb1ng h\u1ec7 th\u1ed1ng \u00e2m thanh Digital cho ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh t\u1ed1t, sinh \u0111\u1ed9ng, ch\u1ea5t l\u01b0\u1ee3ng cao nh\u01b0ng k\u00e9m ch\u00e2n th\u1ef1c h\u01a1n so v\u1edbi h\u1ec7 th\u1ed1ng Analog.<\/li>\n<\/ul>\n<h2><span id=\"5_He_thong_am_thanh_IP_la_gi\">5\/ H\u1ec7 th\u1ed1ng \u00e2m thanh IP l\u00e0 g\u00ec?<\/span><\/h2>\n<p>H\u1ec7 th\u1ed1ng \u00e2m thanh IP l\u00e0 h\u1ec7 th\u1ed1ng hi\u1ec7n \u0111\u1ea1i, truy\u1ec1n nh\u1eadn t\u00edn hi\u1ec7u \u00e2m thanh qua Internet thay v\u00ec qua d\u00e2y d\u1eabn ho\u1eb7c c\u00e1c thi\u1ebft b\u1ecb v\u1eadt l\u00fd nh\u01b0 b\u00ecnh th\u01b0\u1eddng. C\u00e1c thi\u1ebft b\u1ecb \u00e2m thanh trong h\u1ec7 th\u1ed1ng k\u1ebft n\u1ed1i v\u1edbi nhau v\u00e0 k\u1ebft n\u1ed1i tr\u1ef1c ti\u1ebfp v\u1edbi h\u1ec7 th\u1ed1ng m\u1ea1ng, c\u00f3 th\u1ec3 l\u00e0 d\u00e2y c\u00e1p ho\u1eb7c m\u1ea1ng kh\u00f4ng d\u00e2y.<\/p>\n<figure id=\"attachment_656\" aria-describedby=\"caption-attachment-656\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-656\" src=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/he-thong-am-thanh-ip-1024x808.jpg\" alt=\"h\u1ec7 th\u1ed1ng \u00e2m thanh ip\" width=\"800\" height=\"632\" srcset=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/he-thong-am-thanh-ip-1024x808.jpg 1024w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/he-thong-am-thanh-ip-300x237.jpg 300w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/he-thong-am-thanh-ip-768x606.jpg 768w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/he-thong-am-thanh-ip.jpg 1520w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-656\" class=\"wp-caption-text\">H\u1ec7 th\u1ed1ng \u00e2m thanh IP th\u01b0\u1eddng d\u00f9ng l\u00e0m \u00e2m thanh th\u00f4ng b\u00e1o<\/figcaption><\/figure>\n<p>H\u1ec7 th\u1ed1ng \u00e2m thanh IP \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd v\u00e0 \u0111i\u1ec1u khi\u1ec3n b\u1eb1ng ph\u1ea7n m\u1ec1m tr\u00ean \u0111i\u1ec7n tho\u1ea1i ho\u1eb7c m\u00e1y t\u00ednh. V\u00ec v\u1eady h\u1ec7 th\u1ed1ng \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng ng\u00e0y c\u00e0ng nhi\u1ec1u trong th\u1ef1c t\u1ebf, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c c\u00f4ng tr\u00ecnh, d\u1ef1 \u00e1n hi\u1ec7n \u0111\u1ea1i. \u1ee8ng d\u1ee5ng th\u01b0\u1eddng g\u1eb7p nh\u1ea5t l\u00e0 h\u1ec7 th\u1ed1ng \u00e2m thanh th\u00f4ng b\u00e1o l\u1eafp \u0111\u1eb7t \u1edf c\u00e1c nh\u00e0 x\u01b0\u1edfng, t\u00f2a nh\u00e0, v\u0103n ph\u00f2ng, khu th\u01b0\u01a1ng m\u1ea1i, s\u00e2n bay,&#8230;<\/p>\n<h2><span id=\"6_Uu_va_nhuoc_diem_cua_he_thong_am_thanh_IP\">6\/ \u01afu v\u00e0 nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a h\u1ec7 th\u1ed1ng \u00e2m thanh IP<\/span><\/h2>\n<p>H\u1ec7 th\u1ed1ng \u00e2m thanh IP c\u00f3 th\u1ec3 g\u1ed3m nhi\u1ec1u thi\u1ebft b\u1ecb thu, ph\u00e1t, x\u1eed l\u00fd t\u00edn hi\u1ec7u \u00e2m thanh kh\u00e1c nhau t\u00f9y theo quy m\u00f4 c\u1ee7a h\u1ec7 th\u1ed1ng c\u0169ng nh\u01b0 \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a c\u00f4ng tr\u00ecnh s\u1eed d\u1ee5ng. \u0110\u1eb7c \u0111i\u1ec3m chung l\u00e0 c\u00e1c thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi nhau v\u00e0 k\u1ebft n\u1ed1i qua Internet gi\u00fap vi\u1ec7c truy\u1ec1n nh\u1eadn t\u00edn hi\u1ec7u \u00e2m thanh nhanh ch\u00f3ng, d\u1ec5 d\u00e0ng. Chi ti\u1ebft \u01b0u nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a h\u1ec7 th\u1ed1ng IP nh\u01b0 sau:<\/p>\n<h3><span id=\"61_Uu_diem_he_thong_am_thanh_IP\">6.1\/ \u01afu \u0111i\u1ec3m h\u1ec7 th\u1ed1ng \u00e2m thanh IP<\/span><\/h3>\n<ul>\n<li>C\u00f3 th\u1ec3 truy\u1ec1n \u00e2m thanh d\u1ec5 d\u00e0ng kh\u00f4ng gi\u1edbi h\u1ea1n kho\u1ea3ng c\u00e1ch, kh\u00f4ng c\u1ea7n d\u00e2y n\u1ed1i.<\/li>\n<li>T\u00edn hi\u1ec7u \u00e2m thanh \u0111\u01b0\u1ee3c chuy\u1ec3n th\u00e0nh t\u00edn hi\u1ec7u s\u1ed1 gi\u1ed1ng nh\u01b0 h\u1ec7 th\u1ed1ng \u00e2m thanh Digital n\u00ean ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh kh\u00f4ng b\u1ecb thay \u0111\u1ed5i d\u00f9 truy\u1ec1n t\u1ea3i xa ho\u1eb7c sao ch\u00e9p nhi\u1ec1u l\u1ea7n.<\/li>\n<li>L\u1eafp \u0111\u1eb7t tr\u00ean n\u1ec1n t\u1ea3ng m\u1ea1ng c\u00f3 s\u1eb5n n\u00ean ti\u1ebft ki\u1ec7m chi ph\u00ed d\u00e2y n\u1ed1i, \u0111\u01b0\u1eddng truy\u1ec1n.<\/li>\n<li>D\u1ec5 d\u00e0ng qu\u1ea3n l\u00fd c\u00e1c thi\u1ebft b\u1ecb trong h\u1ec7 th\u1ed1ng th\u00f4ng qua ph\u1ea7n m\u1ec1m tr\u00ean \u0111i\u1ec7n tho\u1ea1i ho\u1eb7c m\u00e1y t\u00ednh.<\/li>\n<li>Truy c\u1eadp s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng \u00e2m thanh IP \u1edf b\u1ea5t c\u1ee9 \u0111\u00e2u ch\u1ec9 c\u1ea7n c\u00f3 Internet.<\/li>\n<\/ul>\n<h3><span id=\"62_Nhuoc_diem_he_thong_am_thanh_IP\">6.2\/ Nh\u01b0\u1ee3c \u0111i\u1ec3m h\u1ec7 th\u1ed1ng \u00e2m thanh IP<\/span><\/h3>\n<ul>\n<li>L\u00e0 h\u1ec7 th\u1ed1ng \u00e2m thanh m\u1edbi, hi\u1ec7n \u0111\u1ea1i n\u00ean ch\u01b0a c\u00f3 nhi\u1ec1u \u0111\u01a1n v\u1ecb cung c\u1ea5p v\u00e0 l\u1eafp \u0111\u1eb7t.<\/li>\n<li>Ho\u1ea1t \u0111\u1ed9ng c\u1ea7n k\u1ebft n\u1ed1i Internet, ti\u00eau t\u1ed1n dung l\u01b0\u1ee3ng m\u1ea1ng.<\/li>\n<li>C\u00f3 r\u1ee7i ro b\u1ea3o m\u1eadt khi hacker x\u00e2m nh\u1eadp v\u00e0o ph\u1ea7n m\u1ec1m qu\u1ea3n l\u00fd.<\/li>\n<\/ul>\n<h2><span id=\"7_So_sanh_he_thong_am_thanh_Analog_Digital_va_IP\">7\/ So s\u00e1nh h\u1ec7 th\u1ed1ng \u00e2m thanh Analog, Digital v\u00e0 IP<\/span><\/h2>\n<p>H\u1ec7 th\u1ed1ng Analog, Digital hay IP \u0111\u1ec1u c\u00f3 \u01b0u nh\u01b0\u1ee3c \u0111i\u1ec3m, ph\u00f9 h\u1ee3p v\u1edbi t\u1eebng m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng ri\u00eang. So s\u00e1nh gi\u1eefa ba h\u1ec7 th\u1ed1ng \u00e2m thanh n\u00e0y h\u00e3y xem x\u00e9t c\u00e1c y\u1ebfu t\u1ed1 sau:<\/p>\n<h3><span id=\"71_Ve_ung_dung\">7.1\/ V\u1ec1 \u1ee9ng d\u1ee5ng<\/span><\/h3>\n<p>H\u1ec7 th\u1ed1ng \u00e2m thanh Analog v\u00e0 Digital \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i h\u01a1n trong \u0111\u1eddi s\u1ed1ng \u0111\u00e1p \u1ee9ng nhu c\u1ea7u \u00e2m thanh \u0111a d\u1ea1ng c\u1ee7a ng\u01b0\u1eddi d\u00f9ng. Nhi\u1ec1u ng\u01b0\u1eddi cho r\u1eb1ng \u00e2m thanh k\u1ef9 thu\u1eadt s\u1ed1 Digital ra \u0111\u1eddi s\u1ebd d\u1ea7n thay th\u1ebf \u00e2m thanh Analog truy\u1ec1n th\u1ed1ng. Tuy nhi\u00ean kh\u00f4ng h\u1ec7 th\u1ed1ng n\u00e0o c\u00f3 th\u1ec3 t\u1ed3n t\u1ea1i \u0111\u1ed9c l\u1eadp v\u00e0 th\u1ecfa m\u00e3n nhu c\u1ea7u c\u1ee7a t\u1ea5t c\u1ea3 ng\u01b0\u1eddi d\u00f9ng.<\/p>\n<figure id=\"attachment_653\" aria-describedby=\"caption-attachment-653\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-653\" src=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/uu-diem-cua-he-thong-am-thanh-analog-1024x525.jpg\" alt=\"\u01b0u \u0111i\u1ec3m c\u1ee7a h\u1ec7 th\u1ed1ng \u00e2m thanh analog\" width=\"800\" height=\"410\" srcset=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/uu-diem-cua-he-thong-am-thanh-analog-1024x525.jpg 1024w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/uu-diem-cua-he-thong-am-thanh-analog-300x154.jpg 300w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/uu-diem-cua-he-thong-am-thanh-analog-768x394.jpg 768w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/uu-diem-cua-he-thong-am-thanh-analog.jpg 1048w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-653\" class=\"wp-caption-text\">H\u1ec7 th\u1ed1ng \u00e2m thanh Analog v\u1eabn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn h\u01a1n c\u1ea3<\/figcaption><\/figure>\n<p>Th\u1ef1c t\u1ebf h\u1ec7 th\u1ed1ng \u00e2m thanh th\u00f4ng b\u00e1o Analog hi\u1ec7n nay v\u1eabn ph\u1ed5 bi\u1ebfn nh\u1ea5t v\u00ec l\u1ecbch s\u1eed ph\u00e1t tri\u1ec3n l\u00e2u \u0111\u1eddi, \u0111a d\u1ea1ng thi\u1ebft b\u1ecb, th\u00e2n thi\u1ec7n d\u1ec5 s\u1eed d\u1ee5ng. Ngo\u00e0i ra h\u1ec7 th\u1ed1ng n\u00e0y g\u1ed3m nhi\u1ec1u thi\u1ebft b\u1ecb thu ph\u00e1t, x\u1eed l\u00fd t\u00edn hi\u1ec7u ph\u1ee9c t\u1ea1p nh\u01b0ng gi\u00e1 th\u00e0nh r\u1ebb, ph\u00f9 h\u1ee3p v\u1edbi nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng. Ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh t\u1ed1t, ch\u00e2n th\u1ef1c s\u1ed1ng \u0111\u1ed9ng \u0111em \u0111\u1ebfn tr\u1ea3i nghi\u1ec7m tr\u1ecdn v\u1eb9n cho ng\u01b0\u1eddi nghe c\u0169ng l\u00e0 \u01b0u \u0111i\u1ec3m c\u1ee7a h\u1ec7 th\u1ed1ng Analog m\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng hi\u1ec7n \u0111\u1ea1i kh\u00f4ng c\u00f3 \u0111\u01b0\u1ee3c.<\/p>\n<p>V\u1edbi y\u00eau c\u1ea7u x\u1eed l\u00fd \u00e2m thanh t\u1ea1i ch\u1ed7 th\u00ec h\u1ec7 th\u1ed1ng \u00e2m hanh Analog v\u1eabn \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng h\u01a1n c\u1ea3. C\u00f2n v\u1edbi nhu c\u1ea7u l\u01b0u tr\u1eef v\u00e0 truy\u1ec1n t\u00edn hi\u1ec7u \u00e2m thanh \u0111i xa th\u00ec th\u01b0\u1eddng s\u1ebd k\u1ebft h\u1ee3p v\u1edbi h\u1ec7 th\u1ed1ng \u00e2m thanh Digital.<\/p>\n<p>V\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n v\u00e0 ph\u1ed5 bi\u1ebfn c\u1ee7a Internet hi\u1ec7n nay th\u00ec h\u1ec7 th\u1ed1ng IP ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng. \u0110\u1eb7c bi\u1ec7t l\u00e0 s\u1eed d\u1ee5ng \u1edf nh\u1eefng c\u00f4ng tr\u00ecnh l\u1edbn, t\u00f2a nh\u00e0 nhi\u1ec1u t\u1ea7ng ph\u1ee9c t\u1ea1p, kh\u00f3 \u0111i d\u00e2y n\u1ebfu d\u00f9ng h\u1ec7 th\u1ed1ng \u00e2m thanh truy\u1ec1n th\u1ed1ng.<\/p>\n<h3><span id=\"72_Ve_chat_luong_am_thanh\">7.2\/ V\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh<\/span><\/h3>\n<p>H\u1ec7 th\u1ed1ng \u00e2m thanh Analog x\u1eed l\u00fd t\u1ea1i ch\u1ed7 cho ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh t\u1ed1t nh\u1ea5t, ch\u00e2n th\u1ef1c, s\u1ed1ng \u0111\u1ed9ng v\u00e0 gi\u00fap ng\u01b0\u1eddi nghe c\u00f3 tr\u1ea3i nghi\u1ec7m tr\u1ecdn v\u1eb9n. Tuy nhi\u00ean n\u1ebfu l\u01b0u tr\u1eef v\u00e0 truy\u1ec1n t\u1ea3i xa th\u00ec \u00e2m thanh Analog kh\u00f4ng gi\u1eef \u0111\u01b0\u1ee3c ch\u1ea5t l\u01b0\u1ee3ng t\u1ed1t.<\/p>\n<figure id=\"attachment_652\" aria-describedby=\"caption-attachment-652\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-652\" src=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/uu-diem-cua-he-thong-am-thanh-digital-1024x585.jpg\" alt=\"\u01b0u \u0111i\u1ec3m c\u1ee7a h\u1ec7 th\u1ed1ng \u00e2m thanh d\u00ecgital\" width=\"800\" height=\"457\" srcset=\"https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/uu-diem-cua-he-thong-am-thanh-digital-1024x585.jpg 1024w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/uu-diem-cua-he-thong-am-thanh-digital-300x171.jpg 300w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/uu-diem-cua-he-thong-am-thanh-digital-768x439.jpg 768w, https:\/\/vtechsolutions.vn\/blog\/wp-content\/uploads\/2023\/03\/uu-diem-cua-he-thong-am-thanh-digital.jpg 1049w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-652\" class=\"wp-caption-text\">H\u1ec7 th\u1ed1ng \u00e2m thanh Digital ph\u00f9 h\u1ee3p \u0111\u1ec3 l\u01b0u tr\u1eef ho\u1eb7c truy\u1ec1n t\u1ea3i xa<\/figcaption><\/figure>\n<p>\u00c2m thanh Digital c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng cao, kh\u1ea3 n\u0103ng l\u1ecdc b\u1ecf t\u1ea1p \u00e2m v\u00e0 t\u00edn hi\u1ec7u nhi\u1ec5u t\u1ed1t. m thanh s\u1ed1ng \u0111\u1ed9ng nh\u01b0ng k\u00e9m ch\u00e2n th\u1ef1c, do v\u1eady ch\u1ec9 ph\u00f9 h\u1ee3p v\u1edbi th\u1ecb hi\u1ebfu c\u1ee7a m\u1ed9t nh\u00f3m ng\u01b0\u1eddi nghe. H\u1ec7 th\u1ed1ng \u00e2m thanh Digital c\u00f3 kh\u1ea3 n\u0103ng l\u01b0u tr\u1eef, truy\u1ec1n t\u1ea3i \u00e2m thanh ch\u1ea5t l\u01b0\u1ee3ng, kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi c\u00e1c y\u1ebfu t\u1ed1.<\/p>\n<p>Ch\u1ea5t l\u01b0\u1ee3ng \u00e2m thanh c\u1ee7a h\u1ec7 th\u1ed1ng \u00e2m thanh IP \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 cao do n\u00e9n truy\u1ec1n \u00e2m thanh d\u1ea1ng t\u00edn hi\u1ec7u s\u1ed1. \u0110\u01b0\u1eddng truy\u1ec1n Internet gi\u00fap t\u00edn hi\u1ec7u truy\u1ec1n \u0111i nhanh, d\u1ec5 d\u00e0ng kh\u00f4ng c\u1ea7n k\u1ebft n\u1ed1i d\u00e2y ph\u1ee9c t\u1ea1p.<\/p>\n<p>Tr\u00ean \u0111\u00e2y VTech \u0111\u00e3 c\u00f9ng b\u1ea1n \u0111\u1ecdc t\u00ecm hi\u1ec3u chi ti\u1ebft \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a ba h\u1ec7 th\u1ed1ng Analog, Digital v\u00e0 IP ph\u1ed5 bi\u1ebfn nh\u1ea5t hi\u1ec7n nay. Vi\u1ec7c l\u1ef1a ch\u1ecdn h\u1ec7 th\u1ed1ng \u00e2m thanh n\u00e0o c\u00f2n ph\u1ee5 thu\u1ed9c v\u00e0o nhu c\u1ea7u, m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng v\u00e0 nhi\u1ec1u y\u1ebfu t\u1ed1 kh\u00e1c. N\u1ebfu c\u1ea7n t\u01b0 v\u1ea5n gi\u1ea3i ph\u00e1p \u00e2m thanh v\u00e0 l\u1eafp \u0111\u1eb7t, h\u00e3y li\u00ean h\u1ec7 v\u1edbi VTech nh\u00e9.<\/p>\n<p><strong>Tham kh\u1ea3o th\u00eam:<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/vtechsolutions.vn\/blog\/he-thong-am-thanh-thong-bao-pa-la-gi\/\">H\u1ec7 th\u1ed1ng \u00e2m thanh th\u00f4ng b\u00e1o l\u00e0 g\u00ec? C\u1ea5u t\u1ea1o v\u00e0 vai tr\u00f2 c\u1ee7a h\u1ec7 th\u1ed1ng \u00e2m thanh th\u00f4ng b\u00e1o<\/a><\/li>\n<li><a href=\"https:\/\/vtechsolutions.vn\/blog\/quy-trinh-lap-dat-va-bao-tri-he-thong-loa-am-thanh-thong-bao\/\">Quy tr\u00ecnh l\u1eafp \u0111\u1eb7t v\u00e0 b\u1ea3o tr\u00ec h\u1ec7 th\u1ed1ng \u00e2m thanh th\u00f4ng b\u00e1o<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>T\u00edn hi\u1ec7u \u00e2m thanh t\u1ed3n t\u1ea1i \u1edf nhi\u1ec1u d\u1ea1ng kh\u00e1c nhau nh\u01b0 d\u1ea1ng s\u00f3ng \u00e2m, s\u00f3ng v\u00f4 tuy\u1ebfn, t\u00edn hi\u1ec7u s\u1ed1,&#8230; H\u1ec7 th\u1ed1ng \u00e2m thanh g\u1ed3m nhi\u1ec1u thi\u1ebft b\u1ecb thu,<\/p>\n","protected":false},"author":1,"featured_media":654,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[180,5],"tags":[],"class_list":["post-563","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-he-thong-am-thanh-thong-bao","category-tin-tuc"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>So s\u00e1nh h\u1ec7 th\u1ed1ng \u00e2m thanh Analog, Digital v\u00e0 IP<\/title>\n<meta name=\"description\" content=\"\u0110\u1eb7c \u0111i\u1ec3m, \u1ee9ng d\u1ee5ng, \u01b0u nh\u01b0\u1ee3c \u0111i\u1ec3m v\u00e0 so s\u00e1nh c\u00e1c h\u1ec7 th\u1ed1ng \u00e2m thanh Analog, Digital v\u00e0 IP, h\u00e3y t\u00ecm hi\u1ec3u trong b\u00e0i vi\u1ebft n\u00e0y nh\u00e9.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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