{"id":90,"date":"2015-09-03T15:22:00","date_gmt":"2015-09-03T15:22:00","guid":{"rendered":"http:\/\/machineryequipmentonline.com\/video-equipment\/uncategorized\/magnetic-tape-recordingaudio-signal-processing\/"},"modified":"2015-09-03T15:22:00","modified_gmt":"2015-09-03T15:22:00","slug":"magnetic-tape-recordingaudio-signal-processing","status":"publish","type":"post","link":"http:\/\/machineryequipmentonline.com\/video-equipment\/magnetic-tape-recordingaudio-signal-processing\/","title":{"rendered":"Magnetic tape recording:Audio signal processing"},"content":{"rendered":"<div class=\"ufbtp6a0dbd7e73548\" ><script type=\"text\/javascript\">\n\tatOptions = {\n\t\t'key' : '61e5902552e2353963d8d2f1bd1f4a8f',\n\t\t'format' : 'iframe',\n\t\t'height' : 250,\n\t\t'width' : 300,\n\t\t'params' : {}\n\t};\n<\/script>\n<script type=\"text\/javascript\" src=\"\/\/www.highperformanceformat.com\/61e5902552e2353963d8d2f1bd1f4a8f\/invoke.js\"><\/script><\/div><style type=\"text\/css\">\r\n@media screen and (min-width: 1201px) {\r\n.ufbtp6a0dbd7e73548 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 993px) and (max-width: 1200px) {\r\n.ufbtp6a0dbd7e73548 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 769px) and (max-width: 992px) {\r\n.ufbtp6a0dbd7e73548 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 768px) and (max-width: 768px) {\r\n.ufbtp6a0dbd7e73548 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (max-width: 767px) {\r\n.ufbtp6a0dbd7e73548 {\r\ndisplay: block;\r\n}\r\n}\r\n<\/style>\r\n<h3 align=\"justify\">Audio signal processing<\/h3>\n<p align=\"justify\">As we saw earlier in this chapter, the ingredients for success in recording TV pictures on tape are high writing speed and FM modulation. Within the immovable constraints of existing formats, it was obvious that for better sound performance these virtues must also be applied to the audio  <\/p>\n<p align=\"justify\"><a href=\"http:\/\/lh3.googleusercontent.com\/-VJUiRqylh2g\/VehlSyKhnyI\/AAAAAAAB7PM\/cwVl_Tt0tGY\/s1600-h\/Television-and-Video-Technology-0168.jpg\"><img decoding=\"async\" loading=\"lazy\" style=\"background-image: none; border-right-width: 0px; margin: 0px auto; padding-left: 0px; padding-right: 0px; display: block; float: none; border-top-width: 0px; border-bottom-width: 0px; border-left-width: 0px; padding-top: 0px\" title=\"Television and Video Technology-0168\" border=\"0\" alt=\"Television and Video Technology-0168\" src=\"http:\/\/lh3.googleusercontent.com\/-Anwb71iI1LY\/VehlXN3s6AI\/AAAAAAAB7Pw\/Y1qkhprUId8\/Television-and-Video-Technology-0168%25255B1%25255D.jpg?imgmax=800\" width=\"339\" height=\"423\" \/><\/a>  <\/p>\n<p align=\"justify\">signal. The obvious solution was to record an FM-modulated sound car- rier in or around the helical video tape tracks; but with the vision heads and tracks already chock-full of information, the problem was where to squeeze in the audio recording with regard to frequency-spectrum space and the \u2018magnetic\u2019 capacity of the tape track. Some form of multiplex system is required. Two alternative systems emerged for home VCR formats\u2014<i>dept<\/i><i>h multiplex<\/i>, used in VHS models; and <i>f<\/i><i>r<\/i><i>equenc<\/i><i>y multiplex <\/i>in Video-8 format. The former is the most common, and will be covered first.  <\/p><div class=\"viccu6a0dbd7e73706\" ><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-0778475562755157\"\n     crossorigin=\"anonymous\"><\/script>\n<!-- 300x600 television-and-video -->\n<ins class=\"adsbygoogle\"\n     style=\"display:inline-block;width:300px;height:600px\"\n     data-ad-client=\"ca-pub-0778475562755157\"\n     data-ad-slot=\"6549443290\"><\/ins>\n<script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script><\/div><style type=\"text\/css\">\r\n@media screen and (min-width: 1201px) {\r\n.viccu6a0dbd7e73706 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 993px) and (max-width: 1200px) {\r\n.viccu6a0dbd7e73706 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 769px) and (max-width: 992px) {\r\n.viccu6a0dbd7e73706 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 768px) and (max-width: 768px) {\r\n.viccu6a0dbd7e73706 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (max-width: 767px) {\r\n.viccu6a0dbd7e73706 {\r\ndisplay: block;\r\n}\r\n}\r\n<\/style>\r\n<div class=\"zjbdp6a0dbd7e73636\" ><script type=\"text\/javascript\">\n\tatOptions = {\n\t\t'key' : '0c1eb4c533eaedb7b996f49a5a4983a9',\n\t\t'format' : 'iframe',\n\t\t'height' : 300,\n\t\t'width' : 160,\n\t\t'params' : {}\n\t};\n<\/script>\n<script type=\"text\/javascript\" src=\"\/\/www.highperformanceformat.com\/0c1eb4c533eaedb7b996f49a5a4983a9\/invoke.js\"><\/script><\/div><style type=\"text\/css\">\r\n@media screen and (min-width: 1201px) {\r\n.zjbdp6a0dbd7e73636 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 993px) and (max-width: 1200px) {\r\n.zjbdp6a0dbd7e73636 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 769px) and (max-width: 992px) {\r\n.zjbdp6a0dbd7e73636 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (min-width: 768px) and (max-width: 768px) {\r\n.zjbdp6a0dbd7e73636 {\r\ndisplay: block;\r\n}\r\n}\r\n@media screen and (max-width: 767px) {\r\n.zjbdp6a0dbd7e73636 {\r\ndisplay: block;\r\n}\r\n}\r\n<\/style>\r\n\n<p align=\"justify\"><a href=\"http:\/\/lh3.googleusercontent.com\/-YuWPjE8YK-g\/VehlbNMeXLI\/AAAAAAAB7QA\/vaIWfEjRDpc\/s1600-h\/Television-and-Video-Technology-0169%25255B1%25255D.jpg\"><img decoding=\"async\" loading=\"lazy\" style=\"background-image: none; border-right-width: 0px; margin: 0px auto; padding-left: 0px; padding-right: 0px; display: block; float: none; border-top-width: 0px; border-bottom-width: 0px; border-left-width: 0px; padding-top: 0px\" title=\"Television and Video Technology-0169\" border=\"0\" alt=\"Television and Video Technology-0169\" src=\"http:\/\/lh3.googleusercontent.com\/-fvzUR6VKJTU\/VehlnGfVFQI\/AAAAAAAB7Q0\/I3M83i8Y4mU\/Television-and-Video-Technology-0169.jpg?imgmax=800\" width=\"366\" height=\"396\" \/><\/a>  <\/p>\n<p align=\"justify\">\n<p align=\"justify\">\n<p align=\"justify\">\n","protected":false},"excerpt":{"rendered":"<p>Audio signal processing As we saw earlier in this chapter, the ingredients for success in recording TV pictures on tape are high writing speed and FM modulation. Within the immovable constraints of existing formats, it was obvious that for better sound performance these virtues must also be applied to the audio signal. The obvious solution [&hellip;]<br \/><a href=\"http:\/\/machineryequipmentonline.com\/video-equipment\/magnetic-tape-recordingaudio-signal-processing\/\" class=\"more-link\" >Continue reading&#8230;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"aioseo_notices":[],"views":827,"_links":{"self":[{"href":"http:\/\/machineryequipmentonline.com\/video-equipment\/wp-json\/wp\/v2\/posts\/90"}],"collection":[{"href":"http:\/\/machineryequipmentonline.com\/video-equipment\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/machineryequipmentonline.com\/video-equipment\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/machineryequipmentonline.com\/video-equipment\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/machineryequipmentonline.com\/video-equipment\/wp-json\/wp\/v2\/comments?post=90"}],"version-history":[{"count":0,"href":"http:\/\/machineryequipmentonline.com\/video-equipment\/wp-json\/wp\/v2\/posts\/90\/revisions"}],"wp:attachment":[{"href":"http:\/\/machineryequipmentonline.com\/video-equipment\/wp-json\/wp\/v2\/media?parent=90"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/machineryequipmentonline.com\/video-equipment\/wp-json\/wp\/v2\/categories?post=90"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/machineryequipmentonline.com\/video-equipment\/wp-json\/wp\/v2\/tags?post=90"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}