{"id":405,"date":"2007-03-20T21:09:29","date_gmt":"2007-03-21T04:09:29","guid":{"rendered":"http:\/\/multimedia.cx\/eggs\/covox-adpcm\/"},"modified":"2007-03-21T23:59:33","modified_gmt":"2007-03-22T06:59:33","slug":"covox-adpcm","status":"publish","type":"post","link":"https:\/\/multimedia.cx\/eggs\/covox-adpcm\/","title":{"rendered":"Covox ADPCM"},"content":{"rendered":"<p><a href=\"http:\/\/www.oldskool.org\/\">Trixter<\/a>, who&#8217;s interested in even older multimedia formats than I am, has unearthed utilities to compress special ADPCM variants used by the Covox Sound Master. The formats include 2-, 3- and 4-bit ADPCM formats. For anyone interested in trying to reverse engineer the details of these obscure formats (and I know you&#8217;re out there), <a href=\"http:\/\/samples.mplayerhq.hu\/A-codecs\/CovoxFormats\/\">check out this directory<\/a> at the samples site. It has PCM samples compressed in the various formats along with the DOS-based compression utility used. Also, there is a programming library that has C code to interface to a binary library module that handles the meat of the codec operations.<\/p>\n<p>Happy RE&#8217;ing.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Trixter, who&#8217;s interested in even older multimedia formats than I am, has unearthed utilities to compress special ADPCM variants used by the Covox Sound Master. The formats include 2-, 3- and 4-bit ADPCM formats. For anyone interested in trying to reverse engineer the details of these obscure formats (and I know you&#8217;re out there), check [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-405","post","type-post","status-publish","format-standard","hentry","category-reverse-engineering"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/multimedia.cx\/eggs\/wp-json\/wp\/v2\/posts\/405","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/multimedia.cx\/eggs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/multimedia.cx\/eggs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/multimedia.cx\/eggs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/multimedia.cx\/eggs\/wp-json\/wp\/v2\/comments?post=405"}],"version-history":[{"count":0,"href":"https:\/\/multimedia.cx\/eggs\/wp-json\/wp\/v2\/posts\/405\/revisions"}],"wp:attachment":[{"href":"https:\/\/multimedia.cx\/eggs\/wp-json\/wp\/v2\/media?parent=405"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/multimedia.cx\/eggs\/wp-json\/wp\/v2\/categories?post=405"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/multimedia.cx\/eggs\/wp-json\/wp\/v2\/tags?post=405"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}