{"id":686866,"date":"2024-11-06T05:04:16","date_gmt":"2024-11-06T05:04:16","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/smpte-rp-1042005\/"},"modified":"2024-11-06T05:04:16","modified_gmt":"2024-11-06T05:04:16","slug":"smpte-rp-1042005","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/smpte\/smpte-rp-1042005\/","title":{"rendered":"SMPTE RP 104:2005"},"content":{"rendered":"<p><b>Abtract:<\/b><\/p>\n<p>(1.1) This practice describes the cross-modulation method of measuring high-frequency distortion introduced during the production of variable-area audio motion-picture release prints. Through measurements of distortion at various negative densities, it is possible to choose negative densities that will produce audio prints having minimum distortion and optimum quality under the particular method of processing employed. (1.2) Cross-modulation tests are used extensively in establishing and maintaining photographic control of variable-area audio tracks. In consideration of waveform, output level, and noise reduction, it is necessary for variable-area prints to have high density contrast. At satisfactorily high track densities, an appreciable amount of image spread occurs, producing partial rectification of high frequencies. To compensate for this, an equal and opposite amount of image spread is introduced into the negative. Therefore, to establish the correct negative-and print-density combination, amplitude-modulated high frequencies are recorded and printed over a suitable density range. By measuring the rectified component from the prints, the correct density combinations are indicated.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>SMPTE Recommended Practice &#8211; Cross-Modulation Tests for Variable-Area Photographic Audio Tracks<\/b><\/p>\n<table style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/smpte\/\"><b>SMPTE<\/b><\/a><\/td>\n<td>2005-12-16<\/td>\n<td>7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":686879,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[641,718,722,2684],"product_tag":[],"class_list":{"0":"post-686866","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-33-160-30","7":"product_cat-37-060","8":"product_cat-37-060-99","9":"product_cat-smpte","11":"first","12":"instock","13":"sold-individually","14":"shipping-taxable","15":"purchasable","16":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/686866","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/686879"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=686866"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=686866"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=686866"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}