{"@context":"http://iiif.io/api/presentation/3/context.json","id":"https://arsc.aviaryplatform.com/iiif/nc5s75874f/manifest","type":"Manifest","label":{"en":["Tape Equalization Basics and Digital Techniques for Equalization Conversion"]},"logo":"https://d9jk7wjtjpu5g.cloudfront.net/organizations/logo_images/000/000/019/original/ARSC_Full_Logo_RGB_K.jpg?1605438091","metadata":[{"label":{"en":["Agent"]},"value":{"en":["Gary A. Galo (Presenter)","Brad McCoy (Chair)"]}},{"label":{"en":["Date"]},"value":{"en":["2024-05-16 (Created)"]}},{"label":{"en":["Format"]},"value":{"en":["Audio","Slides"]}},{"label":{"en":["Description"]},"value":{"en":["\u003cp\u003eArchivists and engineers are often faced with the need to play analog tapes recorded with equalization standards that their playback equipment does not support. Having to play a European CCIR tape on a machine with American NAB equalization is a common example. This presentation will begin with a tutorial on tape equalization and the reasons why equalization is necessary in order for analog magnetic tape recording and playback to work at all. The discussion will include an explanation of the frequency response of a magnetic playback head, and the approaches taken by the NAB, CCIR and AES standards, in both record and playback, to achieve a flat playback frequency response. Armed with an understanding of the principals of tape equalization and the time constants specified by the various standards, engineers and archivists can implement digital correction curves using shelving filters, to accurately re-equalize any tape transferred with the wrong playback equalization. The digital equalization modules in iZotope’s RX and Ozone software, with their analog filter emulations, can provide an excellent platform for creating these correction curves. The presentation will offer software settings for converting commonly used tape equalizations, and the formulas for creating any custom conversion curves that may be required.\u003c/p\u003e"]}},{"label":{"en":["Publisher"]},"value":{"en":["Association for Recorded Sound Collections"]}},{"label":{"en":["Rights Statement"]},"value":{"en":["\u003cp\u003eCopyright Association for Recorded Sound Collections\u003c/p\u003e"]}},{"label":{"en":["Language"]},"value":{"en":["English"]}}],"summary":{"en":["\u003cp\u003eArchivists and engineers are often faced with the need to play analog tapes recorded with equalization standards that their playback equipment does not support. Having to play a European CCIR tape on a machine with American NAB equalization is a common example. This presentation will begin with a tutorial on tape equalization and the reasons why equalization is necessary in order for analog magnetic tape recording and playback to work at all. The discussion will include an explanation of the frequency response of a magnetic playback head, and the approaches taken by the NAB, CCIR and AES standards, in both record and playback, to achieve a flat playback frequency response. Armed with an understanding of the principals of tape equalization and the time constants specified by the various standards, engineers and archivists can implement digital correction curves using shelving filters, to accurately re-equalize any tape transferred with the wrong playback equalization. The digital equalization modules in iZotope\u0026rsquo;s RX and Ozone software, with their analog filter emulations, can provide an excellent platform for creating these correction curves. The presentation will offer software settings for converting commonly used tape equalizations, and the formulas for creating any custom conversion curves that may be required.\u003c/p\u003e"]},"requiredStatement":{"label":{"en":["Attribution"]},"value":{"en":["\u003cp\u003eCopyright Association for Recorded Sound Collections\u003c/p\u003e"]}},"provider":[{"id":"https://arsc.aviaryplatform.com/aboutus","type":"Agent","label":{"en":["Association for Recorded Sound Collections"]},"homepage":[{"id":"https://arsc.aviaryplatform.com/","type":"Text","label":{"en":["Association for Recorded Sound Collections"]},"format":"text/html"}],"logo":[{"id":"https://d9jk7wjtjpu5g.cloudfront.net/organizations/logo_images/000/000/019/original/ARSC_Full_Logo_RGB_K.jpg?1605438091","type":"Image"}]}],"thumbnail":[{"id":"https://d9jk7wjtjpu5g.cloudfront.net/collection_resource_files/thumbnails/000/253/127/small/Pages_from_ARSC_conf_2024_Galo_thmb.jpg?1729563526","type":"Image","format":"image/jpeg"}],"items":[{"id":"https://arsc.aviaryplatform.com/collections/2875/collection_resources/136532/file/253127","type":"Canvas","label":{"en":["Media File 1 of 1 - ARSC_conf_2024_Galo_audio.mp3"]},"duration":3107.784,"width":640,"height":360,"thumbnail":[{"id":"https://d9jk7wjtjpu5g.cloudfront.net/collection_resource_files/thumbnails/000/253/127/small/Pages_from_ARSC_conf_2024_Galo_thmb.jpg?1729563526","type":"Image","format":"image/jpeg"}],"items":[{"id":"https://arsc.aviaryplatform.com/collections/2875/collection_resources/136532/file/253127/content/1","type":"AnnotationPage","items":[{"id":"https://arsc.aviaryplatform.com/collections/2875/collection_resources/136532/file/253127/content/1/annotation/1","type":"Annotation","motivation":"painting","body":{"id":"https://aviary-p-arsc.s3.wasabisys.com/collection_resource_files/resource_files/000/253/127/original/ARSC_conf_2024_Galo_audio.mp3?1727388740","type":"Audio","format":"audio/mpeg","duration":3107.784,"width":640,"height":360},"target":"https://arsc.aviaryplatform.com/collections/2875/collection_resources/136532/file/253127","metadata":[]}]}],"annotations":[]}]}