{"@context":"http://iiif.io/api/presentation/3/context.json","id":"https://arsc.aviaryplatform.com/iiif/df6k06zm1j/manifest","type":"Manifest","label":{"en":["Polarity and Phase Response in Reverse Playback of Analog Magnetic Tape"]},"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":["Mark Hood (Presenter)"]}},{"label":{"en":["Date"]},"value":{"en":["2010-05 (Created)"]}},{"label":{"en":["Format"]},"value":{"en":["Audio"]}},{"label":{"en":["Description"]},"value":{"en":["Reproducing the content of analog tapes \"backwards\" was long a part of standard practices in dubbing tapes for broadcast distribution and the mass-production of certain configurations of pre-recorded consumer tapes. In addition to increasing efficiency by allowing duplicators to dub multiple audio program streams simultaneously (e.g., the \"forward\" A side and the \"backward\" B side of a cassette), this practice was also shown to prevent the serial accumulation of phase distortion products inherent in the magnetic tape recording process itself. In the current era, audio archivists may be able to achieve a major increase in productivity when digitizing tapes that contain multiple tracks of audio content that were recorded bi-directionally by playing back these tapes on reproducers with head configurations that retrieve all of the content simultaneously. Preservation files created by this method that contain \"backward\" audio can then be processed in the digital domain by a quick and simple reordering of the samples to create a file that plays in a normal, forward manner. As part of the Sound Directions project, the Archives of Traditional Music at Indiana University is conducting research into increasing efficiency and throughput by employing various methods of parallel transfer (simultaneous digitization of multiple audio streams) and workflow automation. Our investigation into the use of reverse tape playback has uncovered some interesting results that may have bearing on the use of this technique in audio archival practice."]}},{"label":{"en":["Language"]},"value":{"en":["English"]}},{"label":{"en":["Publisher"]},"value":{"en":["Association for Recorded Sound Collections"]}},{"label":{"en":["Rights Statement"]},"value":{"en":["Copyright Association for Recorded Sound Collections"]}}],"summary":{"en":["Reproducing the content of analog tapes \"backwards\" was long a part of standard practices in dubbing tapes for broadcast distribution and the mass-production of certain configurations of pre-recorded consumer tapes. In addition to increasing efficiency by allowing duplicators to dub multiple audio program streams simultaneously (e.g., the \"forward\" A side and the \"backward\" B side of a cassette), this practice was also shown to prevent the serial accumulation of phase distortion products inherent in the magnetic tape recording process itself. In the current era, audio archivists may be able to achieve a major increase in productivity when digitizing tapes that contain multiple tracks of audio content that were recorded bi-directionally by playing back these tapes on reproducers with head configurations that retrieve all of the content simultaneously. Preservation files created by this method that contain \"backward\" audio can then be processed in the digital domain by a quick and simple reordering of the samples to create a file that plays in a normal, forward manner. As part of the Sound Directions project, the Archives of Traditional Music at Indiana University is conducting research into increasing efficiency and throughput by employing various methods of parallel transfer (simultaneous digitization of multiple audio streams) and workflow automation. Our investigation into the use of reverse tape playback has uncovered some interesting results that may have bearing on the use of this technique in audio archival practice."]},"requiredStatement":{"label":{"en":["Attribution"]},"value":{"en":["Copyright Association for Recorded Sound Collections"]}},"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/public/images/audio-default.png","type":"Image","format":"image/png"}],"items":[{"id":"https://arsc.aviaryplatform.com/collections/2670/collection_resources/128036/file/239763","type":"Canvas","label":{"en":["Media File 1 of 1 - ARSC_conf_2010_Hood_audio.mp3"]},"duration":2849.47081,"width":640,"height":360,"thumbnail":[{"id":"https://d9jk7wjtjpu5g.cloudfront.net/public/images/audio-default.png","type":"Image","format":"image/png"}],"items":[{"id":"https://arsc.aviaryplatform.com/collections/2670/collection_resources/128036/file/239763/content/1","type":"AnnotationPage","items":[{"id":"https://arsc.aviaryplatform.com/collections/2670/collection_resources/128036/file/239763/content/1/annotation/1","type":"Annotation","motivation":"painting","body":{"id":"https://aviary-p-arsc.s3.wasabisys.com/collection_resource_files/resource_files/000/239/763/original/ARSC_conf_2010_Hood_audio.mp3?1714144101","type":"Audio","format":"audio/mpeg","duration":2849.47081,"width":640,"height":360},"target":"https://arsc.aviaryplatform.com/collections/2670/collection_resources/128036/file/239763","metadata":[]}]}],"annotations":[]}]}