{"id":2520,"date":"2024-09-05T15:11:37","date_gmt":"2024-09-05T04:11:37","guid":{"rendered":"http:\/\/www.menogue.com\/evan\/blog\/?p=2520"},"modified":"2024-09-05T15:11:37","modified_gmt":"2024-09-05T04:11:37","slug":"asa-wa-audio-visual-archives-and-ai-pd","status":"publish","type":"post","link":"https:\/\/menogue.com\/evan\/blog\/index.php\/2024\/09\/05\/asa-wa-audio-visual-archives-and-ai-pd\/","title":{"rendered":"ASA WA Audio Visual archives and AI PD"},"content":{"rendered":"

2 August 2024, NAA Offices Perth<\/span><\/p>\n

Managing Risk with AV archives \u2013 Ben Chesterman NAA<\/h2>\n

Three aspects that need to be thought about when considering risk for media preservation.<\/p>\n

Physical media<\/h3>\n

NAA has a vinegar syndrome label for their cans, includes acid level and date. Also part of their metadata. Vinegar syndrome has OH&S considerations \u2013 can damage skin\/ cause irritation.<\/p>\n

Increasing opportunities for home grown gear to playback media in old formats.<\/p>\n

Digitisation<\/h3>\n

Really important to emphasise to management that the digitisation step is only one small part in digital preservation!<\/p>\n

Make sure the digitised files link back to the original physical master. Are our MFA links clear enough?<\/p>\n

Cyber security compliance for old workstations is becoming a problem e.g. 10-yr old specialised equipment can\u2019t be updated with latest patches.<\/p>\n

NAA has born digital file standards for AV \u2013 have a quick reference. https:\/\/www.naa.gov.au\/information-management\/storing-and-preserving-information\/preserving-information\/born-digital-file-format-standards<\/a><\/p>\n

Outsourcing \u2013 virus scanning on delivery under cybersec policies \u2013 big problem for LTO tape delivery. Lesson: need timeline flexibility in outsourced digitisation because things go wrong, and even managing the service provider relationship itself.<\/p>\n

Quality checks: Ben, with AV manager experience, automated QC checkers are not bullet-proof \u2013 you need to put eyes on the digitised materials. QC metadata and reports must be kept alongside with the rest of the record for the object.<\/p>\n

Digital preservation<\/span><\/h3>\n

Mediaflex system used by NAA \u2013 they trust the fixity of the storage used in this system. Putting out to LTO tapes, and a copy in Sydney and Canberra on Hitachi storage (private cloud?). NAA using MD5 checksums.<\/p>\n

DROID not deep enough for AV metadata scraping, MediaInfo is better. Might be a problem for format obsolescence if you don\u2019t know what you\u2019ve got.<\/p>\n

Video digitisation and DCWA \u2013 Deb Paisley & Jameson Feakes<\/h2>\n

EzDigital on Fitzgerald St are competent for personal archive digitisation according to Jameson.<\/p>\n

DCWA is pitching for new equipment to scan 3D objects in their next funding round, likely to be housed at WA Museum. Bound book scanner is coming any day now.<\/p>\n

DCWA piloting a metadata creation service for AV digitisation, video (automated?) delivering an amended version of the return spreadsheet they\u2019re working with.<\/p>\n

What\u2019s their thinking on raw footage? esp if it hasn\u2019t been produced? Thinking they will keep raw footage tapes because they have direct UWA relevance. Might not stick for born-digital materials? Auto-generated transcripts? Yes will be considering.<\/p>\n

Should we add a transcript step to our DCWA returned analogue video material?<\/p>\n

indicates the interaction between EDRMS Trim and Recollect. Recollect allowing inter-institution links between different collection objects held in various parts of the university e.g. Calloway Music Archives and University Archives.<\/p>\n

Toolkit I \u2013 Jameson Feakes DCWA<\/h2>\n

For ingesting DV material from tape: use old PCs \u2013 adding Firewire cards to them later. Or finding old computers with FW sockets built in.<\/p>\n

Jameson has learnt Python as glue for his automation efforts. About time I had a crack at learning Python?<\/p>\n

Toolkit II \u2013 Ben Chesterman NAA<\/h2>\n

There is a difference between different film scanners in quality \/ perception. e.g. ScanStation vs Cintel these will work differently for different stocks and different film gauges.<\/p>\n

Cyan and Yellow dyes fade first in film, hence some poorly stored old film may have a magenta tint, which can be corrected from the DPX\u2019s.<\/p>\n

If outsourcing digitisation, write scripts to QC metadata of incoming digitised files using MediaInfo to compare against our expected requirements? e.g. format validation, confirming tools\/equipment used.<\/p>\n

Teracopy: MD5 and SHA256 are too slow when compared to xxHash options, NAA is considering adopting this format for their fixity checking as their standard is SHA512. xxHash is developed by ex-Googler. James Doig is exploring this at the NAA.<\/p>\n

NAA using 7Zip to create their TAR files.<\/p>\n

Best place to start for web archiving research is IIPC WARC tools project<\/a>. Oral histories post production from two mic recording \u2013 try noise gating channels separately and merging together after \u2013 only on access file, not pres file.<\/p>\n

AI: implications for archival methods and case studies \u2013 Piers Higgs & Meg Travers Gaia Resources<\/h2>\n

AI doesn\u2019t necessarily fit into an OAIS model, but can provide extra features in different phases: e.g. ingest, access, administration<\/p>\n

Archivists are good at trust and governance, this will be in good stead when considering how AI can be implemented. AI might speed up the time to access and discovery if it\u2019s part of the workflow?<\/p>\n

General horror in the room if source materials are OCR\u2019d or handwriting recognition to text, and with language modernisation to make the content accessible to a modern audience. e.g. translating the \u2018convict slang\u2019 used in the early WA colony police occurrences books. Concerned that our archive users will never go to the source and read it for themselves. Gaia Resources tools present the original material alongside the OCR text so the computer output can be checked.<\/p>\n

Q&A panel<\/h2>\n

Language models, community built with \u2018ethically sourced\u2019 training data \u2013 these might be the ones to look out for.<\/p>\n

 <\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

2 August 2024, NAA Offices Perth Managing Risk with AV archives \u2013 Ben Chesterman NAA Three aspects that need to be thought about when considering risk for media preservation. Physical media NAA has a vinegar syndrome label for their cans, includes acid level and date. Also part of their metadata. Vinegar syndrome has OH&S considerations […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2520","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/menogue.com\/evan\/blog\/index.php\/wp-json\/wp\/v2\/posts\/2520","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/menogue.com\/evan\/blog\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/menogue.com\/evan\/blog\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/menogue.com\/evan\/blog\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/menogue.com\/evan\/blog\/index.php\/wp-json\/wp\/v2\/comments?post=2520"}],"version-history":[{"count":0,"href":"https:\/\/menogue.com\/evan\/blog\/index.php\/wp-json\/wp\/v2\/posts\/2520\/revisions"}],"wp:attachment":[{"href":"https:\/\/menogue.com\/evan\/blog\/index.php\/wp-json\/wp\/v2\/media?parent=2520"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/menogue.com\/evan\/blog\/index.php\/wp-json\/wp\/v2\/categories?post=2520"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/menogue.com\/evan\/blog\/index.php\/wp-json\/wp\/v2\/tags?post=2520"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}