Upon reading the bold statement at the beginning of the Preservation Reformatting chapter of ARSCâ€™s Guide to Audio Preservation, â€œA restored version of a sound recording cannot be considered a preservation copy,â€ I had a moment of kneejerk skepticism. While I think that anyone can appreciate the truthiness of that claim, it feels a little weird to authoritatively ignore an important concept: digitization always results in the creation of a new digital object.
A point made by Trevor Owens in a 2012 post on The Signal comes to mind:
â€œThe idea of digitization obfuscates the fact that digitization is not a preservation act. Digitization is a creative act.â€
Owens is arguing that a digital surrogate should not simply be considered a handy duplicate because digitization tools (and the preservationists who use them) will always be making decisions about what they are capturing. Some of the decisions may seem harmless or minuscule, but they are still judgments that prioritize certain significant properties. Furthermore, the decisions regarding what materials get digitized and which ones donâ€™t also demonstrate these types of values. Still, I can understand where ARSC is coming from. â€œWarts and allâ€ preservation copies allow scholars to scrutinize the artifactual qualities of items, and they also have a way ofâ€”to use a tired phraseâ€”bringing history to life.
Still, too much faith in these preservation copies can lead to problems. Sarah Werner illustrates this point in her discussion of the limitations of the digitizations on Early English Books Online. The digitizations were largely drawn from microfilms of early books and so certain unexpected details can be lost or misinterpreted. The title page of an elegy mourning the death of Prince Henry, for instance, is a mistakenly reversed negative because the person who processed the microfilm didnâ€™t believe that the text was white on a black background.
Interestingly, FADGIâ€™s Technical Guidelines for Digitizing Cultural Heritage Materials does not subscribe to ARSCâ€™s relatively dogmatic principles regarding verisimilitude. Take, for instance, this snippet that discusses FADGIâ€™s view on the adjustment of master image files:
â€œThere is a common misconception that image files saved directly from a scanner or digital camera are pristine or unmolested in terms of the image processingâ€¦ Because of this misconception, many people argue that you should not perform any post-scan or post-capture adjustments on image files because the image quality might be degraded. We disagree. The only time we would recommend saving unadjusted files is if they meet the exact tone and color reproduction, sharpness, and other image quality parameters that you require.â€
FADGIâ€™s reasoning is a mix of ideological concerns and practical thinking. It recognizes that advocacy for adjusting master images may cost it some blue ribbons in the future (â€œFirst Place â€“ Most Authentic in Showâ€); however, it also feels that â€œadjusting master files to a common rendition provides significant benefits in terms of being able to batch process and treat all images in the same manner.â€ Furthermore, multiple copies (master/raw, production, access) might create prohibitive storage costs.
In their eyes, post-capture adjustments will result in insignificant data loss and raw files are often more trouble than they are worth. Might this be FADGI taking proactive steps to avoid creating more situations like Sarah Werner described: producing facsimiles of things that donâ€™t actually exist?
This makes me wonder: what is the cause for these contrasting perspectives? Is it something to do with the different materials being preserved? ARSCâ€™s definition of preservation reformatting might provide a clue: â€œthe process of transferring the essence or intellectual content of an object to another medium.” Iâ€™m not 100% certain what they mean by â€œessenceâ€; perhaps they are referring to the differences between artifactual and informational qualities. I also see this as a nod to a precept of psychoacoustics: perception and meaning are not bound to one another. Still, the very idea that someone is prioritizing either essence or intellectual content seems to undermine the authenticity of any preservation copy.
Also, ARSC does recognize the fact that audio files arenâ€™t necessarily â€œunmolestedâ€ during transfer from analog to digital. In my current field study at UMD Digital Conversion and Media Reformatting I am following ARSC guidelines to digitize reel-to-reel recordings and this requires me to adjust the azimuth of the reel-to-reel player before transferring each recording into Adobe Audition. During this process I am essentially adjusting the playback head based on what sounds right to my ear. The resulting preservation master canâ€™t be called 100% raw. But I suppose that â€œdo the best you can out thereâ€ doesnâ€™t make a very strong opening statement to your preservation guidelines!
Ultimately, I wonder how different the philosophies of ARSC and FADGI are in practice. They look pretty different on the page in regards to tone, with ARSC being a bit dogmatic and FADGI as a relatively cavalier pragmatist, but are they so divergent? Is FADGI really â€œthrowing awayâ€ any more data by virtue of post-capture adjustments than ARSC is by prizing the preservation copy? I suppose not, if you believe that digitization is a creative act in the first place.