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Keywords = open-reel tapes

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13 pages, 7776 KiB  
Article
Reading Tapes Backwards: A Legitimate Approach to Saving Time and Money in Digitization Projects?
by Federica Bressan, Valentina Burini, Edoardo Micheloni, Antonio Rodà, Richard L. Hess and Sergio Canazza
Appl. Sci. 2021, 11(15), 7092; https://doi.org/10.3390/app11157092 - 31 Jul 2021
Cited by 2 | Viewed by 3257
Abstract
Audio carriers are subject to a fast and irreversible decay. In order to save valuable historical recordings, the audio signal and other relevant information can be extracted from the source audio document and stored on another medium, normally a redundant digital storage system. [...] Read more.
Audio carriers are subject to a fast and irreversible decay. In order to save valuable historical recordings, the audio signal and other relevant information can be extracted from the source audio document and stored on another medium, normally a redundant digital storage system. This procedure is called ’content transfer’. It is a costly and time-consuming procedure. There are several solutions with which the cost can be reduced. One consists of picking up all tracks from a two-sided tape in one pass. This means that some tracks will be digitized forward and some backwards, to be subsequently corrected in the digital workstation. This article is concerned with the question of whether reading tracks backwards introduces unwanted effects into the signal. In particular, it investigates whether a difference can be observed between audio signals read forward or backwards and, if so, whether the difference is measurable. The results show that a difference can be observed, yet this is not enough to conclude that this “backwards” approach should not be used. The complexity of the situation is presented in the discussion. Future work includes reproducing this experiment with different audio equipment, as well as a perception test with human subjects. Full article
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