VisualAudio

VisualAudio is a project that retrieves sound from a picture of a phonograph record. It originated from a partnership between the Swiss National Sound Archives and the School of Engineering and Architecture of Fribourg.

VisualAudio is a project that retrieves sound from a picture of a phonograph record. It originated from a partnership between the Swiss National Sound Archives and the School of Engineering and Architecture of Fribourg. == Method== == Advantages and disadvantages== With its intermediate photographic stage, this solution solves several significant challenges found in archiving systems. Speed of the archiving process, because of the relatively short time for the photo-shooting. The storage of information occurs on an analog film so it is not reliant on a technology that could become quickly obsolete and the freezing and storing of the record's state in a new format allows the retrieval of the information later using new technologies. The periodic transfer to new data storage media is avoided because the photographic film has a life span of several hundred years. The possibility of using the system for vertical cut records. Disadvantages of the system: Not usable for wax cylinders Some irregularities such as rounded or bulging records, which do not affect play on a traditional turntable, can influence the sound of VisualAudio. ==See also== Laser turntable IRENE (Image, Reconstruct, Erase Noise, Etc.) technology ==References== ===Sources=== ==Bibliography== Cavaglieri, Stefano S. "Practical VisualAudio: A Long Journey to Tangible Results". Sustainable Audiovisual Collections Through Collaboration: Proceedings of the 2016 Joint Technical Symposium. Indiana University Press, 2017. Johnsen, Ottar, et al. "Detection of the Groove Position in Phonographic Images." 2007 IEEE International Conference on Image Processing. Vol. 6. IEEE, 2007. Stotzer, Sylvain, et al. "Groove extraction of phonographic records". Document Analysis Systems VII: 7th International Workshop, DAS 2006, Nelson, New Zealand, February 13-15, 2006. Proceedings 7. Springer Berlin Heidelberg, 2006. Johnsen, Stefano S. Cavaglieri–Prof Ottar, and Frédéric Bapst. "Optical Retrieval and Storage of Analog Sound Recordings." Stotzer, Sylvain, et al. "Phonographic sound extraction using image and signal processing. " 2004 IEEE International Conference on Acoustics, Speech, and Signal Processing. Vol. 4. IEEE, 2004. Stotzer, Sylvain, et al. "Visualaudio: an optical technique to save the sound of phonographic records." IASA Journal (2003): 38-47. Stotzer, Sylvain. VisualAudio: Caractéristiques matérielles des disques phonographiques. Département d'informatique, Université de Fribourg, 2003. Johnsen, Ottar, et al. "VisualAudio: eine optische Technik zur Bewahrung phonographischer Auf-nahmen". Fadeyev, Vitaliy, and Carl Haber. "Reconstruction of mechanically recorded sound by image processing." Journal of the Audio Engineering Society 51.12 (2003): 1172-1185. McCann, M., P. Calamia, and N. Ailon. "Audio Extraction from Optical Scans of Records". (2004). Tian, Baozhong, and John L. Barron. "Reproduction of sound signal from gramophone records using 3d scene reconstruction." Irish Machine Vision and Image Processing Conference. 2006. Stotzer, Sylvain. Phonographic record sound extraction by image processing. Diss. Université de Fribourg, 2006. Cornell, Earl W., et al. "Using optical metrology to reconstruct sound recordings." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 579.2 (2007): 901-904. Li, Beinan, Simon de Leon, and Ichiro Fujinaga. "Alternative Digitization Approach for Stereo Phonograph Records Using Optical Audio Reconstruction." ISMIR. 2007. Boltryk, P. J., et al. "Noncontact surface metrology for preservation and sound recovery from mechanical sound recordings". Journal of the Audio Engineering Society 56.7/8 (2008): 545-559. Aleksandrović, Vesna. "Analog/digital sound. National Library of Serbia digital collection of 78 rpm gramophone records." Review of National Center for Digitization 12 (2008): 37-42. Li, Beinan, Jordan BL Smith, and Ichiro Fujinaga. "Optical Audio Reconstruction for Stereo Phonograph Records Using White Light Interferometry." ISMIR. 2009. Tian, Baozhong, Samuel Sambasivam, and John Barron. "Practical digital playback of gramophone records using flat-bed scanner images". Audio Engineering Society Convention 131. Audio Engineering Society, 2011. Tian, Baozhong, and John L. Barron. "Using computer vision technology to play gramophone records". Journal of the Audio Engineering Society 59.7/8 (2011): 514-538. Janukiewicz, Kristofer. "A Laser Triangulation Approach for Optical Audio Reconstruction of Phonograph Records." (2016). Cavaglieri, Stefano S. "Practical VisualAudio: A Long Journey to Tangible Results." Sustainable Audiovisual Collections Through Collaboration: Proceedings of the 2016 Joint Technical Symposium. Indiana University Press, 2017. Chenot, Jean-Hugues, Louis Laborelli, and Jean-Etienne Noiré. "Saphir: Digitizing broken and cracked or delaminated lacquer 78 rpm records using a desktop optical scanner." Chenot, Jean-Hugues, Louis Laborelli, and Jean-Étienne Noiré. "Saphir: optical playback of damaged and delaminated analogue audio disc records." Journal on Computing and Cultural Heritage 11.3 (2018): 14-1. Hawkins, Julia, and Bryce Roe. "IRENE audio preservation at the Northeast Document Conservation Center: Developing workflows and standards for preservation projects that use innovative technology." Journal of Digital Media Management 9.3 (2021): 262-278. Chenot, Jean-Hugues, and Jean-Etienne Noiré. "Challenges in Optical Recovery of Otherwise Unplayable Analogue Audio Disc Records. " Audio Engineering Society Conference: AES 2023 International Conference on Audio Archiving, Preservation & Restoration. Audio Engineering Society, 2023. Using Optical Metrology to Restore Sound Recordings Using Physics to Restore Early Sound Recordings Reconstruct Sound Recordings

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