Video
Company, Kay. n.d. Kay Sona-Graph (Video).
Video
2012. “Demonstration Acoustic Siren”. Smithsonian National Museum of American History. https://www.youtube.com/watch?v=Rs7CC4pdJeM.
Video
2012. “Rotator Siren”. Smithsonian Institution. https://www.youtube.com/watch?v=hzoelA3Pm8E.
Video
Fondazione Scienza e Tecnica,. (17 August 2015AD) 2015. “Manometric Capsule, Resonance, Koenig Sound Analyzer”. Florence, Italy: Fondazione Scienza e Tecnica. https://www.youtube.com/watch?v=OHdL-65dkkY.
Video
Fondazione Scienza e Tecnica,. (17 August 2015AD) 2015. “Demonstration Of A Disk Siren”. Florence, Italy: Fondazione Scienza e Tecnica. https://www.youtube.com/watch?v=9OHfQLtMWWc.
Video
University of Michigan,. (25 July 2014AD) 2014. “Siren Disk Demo – The Musical Scale”. Houghton, Michigan: Michigan Technological University. https://www.youtube.com/watch?v=Hpt2LWgGQwo.