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Surveillance LISTEN Through WALL DOOR Eavesdropper EAR ...
https://ipower.energy/products/surveillance-listen-through-wall-door-eavesdropper-ear-amplifier-eavesdropping-dictograph-listening-hidden-device-bugging-device-audio-bug-monitor-listener
Surveillance LISTEN Through WALL DOOR Eavesdropper EAR Amplifier EAVESDROPPING Dictograph Listening Hidden Device Bugging Device Audio Bug MONITOR LISTENER. No reviews. $75.00 $250.00 You Save 70% ($175.00) Surveillance LISTEN Through WALL DOOR EAR Amplifier EAVESDROPPING.
Sound Evidence: An Archaeology of Audio Recording and ...
https://deepblue.lib.umich.edu/bitstream/handle/2027.42/133386/dpavloun_1.pdf%3Fsequence%3D1
technological history of audio surveillance. “Sound Evidence” begins in 1907 with the invention of the detective dictograph. By examining how visual and narrative culture mediated the dictograph in the 1910s, I make a case for the historical significance of popular mediations of
“The Dictograph Hears All”: An Example of Surveillance ...
https://www.semanticscholar.org/paper/%E2%80%9CThe-Dictograph-Hears-All%E2%80%9D%3A-An-Example-of-in-the-Kemp/02cc4455b020438b7a5f1cfc3cc7f8e60830968b
During the first decade of the twentieth century, Kelley M. Turner of New York invented a telephone apparatus of very high sound sensitivity, which he called the “Dictograph.” (It should not be confused with the Dictaphone, a device used to record dictation.) Although his original idea was for a communications system with a great variety of applications, the …
Dictograph - vintage phones
https://www.vintagephones.com.au/Pages/Dictograph/Dictograph.htm
In 1910 Turner used the Metrophone to produce the "Detective Dictograph", a slightly larger and even more sensitive microphone intended for surveillance work. It was used by the Burns detective agency to secure convictions in a number of major criminal and graft cases.
Sound Evidence: An Archaeology of Audio Recording and ...
https://deepblue.lib.umich.edu/handle/2027.42/133386
I examine three cultural moments when sound surveillance became a major topic of public and cultural interest, and I argue that crime cinema and television must be understood as constituent parts of the technological history of audio surveillance. “Sound Evidence” begins in 1907 with the invention of the detective dictograph.
Site Title - Home
http://getalarmsplus.com/
Who We Are. For more than 50 years Dictograph Alarms Plus has been installing and servicing alarms and camera systems in the Greater New Orleans Area, the Northshore and the Mississippi Gulf Coast. We provide 24/7 alarm monitoring and have expanded our services to include home entertainment, custom audio systems and computer networking.
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