Category Archives: SIGSALY

The Progress of Necessity

In 99% Invisible’s episode Vox Ex Machina, the producer outlines the transformation of a piece of groundbreaking technology from recreational to military use in the midst of the Second World War. The “Voder” was introduced in 1939 to a crowd of dazzled people at the World Fair. A marvel of mechanical mimicking of the human vocal […] Continue reading

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Sounds in Cryptography and Podcasts

What I found most interesting about the “Vox Ex Machina” podcast was Homer Dudley’s choice to use a pair of vinyl phonograph records as the key both the encryption and decryption process. Prior to listening to this podcast, I had not considered noise could be used as an encryption method. What surprised me even more […] Continue reading

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From Voxcoder to SIGSALY

The Voxcoder was one of the most interesting things I have ever heard of. The origin of the machine, being just a voice changer/imitator, really made me wonder what the creator had in mind when he made the machine. Being able to replicate a human or animal voice opens up so many pathways such as […] Continue reading

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Creating an Intriguing Podcast

The most interesting thing I discovered about the episode was how much of an impact the work of Bell Labs has on our lives today. In listening to the description of the amazing machine from the World’s Fair in 1939, I immediately assumed that all of its technology was incredibly outdated. However, I was amazed […] Continue reading

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Cryptography Based in Recreation

99% Invisible’s “Vox Ex Machina” tells of the history of vocal synthesis. This episode of the podcast was very informative, following vocal synthesis from it’s inception to its modern-day applications. As I learned during the episode, vocal synthesis played a key role in secure communications for the Allies during World War 2. I found this interesting […] Continue reading

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