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Author Topic: Pneumatic Audio Amplifier Mark Lensenmayer Phenomenal Film Handler Posts: 1605 From: Upper Arlington, OH Registered: Sep 1999 posted 12-12-2002 11:29 AM                     This site has some of the strangest things I've ever seen. Museum of RetroTechnology They have an audio amplifier that uses compressed air, pictures of 2-wheeled cars balanced by gyroscopes, some strange steam locomotives, and even some 18th century "combat cutlery". I'd love to hear what that air-powered amplifier sounds like! I think many of you will find this to be a very interesting website.  |  IP: Logged Tom Doyle Expert Film Handler Posts: 176 From: Bristol, CT, USA Registered: Nov 2002 posted 12-12-2002 04:19 PM                     If you like that, you might want to check out the Dead Media Project. They have a lot of stuff on sound reproduction and pnuematic tubes. It's mostly collected notes by its members on various dead media (not many pictures), but there are a lot of odd-ball inventions there. (Bruce Sterling wrote some of the contributions.) The notes can be searched through: http://www.deadmedia.org/notes/index.html They have short notes on some common film topics, such as Cinerama and IMAX, but they also have blurbs on more obscure ones, such as Thomascolor, Polyvision, the Zoopraxiscope, Keystone projectors, and others. Or, if you aren't interested in film, look up the cat piano, American Missile Mail, or vinyl video.  |  IP: Logged Michael Schaffer "Where is the Boardwalk Hotel?" Posts: 4143 From: Boston, MA Registered: Apr 2002 posted 12-13-2002 04:15 AM                        "Navy submarine U.S.S. Barbero fired a guided missile carrying 3,000 letters at the Naval Auxiliary Air Station in Mayport, Florida." I like the Retro Technologies Museum, but I was looking in vain for the SA-10  |  IP: Logged William Hooper Phenomenal Film Handler Posts: 1879 From: Mobile, AL USA Registered: Jun 99 posted 12-24-2002 12:58 AM                        Kevin Brownlow's phenomenal book about some aspects of the silent film era, _The Parade's Gone By_ has a recounting by an engineer who developed early sound films for theaters before useful electrical amplifiers by incorporating pneumatic amplifiers. IIRC, that was one of the systems which were to record the audio first, then the actors would be filmed as they lip-synced to the audio. A number of animated films like Fleischer's Popeye & Betty Boop cartoons in the sound era followed the same procedure!  |  IP: Logged Michael Schaffer "Where is the Boardwalk Hotel?" Posts: 4143 From: Boston, MA Registered: Apr 2002 posted 12-24-2002 05:03 AM                        A number of scenes in "Chicken Run" were also synced to the dialogue which had been recorded before.  |  IP: Logged

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