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Optical Sound Examples — Endpoint Audio Labs
https://www.endpointaudio.com/optical-sound-detail
Optical Sound Examples. The major commercial use of optical sound on film started in the late 1920s. In its simplest form, optical sound is just flickering the light from a light bulb, similar to waving a hand in front of a flashlight. The light being modulated by the recording is turned into electrical sound signals via a phototube or photodiode.
What Is the Optical Audio Port, and When Should I Use It?
https://www.howtogeek.com/241828/what-is-the-optical-audio-port-and-when-should-i-use-it/
What Exactly Is Optical Audio? The vast majority of cabling you use for your media centers, personal computers, and audio/visual equipment uses electrical signals. Be it analog or digital, the signal is sent as an electrical impulse over conductive wire. Every cable, from the speaker wire on your 1970s turntable to the HDMI cable on your new ...
Listening To Long Forgotten Voices: An Optical Audio ...
https://hackaday.com/2021/01/02/listening-to-long-forgotten-voices-an-optical-audio-decoder-for-16-mm-film/
Listening To Long Forgotten Voices: An Optical Audio Decoder For 16 Mm Film. Like many of us, [Emily] found herself on COVID-19 lockdown over the summer. To make the most of her time in isolation ...
The Optical Sound Decoder Extracts Audio Tracks From ...
https://www.hackster.io/news/the-optical-sound-decoder-extracts-audio-tracks-from-vintage-film-reels-fd201ef623be
Emily Velasco’s Optical Sound Decoder is a very cool analog device that is able to extract and play back audio from vintage film reels. Emily Velasco is one of our favorite makers because her projects are always incredibly imaginative and creative. She has a serious thing for vintage, analog technology and always finds a way to utilize that ...
Classic Optical Sound Recording - YouTube
https://www.youtube.com/watch?v=OjKQNykc_04
This is a 1943 film production explaining how optical sound was recorded for film. The audio was very low quality as you can see but was an effective way of...
How Movie Sound Works | HowStuffWorks
https://entertainment.howstuffworks.com/movie-sound.htm
The most common method is an optical process whereby a transparent line is recorded along one side of the film. This strip varies in width according to the frequency of the sound. For this reason, it is known as a variable-area soundtrack.As the film passes the audio pickup, an exciter lamp provides a bright source of light, focused by a lens through the transparent line.
16mm Film Optical Sound Transfer Convert Digitize - (702 ...
http://vegasvideotransfer.com/film/16mm-optical/
We transfer and preserve a wide range of audio using only the top equipment. This is the best service in the country to handle all your audio transfer needs. Film to DVD (702)505-0701. Film Transfer in Las Vegas . Since 2004, we’ve offered high quality 8mm film transfer of your home or commercial movies to DVD.
16mm Film & Audio
https://www.sfu.ca/~gotfrit/ZAP_Sept.3_99/f/fsnd_lect_16mm_mix.html
16mm Film & Audio. 16mm film is projected with a mono optical track. The current type is called variable area. A transparent line in a black background. The relative width of the transparent part (not the area) is varied in accordance with the sound waveform. (35mm uses SVA - Stereo Variable Area) The frequency response for optical is roughly ...
Sound-on-film - Wikipedia
https://en.wikipedia.org/wiki/Sound-on-film
Sound-on-film is a class of sound film processes where the sound accompanying a picture is recorded on photographic film, usually, but not always, the same strip of film carrying the picture. Sound-on-film processes can either record an analog sound track or digital sound track, and may record the signal either optically or magnetically.Earlier technologies were sound-on-disc, …
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