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LS (lain@lain.com)'s status on Saturday, 01-Feb-2025 09:02:44 JST LS

how many fps can the human ear even see

In conversation about 23 days ago from lain.com permalink
- Proud owner of a potato sack :flag: (hj@shigusegubu.club)'s status on Saturday, 01-Feb-2025 09:04:37 JST Proud owner of a potato sack :flag:
  in reply to
  
  @lain about 21500 frames per second
  
  In conversation about 23 days ago permalink
  
  LS likes this.
- Matthew Skala (mattskala@mstdn.io)'s status on Saturday, 01-Feb-2025 09:18:52 JST Matthew Skala
  in reply to
  
  @lain Up to about one eighth of a frame per second. https://en.wikipedia.org/wiki/Slow-scan_television
  In conversation about 23 days ago permalink
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  1. Slow-scan television
    
    Slow-scan television (SSTV) is a picture transmission method, used mainly by amateur radio operators, to transmit and receive static pictures via radio in monochrome or color. A literal term for SSTV is narrowband television. Analog broadcast television requires at least 6 MHz wide channels, because it transmits 25 or 30 picture frames per second (see ITU analog broadcast standards), but SSTV usually only takes up to a maximum of 3 kHz of bandwidth. It is a much slower method of still picture transmission, usually taking from about eight seconds to a couple of minutes, depending on the mode used, to transmit one image frame. Since SSTV systems operate on voice frequencies, amateurs use it on shortwave (also known as HF by amateur radio operators), VHF and UHF radio. History Concept The concept of SSTV was introduced by Copthorne Macdonald in 1957–58. He developed the first SSTV system using an electrostatic monitor and a vidicon tube. It was deemed sufficient to use 120 lines and about 120 pixels per line to transmit a black-and-white still picture within a 3 kHz telephone channel...
  LS likes this.