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http://people.csail.mit.edu/mrub/VisualMic/ http://people.csail.mit.edu/mrub/VisualMic/ uses the rolling shutter to get audio from regular-framerate video of a

http://people.csail.mit.edu/mrub/VisualMic/ http://people.csail.mit.edu/mrub/VisualMic/ uses the rolling shutter to get audio from regular-framerate video of a bag of chips.

tecleandor 3y ago
In that paper they use a "regular" high framerate camera. Those cameras are usually low resolution. I guess what could be more interesting or practical: Low-res very high FPS, or very high resolution, and regular/high FPS (having more pixels would give you more sampling opportunities...).
- gugagore 3y ago
  They use both.
- dmurray 3y ago
  In five years our budget-level Android phones will have both!
  - tecleandor 3y ago
    I'm not super convinced about that. The (raw) quality in the phones sensors hasn't climbed as quickly as on dedicated cameras this last years. The secret sauce for today's phone's cameras is a lot of processin, and if you get an unprocessed photo from a current day phone-size sensor is almost as bad as one from yeeears ago. And that's OK for regular photos, but I guess is not that good if you want to do image or signal processing and your data has already gone through some other processing and a "IA".
    - Kirby64 3y ago
      Raw sensor size in cell phones has massively increased compared to years ago, and improvements in sensor technology (BSI, for instance) has improved performance of sensors of similar size. These did not exist before. Obviously processing is getting more powerful, but I think you're discounting the improvements in the space. There's a few notable exceptions (e.g., Pixel phones used the same kinda crappy sensor for many generations), but largely people keep using the newer, better sensor on flagship devices.
  - usrusr 3y ago
    Reality check: what features do current budget-level Android phones have that weren't present on, say, a Galaxy S9 from 2018? I do assume that you were talking in jest, but overestimations of technological progress are to much a pet peeve of mine that I had to bite. What will technology look like 40 years in the future? No idea. 40 years in the past we built a pretty cool maglev train (TR 06, best looking version of them all)
    - programmer_dude 3y ago
      Then why was the train not put in service?
      - aziaziazi 3y ago
        Why would you expect the train was not put in service ? https://en.m.wikipedia.org/wiki/Transrapid https://en.m.wikipedia.org/wiki/Transrapid
        programmer_dude 3y ago
        From the same link... > The Emsland test facility was the only Transrapid track in Germany.[citation needed] It has been deactivated, and is scheduled to be disassembled.
        usrusr 3y ago
        GP was certainly referring to the Shanghai line, which feels much closer to put into service and to never put into service than one should reasonably consider possible at the same time.
        programmer_dude 3y ago
        I sure hope the Shanghai line is not using 40 year old technology.
        3y ago

http://people.csail.mit.edu/mrub/VisualMic/ http://people.csail.mit.edu/mrub/VisualMic/ uses the rolling shutter to get audio from regular-framerate video of a bag of chips.

tecleandor 3y ago

In that paper they use a "regular" high framerate camera. Those cameras are usually low resolution. I guess what could be more interesting or practical: Low-res very high FPS, or very high resolution, and regular/high FPS (having more pixels would give you more sampling opportunities...).

gugagore 3y ago
They use both.
dmurray 3y ago
In five years our budget-level Android phones will have both!
- tecleandor 3y ago
  I'm not super convinced about that. The (raw) quality in the phones sensors hasn't climbed as quickly as on dedicated cameras this last years. The secret sauce for today's phone's cameras is a lot of processin, and if you get an unprocessed photo from a current day phone-size sensor is almost as bad as one from yeeears ago. And that's OK for regular photos, but I guess is not that good if you want to do image or signal processing and your data has already gone through some other processing and a "IA".
  - Kirby64 3y ago
    Raw sensor size in cell phones has massively increased compared to years ago, and improvements in sensor technology (BSI, for instance) has improved performance of sensors of similar size. These did not exist before. Obviously processing is getting more powerful, but I think you're discounting the improvements in the space. There's a few notable exceptions (e.g., Pixel phones used the same kinda crappy sensor for many generations), but largely people keep using the newer, better sensor on flagship devices.
- usrusr 3y ago
  Reality check: what features do current budget-level Android phones have that weren't present on, say, a Galaxy S9 from 2018? I do assume that you were talking in jest, but overestimations of technological progress are to much a pet peeve of mine that I had to bite. What will technology look like 40 years in the future? No idea. 40 years in the past we built a pretty cool maglev train (TR 06, best looking version of them all)
  - programmer_dude 3y ago
    Then why was the train not put in service?
    - aziaziazi 3y ago
      Why would you expect the train was not put in service ? https://en.m.wikipedia.org/wiki/Transrapid https://en.m.wikipedia.org/wiki/Transrapid
      - programmer_dude 3y ago
        From the same link... > The Emsland test facility was the only Transrapid track in Germany.[citation needed] It has been deactivated, and is scheduled to be disassembled.
        usrusr 3y ago
        GP was certainly referring to the Shanghai line, which feels much closer to put into service and to never put into service than one should reasonably consider possible at the same time.
        programmer_dude 3y ago
        I sure hope the Shanghai line is not using 40 year old technology.
        3y ago