• 5 Posts
  • 33 Comments
Joined 1 year ago
cake
Cake day: August 3rd, 2023

help-circle










  • I would also guess the smaller range of hardware revisions is easier to keep track of when considering something as device specific as microphone frequency response curves or approximate intrinsic camera calibration values, thus simplifying the post-processing or data ingestion from an aggregate deployment of recording equipment.

    While Android devices are probably significantly cheaper, they’d vary quite a bit in terms of microphone, camera, and lens manufacturers, not to mention ADCs, gain to noise ratios and cheapest firmware, depending on what the OEM felt like swapping to for that minor product revision.

    Not sure how precise these researchers are trying to calibrate and rectify field measurements, but if they’re using internal phone sensors rather then external AV peripherals, then homogeneity across field computers would simply matters of data uniformity.














  • It feels like we’re finally, and thankfully, coming full circle. I remember buying my first digital camera in the early 2000s, specifically chosen because it was one of the many that included USB web camera functionality. Aside from downloading the photos on its internal storage, external storage was optional, you could also use the included software to serve as a webcam source.

    I can’t remember if it included a microphone, I’m thinking it didn’t. It also ran off on those small stubby film camera batteries, and not off USB power from the cable you connected it to, which was kind of dumb, and made it expensive to use as a webcam. The video quality must have been something around 140p, and any kind of conference call software was garbage back then as well. Yet the premise of a single device having multi-use features was such a no-brainer, given you already had have the PC USB integration to use it as a point and shoot digital camera.

    Modern smart phones have such excellent cameras, it felt really odd that you had to use a lot of hacky work arounds and reencoding over network streams to emulate the same functionality that some of the first affordable digital cameras on the market had decades prior. I spend some time looking into weather a custom Linux kernel could be used with Android to emulate the standard USB profile of a UVC camera device, but it’s really nice to hear that this kind of functionality is being pushed through Android mainstream development.

    https://github.com/tejado/android-usb-gadget

    Guess it only took a pandemic and Apple to showcase the same functionality to spur the core Android development into gear to match feature parity.