{"items": [{"author": "Danner", "source_link": "https://www.facebook.com/jefftk/posts/658789792852?comment_id=658789892652", "anchor": "fb-658789892652", "service": "fb", "text": "So like Russian dash cams for wearables.", "timestamp": "1399640713"}, {"author": "Ken", "source_link": "https://plus.google.com/104541722876199850443", "anchor": "gp-1399641814147", "service": "gp", "text": "Some devices, such as the Elgato Game Capture HD or Xbox One, already function this way. \u00a0Though neither is a mobile, battery-powered device, being able to record something after it's happened is demonstrably useful.", "timestamp": 1399641814}, {"author": "David", "source_link": "https://www.facebook.com/jefftk/posts/658789792852?comment_id=658794573272", "anchor": "fb-658794573272", "service": "fb", "text": "Actually, I thought Glass had this capability; I'm probably either mistaken, or they cancelled it given their privacy concerns already.", "timestamp": "1399644617"}, {"author": "Michael", "source_link": "https://www.facebook.com/jefftk/posts/658789792852?comment_id=658799378642", "anchor": "fb-658799378642", "service": "fb", "text": "My new digital audio recorder has a mode that engages a buffer so that effectively it starts recording 2 seconds before I hit record. Sadly, when I forget to hit record, I really need more like 10 minutes of buffer to be useful.", "timestamp": "1399646915"}, {"author": "Jeff Kaufman", "source_link": "https://www.facebook.com/jefftk/posts/658789792852?comment_id=658801269852", "anchor": "fb-658801269852", "service": "fb", "text": "@David: I don't think battery tech is there yet for glass to have this feature. I do see some people concerned about the privacy implications of an always-recording glass, but they all note that the current version can't do this and is only capable of about half an hour of recording video.", "timestamp": "1399647678"}, {"author": "Jeff Kaufman", "source_link": "https://www.facebook.com/jefftk/posts/658789792852?comment_id=658801928532", "anchor": "fb-658801928532", "service": "fb", "text": "@Michael: that's weird; I wouldn't think the length of the buffer would be an expensive constraint for the manufacturer. At 44k and 32 bits per sample, 10s is about 1.5MB.", "timestamp": "1399648149"}, {"author": "Jim", "source_link": "https://www.facebook.com/jefftk/posts/658789792852?comment_id=658806085202", "anchor": "fb-658806085202", "service": "fb", "text": "No, Glass does not have this capability. This wouldn't actually influence the battery very much, if it worked by taking pictures at sufficiently spaced out intervals; it's video recording that kills it, mostly because of high CPU usage.
However, at the rate Glass is gaining features, it will gain this capability in minus two years or so. Did you know that Glass used to be able to pair with bluetooth keyboards, used to be able to make video calls, used to be compatible with most regular Android apps, and used to last whole hours without a kernel panic and reboot? I just wish it had ever had the ability to disable the auto-updater, because then it might've been able to keep these features.", "timestamp": "1399650541"}, {"author": "Jeff Kaufman", "source_link": "https://www.facebook.com/jefftk/posts/658789792852?comment_id=658814109122", "anchor": "fb-658814109122", "service": "fb", "text": "I wonder if you could reduce CPU usage enough by saving raw camera output (giant) in some dedicated circular buffer and encoding only on request?", "timestamp": "1399654957"}, {"author": "Chris", "source_link": "https://www.facebook.com/jefftk/posts/658789792852?comment_id=658814702932", "anchor": "fb-658814702932", "service": "fb", "text": "Michael: I have the same issue with my Zoom H2.
Jeff: I don't think the issue is that making the buffer longer would be a hard constraint, just that the whole point of the feature is to only start recording when you hear the music start. If it had a ten minute buffer, that would be the same as just turning on the recorder when you first turn on buffer mode (which is a mode it has.)", "timestamp": "1399655374"}, {"author": "Chris", "source_link": "https://www.facebook.com/jefftk/posts/658789792852?comment_id=658814832672", "anchor": "fb-658814832672", "service": "fb", "text": "Jeff: I believe the looxcie had the buffer feature, but it seems that they are getting out of the consumer market. Not sure what's up with that.", "timestamp": "1399655490"}, {"author": "Kelly", "source_link": "https://www.facebook.com/jefftk/posts/658789792852?comment_id=658818789742", "anchor": "fb-658818789742", "service": "fb", "text": "this would be the killer app, so to speak. I would buy one at that point.", "timestamp": "1399658183"}, {"author": "Doug", "source_link": "https://www.facebook.com/jefftk/posts/658789792852?comment_id=658866748632", "anchor": "fb-658866748632", "service": "fb", "text": "The premise of The Final Cut. An excellent movie where everything you've ever seen is recorded. https://www.youtube.com/watch?v=EM5MzCAZ3OY", "timestamp": "1399690183"}, {"author": "Will", "source_link": "https://www.facebook.com/jefftk/posts/658789792852?comment_id=658903050882", "anchor": "fb-658903050882", "service": "fb", "text": "I swear I saw an advert for this product several years ago ... wearable, incredibly clunky and awkward-looking, but could buffer something like ten minutes of images, automatically rewriting them unless you hit stop, at which point you could download the stored images of the past ten minutes. Something like that. Way pre-Glass, and it was a one-function device.", "timestamp": "1399733095"}, {"author": "S.", "source_link": "https://plus.google.com/113757148057552366706", "anchor": "gp-1399944442880", "service": "gp", "text": "This exists, a guest lecturer gave us a talk about it in my first year cs grad seminar sometime in 2012-3.", "timestamp": 1399944442}]}