thats actually really cool man. but something like this would merely interest techies, and the majority of android users will NOT appreciate an app like this. it's unfortunate, but thats just life. i would not be surprised if you would find some phones in the near future that has some basic dedicated sonar device built right into it. companies are starting to integrate "gimmicky" hardware tools into their devices (ex. accelerometer, compass, and gps all started out as extra gimmicks for the phone, and are now considered somewhat essential). could you imagine walking into a room as black as church shoes, and being able to see obstacles in your way.
but back to the topic, the not tech android users like phony apps. look at "screen crack" and "steamy window", both apps have a lot of hits, but they're not nearly as badass as a sonar!! On Oct 16, 7:24 am, blindfold <[email protected]> wrote: > Yes of course it is way too crude for any imaging, but rather than > gaming people, I would be interested in how far one could push this > towards true obstacle detection (say with the phone nicely and > steadily held in front of you). Then this is a lead. It all depends on > "the" objective. > > On Oct 16, 3:20 pm, lbcoder <[email protected]> wrote: > > > > > That is a little too crude for the objective. Best it can do is just > > detect a variation in the echo and use that to assume that there might > > be someone there. > > > A sonar object viewer would require a much higher resolution, which > > quite frankly, is WAY beyond the available hardware. In other words, > > it just isn't going to happen no matter how great the software is. > > > On Oct 16, 5:40 am, blindfold <[email protected]> wrote: > > > > Well, cf this PC version that may serve as an example for doing real > > > sonar work on Android, > > > >http://stevetarzia.com/sonar/ > > > > On Oct 13, 6:20 pm, mjrtom <[email protected]> wrote: > > > > > haha yes that is correct. echolocation. i knew that...erm.. > > > > > @blindfold, i was also thinking of a real sonar, which might be > > > > somewhat possible, but just too inaccurate and difficult to implement > > > > with the limited hardware available. > > > > > and then just to clarify, i am NOT a developer. haha i wish i could > > > > be. but im not. just thought i would throw an idea out there, and then > > > > if anybody want to pick up the ball and run with it...be my guest. im > > > > sure you would get many hits. > > > > > cheers > > > > > On Oct 13, 6:22 am, lbcoder <[email protected]> wrote: > > > > > > He isn't wanting to make real sonar since it can't be done with the > > > > > hardware available. He just wants to fake it (i.e. to TRICK i-phonies) > > > > > by emitting a high frequency noise (submarine ping) immediately before > > > > > capturing a PICTURE (using the camera) of whatever is there and then > > > > > performing some mathematical transformations on the image to make it > > > > > look hollywood-sonar-ish. > > > > > > That should make a great party-app. > > > > > > BTW: That would be ecHolocation. Ecolocation (aside from not being a > > > > > word at all) would have to have something to do with locating > > > > > ecological items, like forests, fish, and beavers. > > > > > > On Oct 13, 5:25 am, blindfold <[email protected]> wrote: > > > > > > > I suggest you first try to create a simple sonar obstacle detector > > > > > > (distance detector), because spatial (i.e. lateral) resolution with > > > > > > the phone's loudspeaker will be miserable (audible sound so high > > > > > > diffraction, and no built-in cone for better audio directionality). > > > > > > If > > > > > > successful, you move from there. Just doing the real-time analysis > > > > > > of > > > > > > streaming recorded sound for possible echoes and their delays is > > > > > > already tricky, ensuring that any variable delay artifacts are not > > > > > > larger than the distance variations that you hope to detect (3 ms = > > > > > > 1 > > > > > > meter at speed of sound, or 0.5 meter uncertainty if thinking of the > > > > > > return path). > > > > > > > Good luck! > > > > > > > The vOICe for Androidhttp://www.seeingwithsound.com/android.htm > > > > > > > On Oct 13, 10:38 am, mjrtom <[email protected]> wrote: > > > > > > > > so i know that you most probably need some expensive equipment in > > > > > > > order to make a sonar, or anything that would imitate > > > > > > > ecolocation. but > > > > > > > since we dont have that, and wont be getting it anytime soon, why > > > > > > > not > > > > > > > create an application that would fake sonar. > > > > > > > > basically have the phone emit sonar bleeps, or bat-like clicks, > > > > > > > and > > > > > > > then use the camera to record whatever is happening. but display > > > > > > > it > > > > > > > the way daredevil > > > > > > > sees.http://www.youtube.com/watch?v=EpOcO08dHvoat > > > > > > > 0:28. (i know it's a bad movie, but thats the only example i cant > > > > > > > think of right now). > > > > > > > > so when people want to show off their new app, they can say: > > > > > > > G1 DUDE: "look, my phone has sonar!" > > > > > > > *bleep (image shows up in black and white/green/blue, and then > > > > > > > fades > > > > > > > away)* *bleep (image shows up in black and white/green/blue, and > > > > > > > then > > > > > > > fades away)* > > > > > > > G1 DUDE'S FRIENDS: "whoa man you are so rad, i want to be just > > > > > > > like > > > > > > > you." --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Discuss" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-discuss?hl=en -~----------~----~----~----~------~----~------~--~---
