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The Daredevil Camera

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11–20 of 158 posts

Re: The Daredevil Camera

#11
Yay, a sound-field camera! I've been wondering if such things are made. Should I take the existence of this project as an indication that they aren't?

The use case I imagine is finding what part of a machine is emitting a noise, much like how you would use a thermal camera for finding what part of it is running hot.

Re: The Daredevil Camera

#12
post #10
post #4

Earlier quoted context omitted.

I wonder how many other cool-ass projects like this are going on that we have no idea about.

Lots.

It's a simultaneously awesome and saddening feeling. Awesome because you know that there are unexpected amazing things that are going to happen. Sad because a bunch of them might give up from lack of exposure, feedback, etc...

Re: The Daredevil Camera

#13

Yay, a sound-field camera! I've been wondering if such things are made. Should I take the existence of this project as an indication that they aren't? The use case I imagine is finding what part of a machine is emitting a noise, much like how you would use a thermal camera for finding what part of it is running hot.

That's a very sensible use case. I was thinking more like, super-trippy live music visuals.

Re: The Daredevil Camera

#15

Yay, a sound-field camera! I've been wondering if such things are made. Should I take the existence of this project as an indication that they aren't? The use case I imagine is finding what part of a machine is emitting a noise, much like how you would use a thermal camera for finding what part of it is running hot.

That's a very sensible use case. I was thinking more like, super-trippy live music visuals.

http://www.gizmag.com/seesv-s205-sound-camera-locates-noises...

Re: The Daredevil Camera

#17
post #14

This is the definition of what a 'hacker' is, great read.

Right on. Reminds me of Richard Feynman or Steve Wozniak, the way they just casually talk about taking things apart and putting things together while following a curiosity on an adventure. This is representative of the sort of ethos that drew everyone here in the first place, I think.

Re: The Daredevil Camera

#18

Yay, a sound-field camera! I've been wondering if such things are made. Should I take the existence of this project as an indication that they aren't? The use case I imagine is finding what part of a machine is emitting a noise, much like how you would use a thermal camera for finding what part of it is running hot.

Not exactly unheard of, but quite rare. I found a company that made large arrays like that, but they seem to operate in near field, measuring only the sound volume.

Imagine a wall of microphones next to a truck - you can tell which part of the wheel makes the sound. That sort of stuff.

As for an actual "camera" that turns sound into an image - i've never heard of one.

Re: The Daredevil Camera

#19

Yay, a sound-field camera! I've been wondering if such things are made. Should I take the existence of this project as an indication that they aren't? The use case I imagine is finding what part of a machine is emitting a noise, much like how you would use a thermal camera for finding what part of it is running hot.

http://visisonics.com/apps/#nsi

I'm unaffiliated, but saw one of their demos.

Re: The Daredevil Camera

#20
post #6

The timing issue between the microphones doesn't surprise me. Multi channel soundcards require a single ADC that processes all of the channels in unison (same for the DAC). This is also why you can't just plug four stereo cards into a PC and expect it to make an 8-channel system.

You can't? I'm sure I tried multi-channel via separate sound cards and it sounded fine to me. Maybe I was lucky with the timing, or the audio subsystem somehow accounted for it?
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