Is there a mini camera that can record audio and visual for 24 hours? How about just one device for audio and one for visual? If they don't exist, what camera can record audio and visual for the longest amount of time, and for how long? I'm a complete amateur at technology, so I've no idea where to search for them.|||First, there is no battery that can run for 24 hours straight, so you need something with external power.
Recording time is a function of the quality and bit rate of recording.
Also, do you want to record the camera's internal storage or do you plan to record on an external PC/Hard drive? To give you an idea of recording time. Say you record at 0.5 Mbits/s (for comparison, DVDs are at about 6 Mbits/s).
At 0.5 Mbits/s, 1 hr recording requires about 225 Mbytes of storage. So with one 1 GB flash card one can record about 4.4 hrs.
|||A security camera connected to a surveillance recording system can record for a LONG time.
Swann, Clover and many others make consumer-grade security digital video recorders (4, 8, 9, 16 channel) to which you can connect a security camera. The size of the hard disc drive in the security DVR, the video quality you select and the number of cameras connected to the DVR dictate how much recording time is available - days, weeks or even months of storage.
Fry's Electronics has a good selection of security DVRs, wired and wireless security cameras, analog and network based cameras... go to their web site, under "Electronic Components", select "Security", then "Closed Circuit Television", then check out recorders, wired and wireless cameras... Some security cameras do audio, too.|||Virtually all digital cameras can record for 24 hours straight IF IF IF ( it's a VERY BIG IF) you have enough storage space. A 14 second video 640x480 in AVI format from my little camera is 14MB, or about a second of video per Megabyte (1MB). 24 hours is 86,400 seconds, so for 24 hours would require at least 86 Gigabytes (86GB). While most camera media is not that big yet, some video cameras have bigger iPod-like internal disks in them. Or you can plug some cameras into a computer and store the video directly to a bigger hard drive.|||most digtal camwera can do that. See your camera carefully, you can find the way
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