Re: HD webcam bitrate
Gregory Maxwell <[email protected]>
| Newsgroups | gmane.comp.multimedia.ogg.theora.general |
|---|---|
| Message-ID | <[email protected]> |
It's offtopic, but in the interest of correctness in case this thread show up in someone's search results. On Tue, Mar 8, 2011 at 4:48 PM, Leo Izen <[email protected]> wrote: > On Tue, Mar 8, 2011 at 11:19 AM, Jason Self <[email protected]> wrote: >> Tom Sparks <[email protected]> wrote .. >> > I am looking at getting a HD webcam, I am wondering what is the bitrate >> > of >> them? >> > Can they be used with a 12Mb/s USB ports? > USB 2.0 (which came out YEARS ago and is supported on anything more powerful > that a toaster) supports USB at 480 Megabytes a second. That is WAAAY more > that 12 Mbps. I even think USB 1.0 is faster than that. Low-speed usb 1.1 is 1.5 mega_bits_/sec, USB 1.1 ("Full bandwidth") is 12 mega_bits_/sec, and USB 2.0 ("Hi-Speed") is 480 mega_bits_/sec. This is ignoring various overheads, which are rather considerable.