Your Questions About Analog
Jenny asks…
What is the difference between analog and digital information?
I already understand how digital systems use discontinuous values (like how binary systems are based on variables that allow only two possible conditions: 0 or 1), and how analog systems use continuous values like an arbitrary range of voltage inputs. I’m just trying to understand it more clearly using examples from daily life. For example, why is an analog clock “analog” and why is a digital clock “digital”? How are you supposed to know what variables to look at when catagorising something as analog or digital? Thanks.
Think I get it… So a digital clock is digital because the time increment changes in whole discrete steps, whereas for an analog clock the angle of the clock hands vary at a continuous rate instead of in steps?
Jill answers:
Digital is discreet, analog is variable
Lisa asks…
What is the difference between an Analog and a Digital Tuner?
I am buying a TV tuner for my Laptop computer and I found two different kinds; analog and digital. What is the difference? I know that analog is the older one, but does it effect the channels I get? What changes if I get digital compare to if I get an analog tuner?
Thank you.
Jill answers:
Without knowing the brand and model of the two tuners you speak of, I am only guessing here, but analog TV signals are the kind that are transmitted through the air in the VHF and UHF frequency bands, and are transmitted over old-type cable. Digital TV signals are the kind that are transmitted over satellite TV, broadband cable, or digital cable. You would need the analog tuner to go from an older VCR or DVD player’s video outputs, and a digital tuner if you wanted to plug it into your DirecTV or digital cable hookup, or use it in place of TiVo.
Most digital TV signals have to be converted to analog anyway, and the analog tuner can get anything that’s going to channel 3, so it will be able to read in just about anything. A digital tuner will be much less useful, so I would get the analog (unless you need to get some new digital HDTV signal into your PC or something).
Helen asks…
How do I transfer analog video to digital?
I have an older video camera (Canon es1000) that recorded in analog on hi-8 tapes. I probably have close to 100 tapes and would like to store their contents on DVDs, in the hope of someday editing them. What’s the best way to transfer the analog onto DVD? (I have a good computer and a DVD burner.) Thank you.
Jill answers:
Get a capture device such as those made by Pinnacle and Dazzle. You can get a pretty good one for under $50. Plug it into your computer using a USB or firewire cable, and plug your camera into the device using the yellow, white, and red composite cables. Using the software that comes with the device, or other editing software if you have it, you can capture the tapes. Most of the software has some sort of easy function to burn to a DVD. Some will even burn as you capture.
Nancy asks…
How do I get analog sticks to work on motionjoy on a 64 bit operating system on a pc?
I dowloaded the drivers and only the buttons on the controller work where the two analog sticks do not. I went into properties of the controller and it won’t recognize the analog sticks.
Jill answers:
First be sure you have the 3rd option selected (analog triggers, NO motion sensor), then use the Profile Editor.
Up and Down on the right stick should be mapped as Z Rotation axis (Rz decrease and increase, respectively). If they aren’t already. Don’t know why they wouldn’t be.
Map L2 to Dial axis increase
Map R2 to Slider axis increase
Click Enable and save if you like
Now, here is the important part. If you just stop here, L2 and R2 will probably not be functioning correctly. You need to calibrate the controller.
Go to your Windows control panel and open up your Game Controllers configuration applet. If you are using Win7 and there is no link to this, click the start button and type in Set Up and it should find a shortcut to it (Set up USB game controllers).
Your MotionInJoy device should be listed. Select it and click Properties. In the next window click the Settings tab and calibrate. Simply follow the instructions given. After you’ve done this your L2 and R2 buttons (and analog sticks if you were having trouble with those as well) should work properly.
Now, if only Vibration would work correctly instead of just causing my entire system to spaz out until I close the game…
Daniel asks…
Can I combine analog cable and digital antenna feeds together?
My current HDTV has two RF inputs: one for “off-the-air” antenna and the other for cable. Both inputs support either digital or analog signal and the TV has both ATSC and NTSC tuners. I’d like to upgrade to a new HDTV, but have to address the fact that, while it has both a digital and an analog tuner, it has only one RF input. I know I could hook up an A/B switch to manually choose between my rooftop antenna for HDTV and my analog cable feed, but that would be a hassle.
What would happen if I combined the two RF inputs into a common cable — a reverse splitter if you will — and fed it into the single RF? Would the TV be able to “uncombine” the signal and see both the OTA digital and analog cable signals separately?
Thanks.
Routing the antenna through the VCR would mean using the VCR internal tuner and it can’t receive off-the-air DTV.
@sotires
@link
Thanks for your replies. You’re right about the option of connecting the _analog_ via the VCR. I found a new TV that has both air and cable RF inputs, so hopefully the problem will be avoided.
Jill answers:
I think combining the two sources would lead to grief. OTA hdtv uses exactly the same frequencies as analog TV. Analog cable just sends these channels down the coax, but it also uses some intermediate and higher frequencies that the OTA TV bands skip These frequencies are used by other apps over-the-air, but that’s not a problem, since the signals can’t leak out of the coax.
I think you may have misread the suggestion of using the VCR. He said to hook up the ANALOG signal to that, not the hdtv antenna signal.
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