Hi Again:
The ATI Card has what is know as… A system compatibility check… It looks for all the nessessary versions of applications and hardware specs that the Graphics card requires to capture video to a drive…
If these conditions are not met then a screen appears saying that limited quality files can be expected when useing the card for a capture device… At times, the S/B audio card I have in this machine does not meet ATI’s requirements… But I checked just now… and all was O.K. The Sound Card’s Clock Stability must be better than +/- 0.2% to be acceptable for ATI’s requirments…
This S/B Audio card sometimes falls outside this tollerence, at times… So, IF IT’s drifting in-and-out of tollerence then I believe that “Dropped Video Frames” may be happening with this set-up…
I do know that I don’t have a “Stellar” VHS Cassette tape of the project, I am working with right now… But, IT’s all I have to work with…
I already have the Cassette tape coppied to a DVD, so there may be a generation loss happening already… Mabey, what I’ll do is, start all over again and copy the Tape directly to the capture process and see if that improves the A/V “Clock” frequency Lock-up…
Still, working away… on all this… 
Bill…
[EDIT]
I forgot… That video editor that you posted looks like the Bee’s Knee’s… I should have that… My VISA Card could very well be takeing a “Big HIT”… How am I gonna get that “Drumulator”… And those 19" Flat Panel Monitors? and…
I’m looking at this link… this link…
Could there be any preferences as to the quality of the “Clocks” and behaviour of this stuf for video capture?
Does the price of this stuff directly relate to how this stuff works? and What about the computer it operates, with… Remember, I have this P-111 1.2mhz intel machine… Limited ram and all… But If I start out with this stuff can I use it in another machine somewhere down-the-road?
What’s you “Take” on all this?
Bill…
Hey Bill,
I have found that if it does what it says it does, then that’s half the battle won. As far as dropping frames is concerned, I have found that it is best to use a capture program with very low CPU usage so that the capture will not interfere with the “writing to disk”. Once all the video is in your computer, you can do what you want with it. The WinDV capture software I pointed out earlier works very well at capturing video/audio without dropping frames.
As far as forward compatibility, there are external hardward solutions for converting analog video into digital video that hook up to your USB2 or firewire input. You might want to look in that direction to be sure it will work for future iterations of your video computer.
| Quote (woxnerw @ April 20 2006,09:47) |
| I already have the Cassette tape coppied to a DVD, so there may be a generation loss happening already.. Mabey, what I'll do is, start all over again and copy the Tape directly to the capture process and see if that improves the A/V "Clock" frequency Lock-up.. Still, working away.. on all this.. Bill.. |
How would you do this? Is there an interface to get these two things- audio and video from separate sources- to get captured in a synchronized fashion?
Have I got your scenario right?
| Quote (Sloom @ April 20 2006,11:37) | ||
How would you do this? Is there an interface to get these two things- audio and video from separate sources- to get captured in a synchronized fashion? Have I got your scenario right? |
First to Bills quote. Once you have the file in a digital format, there is no loss. If you have rendered the file in a "lossey" format like mpeg 2, then there will be a loss from the original format (like avi to mpeg2). But once it is in mpeg2, there is no addition loss unless you recompress it again through the rendering process...
Sloom,
you asked,
Is there an interface to get these two things- audio and video from separate sources- to get captured in a synchronized fashion?
The only way I know to "sync" audio and video from "separate" sources is to do so in an editing program. How else would software "know" to sync up two completely different files?
I often record events with 2 video cameras and occasionally a separate "high quality" audio feed. I open all of the above in an editing program and examine the wave files. I look for precise sounds (clap, cough... etc) in all three and "sync" them up visually almost down to the sample level. Once this is done, I can lock all the files up together and edit as I wish without worrying about anything getting out of sync.
Does that answer your question??
Hi Guys:
I may be a little quick on the response with my reply, regarding getting the Cassette “Captuered” to a DVD… The VHS machine I played IT (the Tape) on may have been some of the problems with the sync. Lock issues.
I’m gonna do IT all over again but with the original machine that the cassette was recordered, on. Remember, this recording was made on a 10 year old machine, then and this is 10 years later… So, now the machine is 20 + years old and the cassette has been laying around for 10 years, as well…
The songs are posted on my page… You’ll find them as Water Under the Bridge and Window Shoppin… The audio was “Ripped” from the VHS Tape to get the songs in .wma format…
Why I’m doing this is… Half of this stage is not with us anymore. They died of cancer… The front guy struggeled with IT for several years before he was diagnosed with IT and then IT was two years before he “Called IT IN”… The other guy was diagnosed with IT and was gone with-in seven months…
These guys liked nothing better than to entertain their audience with their style of music… They did IT all their lives…
Bill…
| Quote (woxnerw @ April 20 2006,15:41) |
| Why I’m doing this is… Half of this stage is not with us anymore. They died of cancer… The front guy struggeled with IT for several years before he was diagnosed with IT and then IT was two years before he “Called IT IN”… The other guy was diagnosed with IT and was gone with-in seven months… These guys liked nothing better than to entertain their audience with their style of music… They did IT all their lives… Bill… |
Well I can relate to that, Bill. A drummer I met by chance up here who became like a brother to me died of cancer four years ago. This is, in fact, why I’m here!
We played for 9 or so years together, and have a lot of miles of cassette tape laying around, which I’m dealing with. He was starting up a cool co-op idea, and wanted me to take it on with his passing.
Money+responsibilities equals time (my “equals” key doesn’t work)… I wasn’t very helpful to it at the time I’m afraid, which was a shame. But anyway, here we are, doing something worthy, we hope.
Hey Doc, yes, functionally it does answer the question. That’s what I’m prepared to do, pretty much, so I’m on-target so far! Thanks for the helpful info.
Yes:
When I play the DVD through the “Capture” process I hear the audio and see the video and ALL looks and sounds just fine…
When I try to record-and-capture the file onto a drive, I see the video but no Audio is apparent…
To get around this I just plug the Video into the ATI Card… The S-Vid. IN… and the Audio into the Input of the sound card and just… “Record-and-Capture”… The Audio appears and the video is ALL O.K. and All, is just fine and In-Sync…
I don’t know much beyond that point… However, when I do a Properties on the Recorded file on the DVD… IT’s something like 1.42 gigs. … in 12 files… That’s on the DVD that I captuered, some time ago… on my DVD Recorder…
One song is 280+ megs. and the other song is 238+ megs.
I believe they are AVI extensions…
To post those files with my modem and tele-wire would take me a couple of weeks, that’s even if I had the “Space” somewhere to post them…
I know this ain’t gonna happen… But, if I could put them into a 10 meg. file I’d be quite happy… The songs run on the average of 3-4 minutes, in length… You know, how much can you say in a song… longer than this?
Bill…
I believe that ATI AIW cards allow you to pick the type of file that you are capturing to. For instance you can save your capture as an .avi or .mpg etc… AVIs are compressionless by themselves and are your best bet for best looking video, but they are also huge in size. If you have the hard drive space, that is the only way to go.
BY the way, if you use WinDV for capturing your video from any source, you will not hear audio until you play it back on your computer. I believe that the programmer did that to have less of a chance of dropped frames during capture.
Hi DrGuitar:
You’re right on… The Card’s Utility has ability to allow the user to pick the file extension at “Capture time”… I played with this feature but I don’t know much about the various file sizes. I did a … what I call a hi quality res, file and found that the repro. quality was quite acceptable… in relative terms… However, the lower quality extensions look less-than-stellar… And, that’s expected… There is where the “Clock Jitter” comes into play… that I observed. I think that the conversion from a hi-res. file might be O.K. if’n I had a converter to compress the stored file… That is… if that’s the process to get a reduced file that would be acceptable to post… Mabey there is another approach to reaching this file and size… Could there be another way to do this?
Bill…