CompuServe Thread

#Spigot AV

5 messages in this thread
#3341From: Douglas DuganMar 1, 1995 5:14 AM
I have an Mac 840 AV and I was considering a Spigot Power AV. I shoot primarily on Hi8 and edit with an editcontroller to super VHS. Does anyone know if the output from this will match or approximate what I'm getting now?
#3377From: Paul VendrickMar 2, 1995 7:23 AM
<<I was considering a Spigot Power AV. I shoot primarily on Hi8 and edit with an editcontroller to super VHS. Does anyone know if the output from this will match or approximate what I'm getting now?>> Yes. It won't. The SpigotPower AV does not output 24bit color. There is a product that Radius has announced for March general availability called the SpigotPro AV (or the SpigotPower AV Producer — depending on which Radius dept you talk to). It will be about $1,799 retail, and will use the 840AV's video input jacks but will have output circuits of it's own. It will deliver 24bit color. It also has hardware zooming to pixel double say 320X240 up to convolved full frame in real time. (Ugly stuff <– my opinion). Although the board is touted at 60field, 640X480, the board's maximum throughput is 2.2meg/sec (73K per frame at full motion). Even with M-JPEG miracles only God can work =in this price range=, your Hi-8 and S-VHS equipment should easily exceed the quality this board can produce (my opinion is based on my experience with other JPEG equipment using these data rates). So it will be your weakest link. But you might squeek by using it for titles, animations, keys and DVE work to compliment your rig. To make effective use of the SP PRO, you will need a disk drive with a *sustained* throughput of at least 2.2 meg/sec (disk throughput needs to exceed board's data rate). Many tests have shown sustained rates to be a skosh over half the maximum rate. However, I have one drive rated at 5m/s which 'tests' at 3.7m/s sustained, so mileage may vary.
#3479From: Douglas DuganMar 5, 1995 9:26 PM
Thank you so much for your input. The drive that I would use as storage for digital information would be the one gig that came with my 840 AV. How can I find out what the throughput is for a drive? Douglas Dugan
#3489From: Paul VendrickMar 6, 1995 9:48 AM
<<How can I find out what the throughput is for a drive?>> Aside from the written specifications <which you probably don't have — I don't think any came with my 840AV>, you will need a utility. I'm not sure what comes with the Spigot AV these days. My non-linear gear includes such a utility that will inidicate the true sustained throughput of any drive connected (a diagnostic you *must* know to set compression correctly). I know the higher end Video Vision from Radius has such a utility too. Probably the quickest way to find out is to pop to MACBVEN forum and post a message to Radius in Section 14. One tiny piece of advice, tho. Buy the non-linear system first. Be patient. See how you need to refit your 840 to work with your choice. This saved me thousands of dollars by realizing that these finicky boards and software work very well with a rather narrow set of outboard equipment (for example, my board set doesn't work with any monitor that doesn't sync on green — hence a new Apple monitor won't function).
#3546From: Douglas DuganMar 7, 1995 9:46 PM
Thanks again for your help. I'll check out my drive as you say and see if I can't get some demos before I buy.