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Gear / Technical Help => Recording Gear => Topic started by: Nick in Edinboro on June 02, 2003, 08:46:01 AM

Title: JB3 HD/Power questions..
Post by: Nick in Edinboro on June 02, 2003, 08:46:01 AM
Curious to see what size JB3 you've found to be useful.  I'm curious about running it at a festival and exactly what I could fit on it when running the 20 gig version.  

I'm guestimating about 1GB/per hr, is that about right?

Trying to not run out of space half way through a festival, have an estimated 6 sets of moe. (60's and 90's) and an assortment of other acts I'd like to get down (Peter Prince, Flaming Lips, Om Trio, Lynch, Marlow, etc...).    Could end up being more then 19-20 hours perhaps.  Estimating about 15 but who knows..

Quote
Could you transfer from a JB3 to another JB3?  Or even better a cheaper JB2 or JB1..?  Sort of a storage deck left back at the car... I won't have a laptop at the show.

Answered my own question.. no way to do it digitally it seems...

Nother question.  Seems as if external power has been nothing but trouble... anyone have success?  If not are you using both battery slots in the JB3?  Know of a place to pick them up on the cheap side?

TIA,
Nick
Title: Re:JB3 HD/Power questions..
Post by: wrangler_n_space on June 02, 2003, 11:56:13 AM
I got my extra battery on ebay for like 30$ i think.

I have over twenty hours on my 20gig jb3 and was under the assumption it would hold around 40 :D more. I might have just made up the 60 hours thing in my head but i swear i read/heard it somewhere.
Title: Re:JB3 HD/Power questions..
Post by: Brian Skalinder on June 02, 2003, 01:13:19 PM
Check the Archival Information section, Bri listed some useful info there:

http://www.taperssection.com/yabbse/index.php?board=14;action=display;threadid=199 (http://www.taperssection.com/yabbse/index.php?board=14;action=display;threadid=199)
Title: Re:JB3 HD/Power questions..
Post by: Nick in Edinboro on June 02, 2003, 01:25:39 PM
Am I reading this wrong?

Bit-Depth      Sample Rate (in kHz)      MB Per Track-Minute
16                  44.1                                5

So how do you do the math?  5 * x number of minutes yields the y number of megs?  Doesn't seem to gel well with me as according to that 700/5 = 140 minutes on a 700 meg disc (if you look past the audio vs. data problem).  Most discs I see run about 600 megs and are usually about 65-70 minutes in length.  That leads me to believe that it's a little more then 5 megs a minute, something closer to 10 megs.

But my math could definately be wrong, despite the fact I have a minor in applied mathmatics I am most definately a retard when it comes to numbers..
Title: Re:JB3 HD/Power questions..
Post by: Brian Skalinder on June 02, 2003, 01:44:58 PM
But my math could definately be wrong, despite the fact I have a minor in applied mathmatics I am most definately a retard when it comes to numbers..

Your math is correct, but we generally record two tracks.  So...

Bit-Depth      Sample Rate (in kHz)      MB Per Track-Minute
16                  44.1                                5

So, for our two-track purposes we're really talking 10MB / min.  Re-crunch the numbers taking this into account and the numbers should gel.

It flubbed me up the first time I crunched the numbers, too.
Title: Re:JB3 HD/Power questions..
Post by: Nick in Edinboro on June 02, 2003, 01:49:57 PM
Bwahaha.. not the first time I was fooled by math...  

*shakes fist*  damn you math and your evil, evil numbers!
Title: Re:JB3 HD/Power questions..
Post by: Lee on June 04, 2003, 12:25:30 AM
Quote
Could you transfer from a JB3 to another JB3?  Or even better a cheaper JB2 or JB1..?  Sort of a storage deck left back at the car... I won't have a laptop at the show.

Answered my own question.. no way to do it digitally it seems...

Actually, the latest JB3 firmware supports firewire TXfers between JB3's... I was going to try it with Clayton after the mmw/moe. show back on 5/1, but I had to jet early.

Either way, creative says it will work, but I don't know anyone who's tried it.



I've posted extensively regarding the external power issue.  Bottom line:
external power =  >:(

-Lee
Title: Re:JB3 HD/Power questions..
Post by: zhianosatch on June 04, 2003, 02:59:12 AM
*shakes fist*  damn you math and your evil, evil numbers!

That damn number 2. Lousy number two. MY personal archnemesis...
Title: Re:JB3 HD/Power questions..
Post by: F.O.Bean on June 04, 2003, 03:50:23 AM
thats actually one thing i excelled in in school was physics, and all sorts of phucked up math..... ;)

bean

p.s.- but i am rusty as a nail...... 8)