MOTU i24

  • Thread starter Thread starter jgourd
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jgourd

jgourd

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I am looking into getting a multitrack card such as the i24 from MOTU. It has IASO drivers so I am going to guess it works with N track.

I will want to record 16 tracks at the same time in a live situation. Will a P4 with IDE 100 drives handle it? How much disc space will a 2 hour show use up?
 
Technically the answers to your questions should all be yes. But PC recording is an interesting game and it's hard to say how reliable your setup will be for recording long 16 track sessions like that.

What are you going to record at, 24/96, 24/48? Here's how you figure out the disk space you'll need:

(bit depth / 8) * sample rate = bytes per second

That's per track. So if you're going to do 24/96 recording....16 tracks for 2 hours....

(24/8) * 96,000 = 288KB per second

288Kb/sec * 60 = 17280KB per minute

17280 * 60 = 1,036,800KB per hour

1036800Kb = 1,036.8 MB per hour

1036.8MB * 16tracks = 16,588.8MB per hour

16,588.8MB/hr * 2 hours = 33,177.6MB

So, you're looking at 33.177 Gigabytes for an entire 2 hour show. That's not so much these days, but it's nothing to scoff at. I would recommend at least a 60GB 7200RPM drive or a couple smaller (or large) drives in a RAID0 configuration. Also, you cut this number in half by recording at 24/48.

Like I said though, it's hard to know how stable things will be. I've never setup n-Track and left it to record for 2 hours solid...especially not at 16 tracks! I've sat and let it record a stereo track for about an hour once and it did so without a hitch....but that's not in the same ballpark.

Are you going to mix on the PC or do you have outboard gear? If you have outboard gear, then consider a standalone hard drive recorder in this particular situation. It will be much more reliable. If you're going to mix on the PC though, it *should* work....but *should* is meaningless :)

Slackmaster 2000
 
i think one deciding factor is your choice of processor. you state P4 however the P4 isnt just another iteration of the coppermine. Its a whole new core, the itanium. This will bring new instructions and new ways to design software. I guarantee you that none of the current software is designed using the P4 architecture in mind. First things to go P4 will be servers, then you will see home users following. I think a high powered P3 will still be more supported for the next 1+ years and in that time the P4s will be at around 3.5Ghz, hertz dont mean too much these days, but still. you can save a pretty penny on a P3 base and get better performance i bet. ask the ntrack people, they will probably agree.
 
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