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Gear / Technical Help => Post-Processing, Computer / Streaming / Internet Devices & Related Activity => Topic started by: ChitownTaper on July 20, 2004, 11:15:20 AM

Title: Anyone here use a USBpre1.5?
Post by: ChitownTaper on July 20, 2004, 11:15:20 AM
Okay,

I don't understand why I'm having such issues with this thing.  I've managed to figure out all my other problems with this, but now i've got a new one.  It seems like no matter what my input when I'm recording to the powerbook through the USBpre I get static every 3 or 4 minutes (randomly, not at specific times).  It's on the origional MK012>USBpre>Peak4LE, it's on the DAT backup when I convert it through my SPDIF in D7>USBpre (SPDIF in)>Peak, and when I did it on the MD backup I ran MD>USBpre (tape in)>Peak.  I know it looks like peak is the common part, but it does the same thing in spark.  All I can figure is it's either the Powerbook or the USBpre.

Any Insights?

Thanks!
Cal
Title: Re: Anyone here use a USBpre1.5?
Post by: sygdwm on July 20, 2004, 01:23:22 PM
i cant help you really. i have one and have never had a single problem w/ it like you described. could be a cable issue?

d
Title: Re: Anyone here use a USBpre1.5?
Post by: ChitownTaper on July 20, 2004, 01:26:39 PM
I thought it might be a cable issue as well, but then realized if it was I wouldn't have the problem using the 7pin>coax as well as the 1/8>RCA.

What setup do you run?

thanks
cal
Title: Re: Anyone here use a USBpre1.5?
Post by: sygdwm on July 20, 2004, 02:42:44 PM
481>usbpre>vaio
Title: Re: Anyone here use a USBpre1.5?
Post by: RRobar on July 20, 2004, 03:26:24 PM
If all of your deck, powerbook and MD have the same issues. I'd say it's related to the USBpre. Maybe a issue with one of the cables or one of the mics (if it shows in one channel). Just a few thoughts.
Title: Re: Anyone here use a USBpre1.5?
Post by: ChitownTaper on July 20, 2004, 03:39:58 PM
Here's what I ran...

AT853>SP Batt Box>MD
MK012>USBpre>Powerbook
USBpre Headphone Out>D7 line in
SBD>DA-20 MKII

The DATs and MD are all clean until I convert them trough the USBpre (SPDIF in and Tape in respectively), the AIFF file on the powerbook had the static problems.  And any AIFFs of the stuff I converted through the USBpre has the static problem.

I figure it either needs to be an internal USBpre problem, a USB cable problem (i'm gonna try swapping them out), or a problem with a setting in the powerbook.  I've gone through everything Sound Devices had me do to get clean recordings in the powerbook, so I figure it must be with the Pre Itself.  I'm gonna try running it again on Sunday at a show, so I'm gonna do a bunch of tests before then.  Just didn't know if anyone else had these problems.
Title: Re: Anyone here use a USBpre1.5?
Post by: BC on July 21, 2004, 12:35:49 PM
Are there any power management settings that you can disable? I run mine with a sony picturebook, I got lots of crap when recording until I went to settings>power management>power management off.

You might need to play with your buffer size too?

Good luck,
Ben


Title: Re: Anyone here use a USBpre1.5?
Post by: C.Clark on July 21, 2004, 02:55:52 PM
did you try increasing the recording buffer size in spark or peak, this seems
to be a common problem with alot of external audio cards.  try
messing around with those settings, and if you still have problems, a call
to sound devices might be in order.  or if you can try the usbpre on a friends
computer, and see if the same things happen
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