naturerecordists
[Top] [All Lists]

Re: HHB USB & Cool Edit Pro SE

Subject: Re: HHB USB & Cool Edit Pro SE
From: "richpeet" <>
Date: Tue, 23 Jul 2002 00:20:10 -0000
In a laptop you can find interupt conflicts between the usb port and 
the audio card as well as network cards or other pci cards.  Check to 
see that the usb interupt is not shared with any other devices. The 
fix is to shuffle or eliminate.  Shuffle is harder with a laptop than 
a desktop.
Good luck.



--- In  "sgrwp" <> wrote:
> Thanks for the info .. I should have included the 256 Meg of Ram - 
> maybe its just too small, although I note Roger's trouble free 
> transfers!  I checked that there's no incompatabilities and the USB 
> driver is doing what it's supposed to do ... maybe I'll just have 
to 
> try another USB cable?  Otherwise - if there's a program conflict - 
> any ideas where it's most likely to be?
> 
> --- In  Walter Knapp <> wrote:
> > sgrwp wrote:
> > > 
> > > Hi there
> > > 
> > > I have a problem with recording to my laptop from the HHB USB 
and 
> I
> > > was wondering if anyone could help.  I've checked the back 
files 
> of
> > > this group and while there appear to have been a few 
> USB "hiccups", I
> > > can't find one the same as this - I hope I'm not repeating old
> > > queries.
> > > 
> > > Anyway -
> > > 
> > > I've a Pentium 3 (996) laptop running Windows XP, with 20G 
space.
> > > I'm finding that when I record in Cool Pro SE through the USB 
I'm
> > > getting a sporadic interference with the recording.  It's an
> > > electronic distortion of sorts - that is still there when I 
burn 
> to
> > > CD.  It was very bad then I switched off the powersavers, the 
> screen
> > > savers and all the virus programs which seems to improve it 
alot 
> but
> > > I'm still picking it up occasionally.
> > > 
> > > The digital output on the HHB is off.
> > > 
> > > It's quite a long transfer - >74" but in mono.  It's only spoken
> > > word.
> > > 
> > > Anyone had the same problem - is it a USB problem or a Cool Edit
> > > problem?  I read in an earlier post that sometimes the USB 
> transfer
> > > is too fast for the processor - could this be the case?
> > > 
> > > The person in the IV coughs ocasionally which sends the 
recording
> > > into the red momentarily - could this be triggering the problem?
> > > 
> > > An even more bizarre sideline is that I have one USB cable that
> > > manages to get the audio into Cool Edit without howling and 
> another
> > > which causes howl on exactly the same settings - is there 
> something
> > > about USB cables I need to know?
> > > 
> > > Any help would be great.
> > 
> > How much memory does the laptop have? Your interference sounds 
like
> > something in the laptop is doing it. Hope it's not the disk 
> accesses.
> > Memory is a likely suspect. You are going to dig in and turn off 
> more processes.
> > 
> > The P3 should handle the USB just fine. USB does not have the 
> bandwidth
> > to make a processor notice, let alone sweat.
> > 
> > The coughing problem sounds like you may have recorded with a 
> little too
> > high a level, causing some clipping during the coughing. Unless 
> your bad
> > spots are always the coughing, that's not it.
> > 
> > Yes, USB cables come in various qualities and you do need to be 
> using a
> > good one. If you have a bunch of stuff connected to the USB, try
> > removing some of it. I've not heard of howling. My entire audio 
I/O 
> runs
> > through USB via a Roland UA-30 with no such problems.
> > 
> > I use macs, so can't be sure on Cool Edit, some PC folks will 
have 
> to
> > comment on that. I suspect it's a problem in how the USB is set 
up 
> in
> > your laptop, rather than Cool Edit. By the time Cool Edit gets it 
> it's
> > digital computer data and fairly immune to damage. And Cool Edit 
> should
> > have no problem buffering it to disk.
> > 
> > Though it should not make a difference, you could try it with the
> > digital out of the HHB on. That's supposed to only be turning on 
the
> > optical out, but I'm not sure.
> > 
> > Walt
> > 



________________________________________________________________________
________________________________________________________________________

<Prev in Thread] Current Thread [Next in Thread>
Admin

The University of NSW School of Computer and Engineering takes no responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the naturerecordists mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU