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RE: [Discuss-gnuradio] Source of annoying problem found

From: Whisenhunt Steve-QA2855
Subject: RE: [Discuss-gnuradio] Source of annoying problem found
Date: Wed, 7 Jan 2004 10:51:07 -0600

I've also been considering the Audigy 2 card as a 
short-term solution for narrow-band experimentation. 
Does anyone else use this card with GnuRadio, or 
know if a suitable driver exists for Red-Hat Linux?
Steve W.

-----Original Message-----
From: address@hidden
n Behalf Of Dave Emery
Sent: Tuesday, January 06, 2004 9:26 PM
To: Ian Wraith
Cc: address@hidden
Subject: Re: [Discuss-gnuradio] Source of annoying problem found

On Tue, Jan 06, 2004 at 08:34:11AM +0000, Ian Wraith wrote:

>  I should be OK Nyquist wise since I am sampling what is basically a
> 18 KHz waveform at 44.1 KHz. I had noticed my waveform amplitude was
> varying before but in my last test this suddenly became much worse. I
> now realise this was caused by me changing motherboards between these
> tests. I suspect this new motherboard has a 11 KHz low pass filter
> where as the old motherboard (another Asus but with a different sound IC)
> had a low pass filter set at a much higher frequency.

        Is there some reason why you could not consider using an
external PCI card like the Creative Audigy II which truly and genuinely
samples at 96 khz ?   Bought OEM without all the Windoze cruft they are
around $73 in the US....

        Hard to see an obvious reason for sticking just with the
motherboard sound chips...

   Dave Emery N1PRE,  address@hidden  DIE Consulting, Weston, Mass

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