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

[Dave Emery]

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 02493