[sdiy] freeware using PC and soundcard as oscilloscope and spectrum analyzer

[Jay Schwichtenberg]

Probably not.  Here you're talking about some sort of instrument used for
other things. At this point you aren't using the $3 codecs (includes
ADC/DAC) they use for your typical sound card, higher end ones will use
separate ADC/DAC. Also most audio converters have some sort of digital
filter and analog filter, typically around 40 kHz. ADC/DACs used in
acquisition cards are usually have either 8 or 10 bits, some stuff is
getting up into the 12 and 16 bit realm. These converters are the type they
use in digital scopes and test equipment and are very expensive.

Could you elaborate on what the problems are with the sound card/software
combinations that you've tried?
Last time I looked Sound Blasters only really worked at 48 kHz and did some
sort of conversion for the other sample rates. Could that be a problem for
your tests?

Jay S.
  -----Original Message-----
  From: owner-synth-diy at dropmix.xs4all.nl
[mailto:owner-synth-diy at dropmix.xs4all.nl]On Behalf Of Arun Bohm
  Sent: Monday, January 17, 2005 10:48 PM
  To: synthesizer Doityourself
  Subject: Re: [sdiy] freeware using PC and soundcard as oscilloscope and
spectrum analyzer


  Ave',
  Can anyone get a "soundcard" with higher frequency capabillities than
audible. That is, is there a way to get a computer to be a high performance
scope given the right kind of hardware?
  ab.bohm


----------------------------------------------------------------------------
--
  Do you Yahoo!?
  Meet the all-new My Yahoo!  Try it today!
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://synth-diy.org/pipermail/synth-diy/attachments/20050118/7de4dbb1/attachment.htm>