Frank and the group.
Until recently, the sound card has been thought of as a secondary accessory. By that I mean it plays the windows warning sound, or an mp3 or wav file and allows one to listen to sound effects when playing computer games.....
Only recently has anyone though of using it for serious work, although there are a few exceptions.
Even on todays best sound cards, there is no shielding despite having 16 bit sensitivity on the inputs and being mounted inside a big noise generator, esp[ecially bad for magnetic interference.
Nothing surprises me when it comes to sound cards, they use dimestore time bases and are far from what they could/should be.
However, they're cheap and plentiful and give us a taste of what we can do when better sound cards become more common place.
Regards,
Art
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The soundcard is one of the most vulnerable spots for letting in
spurious signals.
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