Re: [buildcheapeeg] Re: High resolution EEG schematic

From: Jim Peters (jim_at_uazu.net)
Date: 2002-03-07 09:34:27


sleeper75se wrote:
> Soundcards - a tricky subject. The CS8405A in the schematic is
> currently wired for professional audio and we don't want to risk
> having some cheap consumer product with an onboard DSP do highpass
> filtering on us, so either professional / semiprofessional board or a
> really cheap junk board probably works best.

Does this design require a soundcard with a S/PDIF optical input,
then? If that's what we're working with, then surely there is no
worry about high-pass filtering on the soundcard ? The only
manipulation of digital audio input data I've heard about is that some
cards always resample everything to 48kHz. Perhaps you know more
about this, though.

Jim

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