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Old 01-25-2013, 08:55 PM
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Join Date: Mar 2009
Location: Philadelphia
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Quote:
Originally Posted by spdrun View Post
No USB dongle needed, really.

Audio ports can record at 44kHz. If you're reading +12V signals, you can build a circuit to convert them to the +/- 0.5V or so that the audio port needs.

You then use some software to view the traces:
Zelscope: Sound card oscilloscope and spectrum analyzer

Good call, never really thought of that. I imagine there will still need to be something to read such sensitive waves? Mic ports (especially on laptops) are tuned to the human voice spectrum and won't be much good beyond that.
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