[time-nuts] Accuracy of a sound card
boyscout at gmail.com
Mon Aug 22 17:29:28 EDT 2005
On 8/22/05, Tom Van Baak <tvb at leapsecond.com> wrote:
> I measured the phase, frequency and Allan deviation of
> the sound card on my cheap PC. You'll enjoy the results:
> If any of you with a high-end sound card want to repeat
> the experiment let me know.
All common soundcards have an oscillator that is either a multiple of
48 kHz or of 44.1 kHz. They fake it for other sample rates. It would
be interesting to see if the same experiment with a 48 kHz sample rate
produced different results.
More information about the time-nuts