[wdmaudiodev] Re: Sample Rate Converters

  • From: Andrew Elder <aelder@xxxxxxxxxxxxxxxx>
  • To: wdmaudiodev@xxxxxxxxxxxxx
  • Date: Thu, 04 Sep 2008 15:07:54 -0400


Some test results.

Playing a 1 kHz sinewave through a 48 kHz AES/EBU output I get:

XP SP2
48 kHz -96 dB THD+N
44.1 kHz -85 dB THD+N
32 kHz -85 dB THD+N

Vista
48 kHz -133 dB THD+N
44.1 kHz -133 dB THD+N
32 kHz -133 dB THD+N

so, Vista is much better than XP in this regard.

On the record side, recording from a 48 kHz input I see

XP SP2
48 kHz -97 dB THD+N
44.1 kHz -86 dB THD+N
32 kHz -84 dB THD+N

Vista
Kept getting record format errors. Couldn't get the recorder to work correctly.

- Andrew

All measurements made using a dScope Series III and ASI5044 audio adapter.
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