Re: Converting voltages to PCM audio (programming related)
- From: vessep@xxxxxxxxx
- Date: 29 Nov 2005 10:23:08 -0800
Mark wrote:
> are there time stamps or some other data in the words that come out of
> the data aq card along with the signal?
Hi Mark,
No, not that I know of. I have not found any evidence on such matter
from the DA-cards manual.
> what is the sampling rate?
44100Hz. I have tried also with 88200Hz and 100kHz. When using higher
sampling rate, the noise is not that bad, but still exists. Or at least
that's what it sounds like, I have no fancy equipment nor software to
analyze it very precisely. The noise is so loud that it can be verified
aurally. Also, the amount and quality of the noise differs when using
different players, e.g. my mobile phone makes a lot more noise than my
iPod, and the noise in the mobile phone is quite different from iPod's.
BR,
vesse
.
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