[time-nuts] Audio format with embedded timestamps?
hmurray at megapathdsl.net
Fri Dec 2 16:02:05 EST 2016
tshoppa at gmail.com said:
> I have some long (24 hour) WAV files and will see if I can come to any
> determination about the offset and spread of the sampling rate. e.g. if the
> sampling rate nominally 44100, how precise is that in my PC's hardware? I
> would bet this is tied to a crystal in the audio section of the sound card
> and thus completely independent of any ntpd stabilatization being done to
> the system clock.
It's important/interesting if you are a geek.
I think the IRIG refclock driver for ntpd used to tell you the actual speed
of your audio clock. Overall, it worked well enough that the clock speed was
significant and was corrected for.
These are my opinions. I hate spam.
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