no-...@no-place.org wrote:
small packets. A calibration run would consist of an initial NTP
syncronization with an audio packet, followed by a period of some
What you are describing here isn't, I think, the use of NTP, but the use
of SNTP. You seem to be making a measurement, form the
no-...@no-place.org no-...@no-place.org wrote:
Now I am considering an alternate means of performing this calibration
using NTP. The iPhone and Android devices deliver audio to my app in
small packets. A calibration run would consist of an initial NTP
syncronization with an audio packet,
Rob nom...@example.com wrote:
I think the average internet connection from a device like an iPhone
has so much jitter that this approach will not work reasonably well.
(try to ping to an internet server and see what kind of jitter you
have, it usually is terrible over UMTS, WiFi etc)
iPhones
Ralph Aichinger ra...@pangea.at wrote:
Rob nom...@example.com wrote:
I think the average internet connection from a device like an iPhone
has so much jitter that this approach will not work reasonably well.
(try to ping to an internet server and see what kind of jitter you
have, it usually is
Maarten Wiltink maar...@kittensandcats.net wrote:
Which is exactly why hardcoding pool.ntp.org _is_ allowable, in my
opinion - and in fact indicated in such a case as this.
In my opinion, it's not.
Please read http://www.pool.ntp.org/en/vendors.html .
--
Maurice
unruh un...@invalid.ca wrote in message
news:tiLMs.55319$on7.49...@newsfe16.iad...
On 2013-01-26, no-...@no-place.org no-...@no-place.org wrote:
[...] I obviously don't want to hard-code for a specific time server
because things could change after the user gets my app and it is
unfair to send
Steve,
I see from the web page that Autogen is maintained by Bruce Korb.
Bruce is well aware of the current issues in building NTP with
MSVC++2008/2010EE, so patients is the key word here I guess.
Thanks for the information.
Regards,
Ed
On 2013-01-25, Mischanko, Edward T
I know of no way for NTP to know about the new file without restarting NTP
itself. The drift file will allow it to come back into sync very quickly,
so the consequences of a restart should be minimal. NTP reads the leapseconds
file on start-up, I believe.
Regards,
Ed
I'm using my
In article 51033f49.215309...@news.eternal-september.org,
no-...@no-place.org wrote:
I am an app developer who has a precision audio frequency app for
iPhone and Android devices. For my app the nominal crystal oscillator
accuracy in these devices is not sufficient. Up until now I have been
On 2013-01-26, David Woolley david@ex.djwhome.demon.invalid wrote:
no-...@no-place.org wrote:
small packets. A calibration run would consist of an initial NTP
syncronization with an audio packet, followed by a period of some
What you are describing here isn't, I think, the use of NTP, but
Folks,
I've tried to follow this in the code, but it's beyond me, I'm afraid!
Given:
1 - the modified serialpps.sys device driver is installed
2 - the support DLL is present
3 - the environment variable points to the support DLL
is it necessary to add the ATOM driver to the ntp.conf file?
unruh wrote:
On 2013-01-26, David Woolley david@ex.djwhome.demon.invalid wrote:
You may well find that you don't have to measure the sound generator
frequency because it may use the same crystal as the main clock.
Unfortunately ntpd does NOT change the crystal. It changes the way that
In article n7sdnfngn4pywp7mnz2dnuvz_smdn...@megapath.net,
Hal Murray hal-use...@ip-64-139-1-69.sjc.megapath.net wrote:
I suggest submitting a feature request at
https://support.ntp.org/bugs/index.cgi
with a link back to the above bug since it will be the same area of code.
Too many hoops to
2013/1/27, Garrett Wollman woll...@bimajority.org:
In article
CABrG=ZyT9ttE4Mea3yauWPru0euQ8TV4m7KHm0bHSwiYa=+b...@mail.gmail.com,
Michael Tatarinov kuk...@gmail.com wrote:
I know only one way.
ntpq -c 'config: leapfile LEAPFILE
That was what I was looking for! In my version of ntpq, at
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