Hello Dana The prototype system I built used an E1 digital telephony card with 30 lines. I think it cost about $12000/year to lease the associated 2 megabits per second data capacity but we didn't do that; we just commandeered a few lines from our site's capacity. I believe the live system needed several hundred lines to deal with peak demand, usually at DST transitions.
Cheers Michael On Tue, Oct 1, 2019 at 6:00 PM Dana Whitlow <k8yumdoo...@gmail.com> wrote: > > What kind of telephone service would one request for a talking clock, that > permits a > large number of users to be listening in at once? I suspect that this > would be the real > difficulty and would incur considerable monthly expense. > > Dana > > > On Mon, Sep 30, 2019 at 9:08 PM jimlux <jim...@earthlink.net> wrote: > > > On 9/30/19 3:00 PM, Neville Michie wrote: > > > Here in Australia we are suffering the loss > > > of one of the significant developments in accurate time keeping and > > dissemination. > > > The talking clock, built in England, with sound tracks on rotating glass > > disks, > > > has been on the Australian telephone system for more than half a century. > > > The system was timed by quartz oscillators, synchronised to the local > > observatory time. > > > Now in spite of the trivial cost of maintaining the system it has been > > removed by > > > the money-hungry telco which took over the government run telephone > > system. > > > Now it occurs to me that the sound tracks occupy a very small digital > > space, and > > > with modern flash drives and a little logic the talking clock could be > > driven by > > > any time nut's disciplined time source. > > > So is there a time nut who could design a voice output that we could all > > use? > > > > > > “At the third stroke the time will be…” > > > > > > > > > > > using Bash on my mac: > > > > $ date +"The time is now, %H, %M, %S, coordinated universal time" | say > > -v Karen > > > > I think that one could do a bit of scripting and have it have your > > preferred wording, and synchronized to the top of the second. > > > > I leave it as an exercise for the reader to do it in French: > > $ say -v Amelie "Le Temps Universel Coordonné" > > > > > > _______________________________________________ > > time-nuts mailing list -- time-nuts@lists.febo.com > > To unsubscribe, go to > > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > > and follow the instructions there. > > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.