[ntp:questions] Audible signal generator ("BBC pips")?

unruh unruh at invalid.ca
Sun Nov 18 17:53:08 UTC 2012

On 2012-11-18, Ralph Aichinger <ralph at pangea.at> wrote:
> As the Raspberry Pi I am currently using as a NTP box has 
> an audio output available, I am wondering if this otherwise
> unused output (on a dedicated NTP box) could be used to
> generate BBC style pips or other audible time signals?
> http://en.wikipedia.org/wiki/Greenwich_Time_Signal
> As I am probably not the first one to have that idea:
> Is there software for Linux that does this? Playing 
> a sound file is easy. Playing it in sync with ntpd 
> is a lot harder.

ntpd is for syncing your computer clock to UTC. Since your computer
clock is now runnning at UTC, all you need is to have a program that
reads your computer time and at the seconds rollover issue a sound.
> /ralph

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