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BBC studio clocks

 
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John W



Joined: 07 Dec 2006
Posts: 3360
Location: Warwickshire, UK

PostPosted: Thu Aug 09, 2012 9:24 pm    Post subject: BBC studio clocks Reply with quote

Here's a BBC studio clock



The distinctive thing about these clocks is the red second hand, I guess not unusual to see such a thing anywhere else today.

I was re-reading part of the autobiography of Henry Hall (director of the BBC Dance Orchestra 1932-1937) and he says in early 1934 they moved to a new Maida Vale studio for his evening broadcasts, the studio was specifically designed for broadcasting dance orchestras and at Henry's request a clock with a red second hand was installed to help ensure their split-second timing during the broadcast. Since then, apparently, ALL new BBC studios have had such a clock installed!
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ColinB
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PostPosted: Fri Aug 10, 2012 3:04 pm    Post subject: Reply with quote

They do - and they're all synchronised to a timing pulse from the atomic clock at Greenwich. When you think about it, all the clocks in the BBC's network have to be perfectly synched to facilitate accurate switching, etc.
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SantaFefan



Joined: 07 Dec 2006
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Location: top of the cliffs in Norfolk

PostPosted: Fri Aug 10, 2012 8:18 pm    Post subject: Reply with quote

so which are right.. the FM pips or the DAB pips?? Laughing
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ColinB
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PostPosted: Fri Aug 10, 2012 9:23 pm    Post subject: Reply with quote

SantaFefan wrote:
so which are right.. the FM pips or the DAB pips?? Laughing


The FM ones - because the signal is analogue and passed along the chain in real time. They're not subject to digital cacheing which is part of the process of digital streaming. It's a bit like turning on a tap in order to get a flow - but the water supply has to fill up a bucket first before being allowed to flow out as a steady, constistent stream. When you don't have this you often get symptoms such as buffering, where your device has to wait for the cache to refill. In DAB terms the buffering can be a couple of seconds, and online it can be much more.

I timed the delay between BBC's News Channel's output when shown on TV (via Freesat) and online via my iPad. I think the delay was 13 seconds!

This will change in time (although I'm not sure how).
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SantaFefan



Joined: 07 Dec 2006
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Location: top of the cliffs in Norfolk

PostPosted: Sat Aug 11, 2012 8:41 am    Post subject: Reply with quote

It's a good job we didn't have a "Digiltal" speaking clock to telephone..
"At the third, or sixteenth stroke, it will be Eleven O'clock - precisely!" Laughing

Come to think of it... did the speaking clock lady say " Eleven O'clock precisely" or "Eleven O'clock AM pecisely"?? I think it was without the AM/PM bit... even time was simple in the old days...
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ColinB
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PostPosted: Sat Aug 11, 2012 9:13 am    Post subject: Reply with quote

No, it was "The time is now precisely 11 o'clock....... more or less".

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