Re: RUSS Automated tone

[Cooper Fox <fox893@yahoo.com>]

When I was working at WREM in Monticello Maine back in
the late 90s we used an old reel-to-reel/cart
automation system that used low freq tones.  Certain
songs with mucho bass(Primus' "My Name is Mudd" for
one) would set off the next event.  I would
occasionally tap that AM/FM button on my car stereo
and be greeted by more than one event being played at
once.



--- Roger Kirk <rogerkirk@ttlc.net> wrote:
> >Russ Butler wrote:
> >>What is the inaudible tone that is used to cue 
> >>events in an automated radio station's
> >>programming computer?  And how is that signal 
> >>generated onto a CD program so that the radio 
> >>station can download the digital audio
> >>successfully with the cues to activate 
> >>commercials, promos, ID's, jingles, etc.?  
> >>Do all radio station's automated systems accept 
> >>the same tone cue, and where could I obtain the 
> >>equipment (or this service) in the Boston area?  
> 
> "Aaron [Bishop] Read" replied
> >IIRC it's a 25kHz tone for one full second, but 
> >others on the list will  probably know for sure...
> 
> Cue tones can vary.  Radio Programming Management
> (RPM) uses "UltraSoniQ" - a 20KHz tone of varying
> length.  Leading edge is cue to start next source,
> trailing edge signals complete end of audio.  At
> least that's what I've been told.  IIRC they provide
> a circuit board for modifying a CD player to detect
> the tone and output appropriate logic signals.
> 
> Roger Kirk


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