Interruptible foldback

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Interruptible foldback (IFB), also known as interrupted foldback, interruptible feedback, or interrupt for broadcast, is a monitoring and

director or assistant director to on-air talent or a remote location.[1][2][3][4][5][6][7][8][9][10] The names are backronyms for the Telex IFB-XXX model line.[11] Less common names for the system include program cue interrupt (PCI) and switched talkback.[12][13] IFB is often facilitated using an earpiece that on-air persons wear to get cues, feedback or direction from their control rooms
. The earpiece itself may also be referred to as an IFB. Sometimes IFB is accomplished by the director talking to off-camera personnel who visually cue the on-camera talent.

The IFB is a special

script on the teleprompter or cue cards. In live television, some news anchors are seen listening to IFBs in order to report breaking news
and announcements.

In

return link in a broadcast auxiliary service. The physics and design of electronics cause time delays
in signals as they travel through wire, fiber optics, or space and when they are converted back and forth from physical sound, electronic signals, radio waves, and from analogue to digital. The latter process and other audio processing can introduce unacceptable delays or echos into the sound. To achieve the mix-minus program to the IFB, certain audio elements that originate remotely from the mix point will be eliminated from the mix that is sent back to the IFB at the remote site to avoid those undesirable effects.

Wired or wireless in-ear monitors (IEMs) may be used to carry the IFB audio to the on-air talent.[citation needed]

References

  1. ^ "IFB". Pro Audio Reference. AES. Retrieved 2017-12-17.
  2. ISBN 1-58115-388-0
    .
  3. ISBN 978-0-240-80751-5
    .
  4. ISBN 1-895579-08-2
    .
  5. ISBN 0-295-98498-8
    .
  6. ISBN 978-0-495-89884-9
    .
  7. ISBN 0-7864-2206-8
    .
  8. ISBN 0-07-004788-X
    .
  9. ISBN 978-0-240-80797-3
    .
  10. ISBN 0-240-51525-0
    .
  11. ^ http://www.telex.com/us/wireless/product/IFB-325/1437
  12. ISBN 0-07-138246-1
    .
  13. ISBN 978-0-240-80873-4
    .
  14. ISBN 978-0-240-51973-9
    .


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