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Need to create audio delay of ~3 seconds.

Discussion in 'AV Receivers & Amplifiers' started by aclopezjr, Jan 16, 2005.

  1. aclopezjr

    aclopezjr
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    Hi,

    I have an HDTV and often times I like to listen to a radio broadcast of an event on television. The radio broadcast is about 3 seconds ahead of the TV broadcast so I need to create a delay on the audio. I have found a stand alone box that will do this called Delay Play Radio http://delayplayradio.com however I would like to see if there is a receiver that will do this on its own.

    There are some receivers out there to help with lip syncing but those typically do not have a long enough delay.

    Any suggestions? Thanks.

    Aaron
     
  2. Zacabeb

    Zacabeb
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    I think that type of device would be the best solution, since I don't think there is any receiver that has more than a few hundred milliseconds delay. You may want to see if there are less expensive devices of that kind though, since I doubt a few seconds delay need cost that much.

    I guess the best way of connecting it if you have a receiver with a rec out selector is via a "tape" or "VCR" input/output that can be controlled with that. Then you just need to set the rec output to tuner, and the input that to which your audio delay is hooked up. If you don't have a rec out selector on your receiver, then I guess it will be a bit trickier to get it working.
     
  3. eviljohn2

    eviljohn2
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    www.felston.com

    Produce an audio delay box but it's quite expensive and only has a single coaxial digital input.
     
  4. aclopezjr

    aclopezjr
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    thanks eviljohn, but this has a max delay of 340ms. it is quite expensive! :)
     
  5. Zacabeb

    Zacabeb
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    In addition, the tuner of a receiver may not output a digital signal, unless there is a dedicated ADC in the receiver for sending analog inputs to the digital outputs. That's probably a bit unusual too.
     
  6. eviljohn2

    eviljohn2
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    I understand that it's expensive and not what you're after, but I'm a little confused by this comment.

    340ms is well in excess of the 3 second delay you specified? :confused:
     
  7. aclopezjr

    aclopezjr
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    340ms = 0.34 seconds :)
     
  8. Zacabeb

    Zacabeb
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    A millisecond is a one thousand of a second, so 3 seconds is actually a whopping 3,000ms, and 340ms only 0.34 of one second.
     
  9. eviljohn2

    eviljohn2
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    Ah yes, of course I know that!

    They don't make physicists like they used to. :blush:
     
  10. aclopezjr

    aclopezjr
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    thanks for your input, zacabeb...i will probably end up with the delay play radio...i've been searching for a while for another solution to no avail.
     
  11. aclopezjr

    aclopezjr
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    it's ok, we electrical engineers have been known to make the same mistake ;)
     

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