# Relay-For (Command Center Only)

TuneTracker Command Center™ is capable of relaying the content of MP3 audio coming from an outside source; either the Internet, or somewhere on your intranet if it uses TCP/IP protocol. The source can be either a live, continuous MP3 stream or a static, fixed-length MP3 file, located anywhere on your local network or the World Wide Web.*


REBROADCASTING A STREAM FROM ANOTHER STATION

The continuous streaming capabilities in TuneTracker's "# Relay-For" feature might be of particular interest to intranet and educational broadcasters running multiple streams of audio, as well as for hobbyists and other special applications. There may be situations where it's desirous for one radio station to should pick up and relay the programming coming from another streaming radio station during certain portions of the programming day.


RELAYING A FILE LOCATED ELSEWHERE

The relaying of fixed-length, static MP3 files gives stations the ability to access and play MP3 files from other locations without having to download them first; a feature that will save some stations a lot of time and effort! The file is actually played off the web site or other location as it is being retrieved by TuneTracker/SoundPlay.

Since the file is located remotely, and TuneTracker can't "learn" on its own how long it is, so you must know in advance how long the file is. A file that is of a different length each time you access it can't be gracefully relayed. Files of varying lengths must be downloaded and played instead. That makes Relay-For most-useful as a way to play remotely-located files such as commercials, PSAs, newscasts, or fixed-length reports of other kinds, where you know exactly how long they are.

As you will see in the examples, Relay-For requires that you give it a length, expressed in hours, minutes, and seconds, and the IP address of the stream or file to be relayed.

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# Relay-For

•   Examples:
  
  # Relay-For 00:10:00 http://123.456.789.101:123456 Name of the Stream
  
  # Relay-For 00:10:00.3 http://123.456.789.101:123456 Name of the Stream
  
  # Relay-For 00:10:00.38 http://123.456.789.101:123456 Name of the Stream
  
  # Relay-For 00:10:00.387 http://123.456.789.101:123456 Name of the Stream
  
  # Relay-For 99:00:00 http://123.456.789.101:123456 Name of the Stream
  
  # Relay-For -2 99:00:00 http://123.456.789.101:123456 Name of the Stream
  
  

In the first four examples above, the streaming signal will be broadcast for 10 minutes, 10 minutes and 3/10 seconds, 10 minutes and 38/100ths seconds, and 10 minutes and 387/1000ths seconds. So you can be accurate down the the millisecond, if you want to. In the fourth example, the signal will be broadcast indefinitely. In that example, an "# interrupt" would be required to interrupt it at a time you desire. The final example shows the same event with a volume reduction of -2 (about 20%.) Whatever you give at the end, as the name of the stream, is what will be displayed in Command Center when the event is played.

•   Examples:
  
  # Relay-For 00:015:02 http://www.someurl.com/TechWeekly.mp3
  
  # Relay-For 00:00:32 http://www.someurl.com/DeltaWeather.mp3
  
  # Relay-For +4 00:05:00 http://www.someurl.com/DeltaWeather.mp3
  
  

In the first example above, the file being accessed is a 15 minute weekly program provided on a web site. The extra two seconds you see are to allow time for retrieval and buffering of the cut. You may need to adjust the amount of extra time up or down, after experimentation.   In the second example, a 30-second weather forecast is being retrieved, again with two extra seconds added for retrieval and buffering. The final example shows the addition of a volume boost of about 40%.

Relay-For events can also be assigned to configurable buttons, for manual access. This can be extremely useful! With configurable buttons assigned to Relay-For's, you can:

1. Play a web-based audio file, on-demand
2. Join a remote web stream, on-demand
3. In tandem with TT Anywhere, go to a remote site, set up an audio stream, log into your TuneTracker computer, and put yourself on the air from anywhere!
   

* If the signal is lost, there have been rare occasions where TuneTracker has had difficulty recovering and has sat silent, so be we recommend you are present during testing of this feature to assure your Internet or other network connection is solid and steady before letting it run unattended.

* Permission should be obtained from the radio station you are relaying, and bear in mind that you are still responsible for any licensing fees if relaying copyrighted music from another radio station.



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