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Re: [irlp-embedded] Re: Enabling the repeater controller

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  • David Cameron - IRLP
    The audio mixer is described in the document. The level of feedback between the INPUT and OUTPUT (repeat audio) is controlled with the LINE slider. This is how
    Message 1 of 4 , Aug 26 9:16 AM
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      The audio mixer is described in the document.

      The level of feedback between the INPUT and OUTPUT (repeat audio) is
      controlled with the LINE slider. This is how the mute works... sets the
      line slider to zero.

      The level into the IRLP is controlled using the LINE1 slider.
      The level out of the IRLP is controller using the PCM slider. This also
      adjusts the CW tone, so be careful.

      The Recording device must be set to LINE for IRLP to work.

      The CWtone level is controlled using the program which calls the ID. Most
      likely is you are using the controller, it is in a script called

      /home/irlp/features/controller/id_script

      The contents are as follows:

      echo $CALLSIGN | cwpcm -sf -l 30 -p 1000 > /dev/dsp

      This plays the callsign stored in the IRLP environment file, at a fast
      rate, at a level of 30%, and a pitch of 1000 Hz.

      Feel free to change this to what you want.

      For example

      echo "hi de ve7ltd" | cwpcm -sm -l 20 -p 500

      Would play the ID "hi de ve7ltd" at 20% volume, medium rate, and 500Hz.
      The tags are shown in the script.

      -ss slow rate
      -sm medium rate
      -sf fast rate
      -sx extra fast rate

      -l 0-100 sets level
      -p 0-3000 sets frequency

      So it is a balance of LINE for repeat audio, PCM for IRLP transmitted
      audio, LINE1 for IRLP input audio, and Vol for overall audio.

      Dave Cameron
      VE7LTD


      On Sat, 26 Aug 2006, Tim
      Sawyer wrote:

      > Thanks Dave, got it going and it works well. How is the audio mixed and adjusted? Are
      > there separate inputs to the mixer for rx audio, cw tone, and IRLP levels?
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