Re: [irlp-embedded] Re: Enabling the repeater controller
- 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
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.
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.
On Sat, 26 Aug 2006, Tim
> 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?