Looper volume control - How to do it... and a request for some help too!

    Hey guys, I've noticed a lot of guys have asked to be able to control the looper volume of the Kemper. Well, I figured out how to do it, but I lack the skills to implement it myself.


    If you are able to send a sysex or NRPN command to Address Page 127 (MSB) of the Kemper and then to parameter 52 (LSB), you can control the looper volume after sending the appropriate MSB and LSB for parameter volume.


    I believe if you can transmit NRPN with an expression pedal, you should be able to control the looper volume like a regular volume pedal as well!


    Now here's where I need help. If I want to write the NRPN command to do this, how would I structure it? This stuff goes over my head!

    A lot depends on what controller you are using and how it gets programmed. I'm using a Liquid Foot and have it set to send 4 midi commands with each button push. I have 4 buttons programmed. 0db, -3db, -6db, and -12db


    Command one is CC 99 value 127
    Command 2 is CC 98 value 52
    Command 3 is CC 6 value 127
    Command 4 is CC 38 value 127


    This will set the loop volume at 0db or maximum level


    All commands stay the same except for CC 6. Change that value and you can adjust the volume down.
    Value of 98 gets you to around -2.9db
    Value of 65 gets you to -6db
    Value of 31 gets you to -12db


    I haven't figured out a way to use an expression pedal to flow through NRPN values like a volume pedal. Not sure if it's possible to do.


    Sean


    That is fantastic, man! I wasn't too sure it could be done through CC#, but it makes a lot of sense that you can do it, just like the looper.


    I'll try and programme using this logic and share the results. It should be possible, just need to sweep through the CC6 value while maintaining all other CCs at the same value.


    Thank you so much for this!

    Success! It is possible to control the looper volume with an expression pedal. A quick video demonstration:


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    An interesting thing to note is that even at minimum volume, the looper is not dead silent, there is still some sound output, the same as if you reduce the looper volume on the Kemper.


    Still, this really is an easy way to use the looper in a practice situation with various profiles rather than having to adjust the volume by hand.