Bias FX for iPad auto engage wah pedal

  • Hello, after a lot of investigation, i am able to use the wah pedal with auto engage on ipad.
    I am using a 3rd party software (midifire) and it is available for Mac OS, also. So, this might be useful for anyone using Mac or Ios.
    Here is video i created
    Bias FX for iPad auto engage wah pedal

  • Hi,
    That's a very helpful tool - thanks for sharing.
    I copied the script into a Stream Byter device in MIDIFire and it installs correctly.
    Could you explain the script a little to help with customizing it to different setups?

  • Hello.
    The script code provided by the midifire developers.
    In general as i understand it triggers the expression pedal and sends a specific CC code to switch on the wah, if it gets higher. I set that value to 5, but this can be different for someone else.
    I believe a lower value will be very sensitive, this needs to be set by everyone individually depending on their expression pedal.

    here is the link from the forum i discussed about this if you want to get more info
    Midifire forum biasfx

  • Also, i added a channel strip, because in the first place the wah was working but i couldn't enable/disable the rest assigned pedals.

  • Thanks,

    In the meantime I found that forum and your original post.
    I created a triple Stream Byter device in MidiFire that enables 'auto engage' type messages for all three continuous controller pedals in my rig. It originally didn't work because I tried to enter decimal instead of hex values - doh! But all working perfectly now - at least on iOS. I haven't purchased the macOS version yet but probably will sooner or later. Nic from Audeonic was super helpful.

    BTW, I didn't need the channel strip in my setup - it works fine without it.

    Thanks again for pointing out the direction for this useful hack.

  • Nice, i am glad that this solution helped you.
    I needed the channel strip because the other pedals couldn't react to CC messages. So, in this way i changed the midi channel to different one on biasfx, as my pedalboard is et on channel 1. And the issue was that, because both were listening on ch1.
    Are you using different channel on your devices?

    I was also enter decimal values and later on i found out it is using hex.
    Can you share the triple configuration and how you use it.


  • Sure, I'll make an explanation video and upload it to YouTube in the next couple of days.

  • Such a useful hack! One little add-on and you suddenly made Bias FX 1000% more usable! Kudos!! Now all I need is to make a script in Midifire to put minimum and maximum limits on my volume pedal! If anyone is fluent in Midifire's scripting code... There's a need for a midi "compression" script.

  • @guitarkite I believe you can get more help on midifire forum for the compression script. Ask there, they are very helpful.

  • Got it running great! As a bonus, I was able to take the MIDI out from my iPad and can control my PC version just as well!

  • @guitarkite Great, i read your other post here, also.
    Can you explain in more detail on you are using your blueboard with ipad to control Bias on pc? if i understand correctly.