Positive Grid BT-4 Bluetooth MIDI Pedal Delay
I've been looking for a good looper for my iPad and Loopy is the best I've tried. My only issue is hands-free operation. I recently purchased a Positive Grid BT-4 Bluetooth MIDI pedal to use with BiasFX as well as Loopy. I can bind the BT-4 buttons to Loopy with no problems, but I was hoping to use the pedal to start recording without a count-in. I find there is too much lag between pressing the switch and when the recording starts to make this practical. I tested the same function with a bluetooth Apple keyboard and there doesn't seem to be a similar lag. I haven't testes a wired MIDI controller as yet since my CCK seems to have stopped working. Has anyone else run into this issue and if so were you able to fix it? I can use count-in if I have to but would prefer not to if possible.
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I finally got my CCK to work (at least for a few minutes) and using a KORG NanoPad plugged into the iPad also has a noticeable delay when triggering a recording. I have a pad bound to start track recording without count in or out. I have an iPad air2 running iOS 10.3.2.
After much head scratching and reading of other posts, I believe I have solved my problem. When binding either the BT-4 or the KORG, Loopy seems to default to CC hold. This works, but introduces a significant delay (I suppose to see if the control is really held). If I change the binding to CC on the delay is very short. I also needed to bind CC off to the same action since the BT-4 sends on for the first press and off for the second. Hope this helps someone else with the same issue.
Thanks for the update, @stschoen! Some pedals operate in latch mode: first press & release is on, the next press & release is off (rather than momentary mode, press on, release off each time), which means that Loopy just sees a press and hold the first time you press and release. I've not found a good way to deal with these devices, as momentary seems to be the more common, and I want to keep the 'hold' functionality. So, yep, the solution is as you say to map the on and off states as two triggers for the same action.
It's nice to have the option to choose. CC hold works fine if you don't mind a slight delay. I would rather have as much flexibility as possible.
Hello Stschoen, I was wondering how's this setup been working out for you?
Would you recommend getting a BT-4 to use as a controler for Loopy HD?
I have the app for a few years now but ended up never really using it because I got discouraged with the fact that I had to buy an audio interface and a midi controller to use it with my guitar... but now I've decided to look back in to it.