06-16-2021, 10:39 PM
Hi Mike,
Thanks again - but no solution, just more symptoms. I tried your suggestions without success, then decided to do a systematic test of the options.
I pulled out the USB cable and reinserted it and got a message something like “Midi device Line 6 Helix has been attached”
Default library selected:
Four songs were selected OK, then the MIDI messages no longer worked. (Reproducing my earlier experiences)
I selected Google library:
“Midi device Line 6 Helix has been detached”
“Line 6 Helix [0]” was displayed on both input and output ports. (I was puzzled by the zero. Is that saying it's disconnected? The Helix was on channel 5)
Commands didn’t work at all.
I detached and reattached the USB cable. It asked for permission to use audio from the Helix. Accepted.
Didn’t work.
I selected High performance Library:
“Midi device Line 6 Helix has been attached”
Now consistently it selects the song correctly but MobileSheets crashes immediately every time. However, if I open MobileSheets and reselect the same song, it doesn’t crash. I guess that the MIDI message isn’t being re-sent.
In other news, I tried routing signals via a Kenton MIDI USB Host Mk2, but it wasn’t recognised as a host at all. The tablet warned me I was using a charger with a slow charge rate!
Do these symptoms prompt any ideas?
I am beginning to think that I may have a bad, or wrong USB cable. I will have another coming in a day or two that is specifically an OTG cable from USB C to USB B. Unless you have any other suggestions, I will report back after I try that.
Cheers
Simon
Thanks again - but no solution, just more symptoms. I tried your suggestions without success, then decided to do a systematic test of the options.
I pulled out the USB cable and reinserted it and got a message something like “Midi device Line 6 Helix has been attached”
Default library selected:
Four songs were selected OK, then the MIDI messages no longer worked. (Reproducing my earlier experiences)
I selected Google library:
“Midi device Line 6 Helix has been detached”
“Line 6 Helix [0]” was displayed on both input and output ports. (I was puzzled by the zero. Is that saying it's disconnected? The Helix was on channel 5)
Commands didn’t work at all.
I detached and reattached the USB cable. It asked for permission to use audio from the Helix. Accepted.
Didn’t work.
I selected High performance Library:
“Midi device Line 6 Helix has been attached”
Now consistently it selects the song correctly but MobileSheets crashes immediately every time. However, if I open MobileSheets and reselect the same song, it doesn’t crash. I guess that the MIDI message isn’t being re-sent.
In other news, I tried routing signals via a Kenton MIDI USB Host Mk2, but it wasn’t recognised as a host at all. The tablet warned me I was using a charger with a slow charge rate!
Do these symptoms prompt any ideas?
I am beginning to think that I may have a bad, or wrong USB cable. I will have another coming in a day or two that is specifically an OTG cable from USB C to USB B. Unless you have any other suggestions, I will report back after I try that.
Cheers
Simon