Bug: Can’t export MIDI in format 1

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Gzalyu_
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Bug: Can’t export MIDI in format 1

Post by Gzalyu_ » Sat Aug 06, 2022 7:26 am

Using an iPad Air 5, iPadOS 15.6.

When attempting to export multiple MIDI tracks at once, I get no response from the program:
Image

If I then tab away from the application and reopen it, I get the following:
Image

I can’t tap anywhere on the screen in either case, nor does the enter key (or any other key on the keyboard apart from iOS functions) do anything.

Gzalyu_
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Re: Bug: Can’t export MIDI in format 1

Post by Gzalyu_ » Sat Aug 06, 2022 7:28 am

Exporting one track at a time works, but then doesn’t align the tempos. Exporting with Format 0 works, but the result is unsuitable for import into MuseScore 3.

Support
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Re: Bug: Can’t export MIDI in format 1

Post by Support » Sat Aug 06, 2022 9:37 am

Odd, I can't reproduce that. The "How to deal with MIDI channel conflicts" dialog works fine for me.

The dialog appears because your MIDI tracks use the same MIDI channel. You can open the AU windows and choose a different channel for each track. Even if just temporarily to export the MIDI tracks.


Giel Bremmers

MisplacedDevelopment
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Re: Bug: Can’t export MIDI in format 1

Post by MisplacedDevelopment » Sat Aug 06, 2022 1:53 pm

I see the same thing if I create two MIDI tracks both on channel 1 on my iPad Mini 6 and then try the export, but not on the iPad Air. Gzalyu_ - what sort of iPad are you using? If it is a Mini then it feels like this is another occurrence of the issue we have seen with some other dialogs on the Mini which cause a hang like this. Do you see a hang when you try to open Song Properties -> Delete Song (obviously do this with a test song!) ?

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Re: Bug: Can’t export MIDI in format 1

Post by Support » Sun Aug 07, 2022 12:15 pm

Hmm, interesting. Gzalyu_ uses an iPad Air 5. Perhaps that model has the same problem?


GIel Bremmers

Gzalyu_
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Re: Bug: Can’t export MIDI in format 1

Post by Gzalyu_ » Wed Aug 10, 2022 3:51 am

If it makes a difference, my track inputs are MPE. I’ll see what I can do with channels and report back.

Gzalyu_
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Re: Bug: Can’t export MIDI in format 1

Post by Gzalyu_ » Wed Aug 10, 2022 3:58 am

Separating the channels works as a workaround! Appreciated, that will cover me at least for projects with up to 16 tracks.

Gzalyu_
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Re: Bug: Can’t export MIDI in format 1

Post by Gzalyu_ » Wed Aug 10, 2022 4:20 am

MisplacedDevelopment wrote:
Sat Aug 06, 2022 1:53 pm
Do you see a hang when you try to open Song Properties -> Delete Song (obviously do this with a test song!) ?
Ah yep, deleting hangs for me; so do a few other things with that kind of dialogue. Same behaviour where I can tab in and out to see the dialogue, but can’t click any of the buttons on it.

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Re: Bug: Can’t export MIDI in format 1

Post by Support » Thu Aug 11, 2022 8:01 am

I may have to get an Air 5 in the near future. If that would actually happen I could probably reproduce the problem with the dialogs, and find a solution.


Giel Bremmers

MisplacedDevelopment
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Re: Bug: Can’t export MIDI in format 1

Post by MisplacedDevelopment » Thu Aug 11, 2022 10:27 am

I would be more than happy to run a beta build or whatever containing extra diagnostics if it would help you track this down. Unless you were looking for an excuse to buy a new iPad of course ;)

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Re: Bug: Can’t export MIDI in format 1

Post by Support » Fri Aug 12, 2022 7:43 am

MisplacedDevelopment wrote:
Thu Aug 11, 2022 10:27 am
Unless you were looking for an excuse to buy a new iPad of course ;)
:mrgreen:
Apple provides excuses for developers to buy new hardware all the time, unfortunately ;-)


Giel Bremmers

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Re: Bug: Can’t export MIDI in format 1

Post by Support » Mon Aug 15, 2022 7:40 am

So, I got an Air 5 and I see the problem now!

I notice the Air 5 doesn't have a 'home' button on the side. Does your iPad Mini have a home button, MisplacedDevelopment? Perhaps that's has got something to do with it.


Giel Bremmers

MisplacedDevelopment
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Re: Bug: Can’t export MIDI in format 1

Post by MisplacedDevelopment » Mon Aug 22, 2022 6:48 am

Sorry, missed this question. No, the Mini does not have a home button. The latest update fixes my hangs :)

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Re: Bug: Can’t export MIDI in format 1

Post by Support » Mon Aug 22, 2022 7:27 am

No problem, I found the answer in another thread :mrgreen:

Giel Bremmers

Gzalyu_
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Re: Bug: Can’t export MIDI in format 1

Post by Gzalyu_ » Tue Aug 30, 2022 12:53 am

Good news, I can finally delete songs!

Thanks for the fix Giel :)

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