Tom:
I just tried it without using qjackctl or qsynth. For sound generation,
I used only my Soundblaster card (emu10k1).
I used my keyboard, recording on the two MIDI channels simultaneously
(this time 5, and 6), and it seemed to go well while recording the
piece. I saw the note-lines appearing in the segments of both tracks,
simultaneously.
I finished playing the piece, and the position-line in the segments pane
was still moving.
I then clicked the "stop" (the filled-in square) toolbar button of the
Rosegarden window, and the Rosegarden window immediately disappeared (I
assume from the crash). It doesn't bring up the bug-report dialog now
because I have already reported the crash.
- Aere
On Tue, 2012-05-22 at 11:54 -0600, Aere Greenway wrote:
> Tom:
>
> In many cases, people can (from their synthesizer) send on two
> channels at once - they just don't realize it.
>
> If your synthesizer has the capability of doing a "split keyboard",
> which means designating part of the keyboard for one instrument, and
> the other part for another instrument, it has the capability of
> sending on two MIDI channels at the same time.
>
> There is probably another part of the MIDI setup where you designate
> the two MIDI channels used for each part of a split-keyboard. My old
> Roland D20 synthesizer can even do a keyboard split. My newer Yamaha
> S90-ES can do it, but it's has to do with setting up a custom voice.
>
> You could also test it by running vkeybd (the old virtual MIDI
> keyboard), along with VMPK. Use both of them (rather than two
> instances of either) so you can tell them apart.
>
> When you click the "Manage MIDI Devices" toolbar button in Rosegarden,
> you will see the two virtual keyboard MIDI input devices. Both
> virtual keyboards have a way of specifying which MIDI channel they
> send on.
>
> One other piece of information that might be helpful, is that I was
> using qjackctl, and qsynth (for the sound generation). I don't know
> if that affected it. I will run the same test using just my
> Soundblaster card (with its emu10k1 synthesizers) and see if that
> makes a difference, letting you know if it does.
>
> - Aere
>
>
> On Tue, 2012-05-22 at 12:41 -0400, Tom Breton (Tehom) wrote:
>
> > > All:
> > >
> > > I've started trying out the version of Rosegarden distributed with
> > > Lubuntu 12.04, and encountered a problem. I think the crash has already
> > > generated a bug-report, but with this e-mail, I'm hoping to give you a
> > > heads-up of the problem, and fill in a few more details.
> >
> > So that's Lubuntu 12.04, released two weeks before our 12.04, and it has
> > Rosegarden 11.11.42. I highlight this because our playthru code and some
> > sequencer/driver co-ordination did change in Rosegarden 12.04 (my
> > responsibility). But you're experiencing that on 11.11.42
> >
> > I can't reproduce it. My keyboard only sends on one channel and I don't
> > get a crash.
> >
> > I know you said you couldn't easily upgrade, and I don't want to hold out
> > too much hope that distantly-related changes somehow fixed it. But if you
> > find you can upgrade, please let us know how it goes. And thank you for
> > the bug report.
> >
> > Tom Breton (Tehom)
> >
> >
>
>
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--
Sincerely,
Aere
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