1.1 Playback problem.

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MarkSealey
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Re: 1.1 Playback problem.

Post by MarkSealey » Sat Jul 08, 2017 4:02 am

Have been working on and off all day: 50% of the time (that is one session in two) I have to restart Dorico because I run into this.

I get more Stops than Jerks.

If I continue instead of relaunching, then notes become unelectable and nothing else works.

Isn't this a priority?

Could it be instrument-specific?

Good luck and thanks for investigating!
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Mark Sealey
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Re: 1.1 Playback problem.

Post by MarkSealey » Sat Jul 08, 2017 6:22 pm

Three questions on this, if I may:

1 - is it only a phenomenon from version 1.1 on?
2 - what suggestions do users have for tweaking the instruments, audio engine and environment… buffer size etc?
3 - is it known whether this happens only for certain instruments (and not others)?

Thanks!
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Re: 1.1 Playback problem.

Post by dbudde » Sat Jul 08, 2017 7:52 pm

I find that the playback line works most/all the time if the full score (vertical) is visible on screen. If zoomed in then the playback line gets stuck sometimes. Maybe it's happening when processing notes off screen (like it stops that process if it doesn't need to display the data). Just a thought.

But dragging the screen around always unsticks the playback line and it catches up.
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MarkSealey
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Re: 1.1 Playback problem.

Post by MarkSealey » Sat Jul 08, 2017 8:25 pm

Thanks, @dbudde!

I'll give that a try. It also happens for me whether or not the Playback head (and hence the notes) is/are/(supposed to be) visible.

I almost always have the score zoomed.

Shall experiment with Gallery vs Page view; is that what you mean by 'vertical'?

Does dragging the score around or resizing the entire Dorico window work for you, please?

If you're right as to the solution, doesn't it suggest a possible cause: window refresh code?
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Re: 1.1 Playback problem.

Post by MarkSealey » Sat Jul 08, 2017 8:53 pm

Had it stick on first opening a score today.

Already zoomed to 200%.

Dragging the score itself (white centre on light blue, just to be clear) did nothing to fix it.

Switching into Engrave mode, then immediately back to Write did fix it. (Thanks Daniel!)

I could live with doing that all the time (I think!); but what's of greater concern is that once I've had a 'stick', then I usually have to relaunch Dorico because most other operations become impossible… I can no longer select or deselect notes, neither Escape 'resets' things; nor Space stops the Playback and I can't get back to a given point in the score.
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Re: 1.1 Playback problem.

Post by dbudde » Sat Jul 08, 2017 9:45 pm

Yes, by vertical I mean galley view zoomed to fit. Dragging the screen always fixes it for me.
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Re: 1.1 Playback problem.

Post by MarkSealey » Sat Jul 08, 2017 10:20 pm

Thanks.

Have had it numerous times; switching modes so far has always fixed it; dragging doesn't. Interesting.
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Re: 1.1 Playback problem.

Post by dbudde » Sat Jul 08, 2017 10:23 pm

When I say drag, I mean two fingers on the track pad and move the score around on the screen. Is that what you mean?
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Re: 1.1 Playback problem.

Post by MarkSealey » Sat Jul 08, 2017 10:28 pm

Yes, dbudde - except I'm using a mouse. Its pointer turns into a hand. Drag accordingly.

Good to know it works for you :-) Thanks!
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Re: 1.1 Playback problem.

Post by MarkSealey » Sun Jul 09, 2017 12:38 am

Just also had a case where it froze Dorico entirely. Had to Force Quit; then relaunch twice to get sound back.

I believe that may be because I didn't first pause the Playback head.

Suggest it's advisable to do so before the 'Switch-between-Modes' workaround!

Hope that's helpful?
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Re: 1.1 Playback problem.

Post by Evan Scamman » Sun Jul 09, 2017 1:17 pm

I'm running windows 8. With 1.1, the screen will often scroll along with the music, but just as often the screen stops scrolling while the music continues on past the current page. I'd say it's about 50/50.

I have quite a few flows in my project, but only one flow is enabled at a time, and each flow has one instrument and is no longer than 24 bars.

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Re: 1.1 Playback problem.

Post by paulmellors » Sun Jul 09, 2017 8:34 pm

Get's stuck for me on W10 too. Only started the trial yesterday, but both (simple) scores created give same result.

Paul

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Re: 1.1 Playback problem.

Post by MarkSealey » Sun Jul 09, 2017 10:48 pm

Could this be both versions, then, Mac and Windows?

I've found that the only reliable (so far) workaround is to stop playback (even when it's not visible), which is important to prevent further degradation or freezes; then switch Modes - e.g. to Engrave and back to Write.
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Re: 1.1 Playback problem.

Post by antonyb » Mon Jul 10, 2017 10:52 pm

I also find that in 1.1 it is stuck more often than 1.0 (am on a 2015 MacBook Pro 13)

In 1.0, I used to just move the page manually by either grabbing it or using vertical/horizontal scroll bar.
Now with 1.1 it does NOT recover (meaning reappear, move again etc.) when moving the page.

My debugging effort showed that it happen more often as the tempo increases, so are the number of events on the score.

Hopefully this help
Last edited by antonyb on Tue Jul 11, 2017 4:05 pm, edited 1 time in total.

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Re: 1.1 Playback problem.

Post by MarkSealey » Mon Jul 10, 2017 11:01 pm

For me, it's apparently completely random and can happen at any time in the same score, which would suggest it doesn't follow concentration of notes etc. But of course that could be atypical :-)
antonyb wrote:…My debugging effort showed that it happen more often as the tempo increases, so are the number of events on the score.…
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Re: 1.1 Playback problem.

Post by MarkSealey » Sun Aug 13, 2017 12:00 am

Anyone found a reliable way to prevent this from happening, please?

Could it be a 'memory leak', given our inability to understand the cause as something reproducible after certain actions?

Although switching between Play and Write modes sometimes fixes it, not always. It's unpredictable at best.

Sometimes the bug is apparent after a couple of bars; on other occasions I can work for hours before I get it.

What's more, there would seem to be two versions: one where the Playback Head freezes; and one where it progresses rightwards off the visible/current portion of the score but playback continues - yet you have to scroll to see the PlayBack Head. In the latter case you would almost expect that resizing the Dorico window might redraw it and so reveal the Head. But it does not.

Do we have any news of how soon we'll get a fix, please: I tend to rely almost totally on seeing where I am in my scores this way and find it's a major disadvantage?

Thanks so much!
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Re: 1.1 Playback problem.

Post by Daniel at Steinberg » Sun Aug 13, 2017 11:38 am

No, there is unfortunately no news about a fix at the moment. Several members of the team have invested a fair bit of time into trying to solve this problem, but so far to no avail.

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Re: 1.1 Playback problem.

Post by MarkSealey » Sun Aug 13, 2017 7:06 pm

Thanks, Daniel. Good luck! Odd, isn't it. Do most people experience it? If not, is there any mileage in identifying possible causes by isolating the environments etc of those who do?
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Re: 1.1 Playback problem.

Post by PaulWalmsley » Sun Aug 13, 2017 8:17 pm

Unfortunately not. We can usually reproduce it on each of our machines, but inconsistently. It goes wrong one minute but is fine on the next test, which makes trying to pin down a cause or solution very difficult.
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Re: 1.1 Playback problem.

Post by Ulf » Sun Aug 13, 2017 8:28 pm

In the beginning we only saw that playhead freezing on Mac, but recently it also happened to me on Win, not so strong though, the playhead starts moving again after a couple of bars by itself.

Not a real workaround for Mac, but if the playhead freezes, grab the vertical slider with the mouse and wiggle it. As long as you do that the playhead position will get updated.
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Re: 1.1 Playback problem.

Post by MarkSealey » Sun Aug 13, 2017 9:51 pm

Thanks, Paul - I can imagine how frustrating this must be.

I do hope you'll ask here if you feel that any of us experiencing it could help :) Good luck!
PaulWalmsley wrote:
Sun Aug 13, 2017 8:17 pm
Unfortunately not…
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Re: 1.1 Playback problem.

Post by MarkSealey » Sun Aug 13, 2017 10:01 pm

Thanks, Ulf!

That inclusion of both platforms, paradoxically, should help: it's unlikely to be related to OS or Audio Engine or even screen drivers, then.

There are times when the freeze or positioning off screen seems to provoke a runaway state. Yesterday, for instance, I tried to scroll to the right to catch up with it; then selected a single note. No Ties - but all three in the bar turned orange. I've learnt to restart Dorico after that happens as things can very quickly go downhill after that.

The tip which Daniel kindly posted - switch between Write and Play doesn't always work. My instincts tell me to resize the window. But that rarely does it.

The fact that there are at least three separate manifestations of the bug would seem to say something:
  • Playhead freezes; playback continues
  • Playhead scrolls off to the right (as it should); playback halts
  • Playhead scrolls off to the right (as it should); playback continues
Could it be some relationship between the (counter in the) Transport widget and the bar? Or something to do with internal pointers to tempo etc?

Thanks for all your efforts to track it dow and fix it!
Ulf wrote:
Sun Aug 13, 2017 8:28 pm
In the beginning we only saw that playhead freezing on Mac, but recently it also happened to me on Win…Not a real workaround for Mac, but…
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Mark Sealey
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