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Playback - the green line

Posted: Tue Jan 23, 2018 1:50 pm
by Auerbach
I’m just testing Dorico 1.2 and found a strange issue I can’t explain: When I play a score, I see a green line which moves along the notes. What is it for? At first I thought, it shows which notes are currently played, but this is not the case. It moves much faster as the music. Also strange: when this green line arrives at the end of the score, the music stops, but this is before the end because the line moves faster. Is it possible to change this?

I use Dorico 1.2 and Mac OS 10.12.6

Re: Playback - the green line

Posted: Tue Jan 23, 2018 2:15 pm
by pianoleo
The green line SHOULD follow playback.

Your problem sounds a bit like this: viewtopic.php?f=246&t=118453&p=643685&h ... nc#p643685

though I understand you’re on 1.2. Check whether your sample rate matches your sound driver’s sample rate.

Re: Playback - the green line

Posted: Tue Jan 23, 2018 2:27 pm
by Auerbach
I don’t understand where and how to check which sample rate and what it is. Is it possible to explain his for a non specialist?

Re: Playback - the green line

Posted: Tue Jan 23, 2018 2:47 pm
by ReRei
I am not sure if it has to do with any sample rate. This problem of the playback line not following the notes should habe been solved in version 1.2 (I think i read about this at least) but I also experience this problem still from time to time. It is not completely solved at least not on Mac. Quite annoying.

Re: Playback - the green line

Posted: Tue Jan 23, 2018 3:16 pm
by Ulf
When the green line is not in sync with the playback, then the reason is that Dorico and the audio engine disagree over the currently used sample rate. This can happen if another program or outside of Dorico the sample rate of the audio device gets modified.

If it happens to you that the green playback line does not match the actual playback, then choose from the main menu Edit > Device Setup. In the dialog choose the drop down box labelled 'Sample Rate' and change it to some other value and then back to as it was before. Do this slowly, as it might take a second or two for the sample rate change to actually take effect.
Then close the dialog and everything should be fine again.

Re: Playback - the green line

Posted: Tue Jan 23, 2018 4:02 pm
by Auerbach
Aha. Thank you. This worked. But which application changes what? I don’t understand. Anyway: does this mean that I have to do this always when I use Dorico?

Re: Playback - the green line

Posted: Tue Jan 23, 2018 4:29 pm
by John B
I think I had problems related to this the other day when I was running Encore briefly (to remind myself of the usefulness or otherwise of real-time MIDI input). It's fine now.

Re: Playback - the green line

Posted: Tue Jan 23, 2018 8:30 pm
by Ulf
Auerbach wrote:
Tue Jan 23, 2018 4:02 pm
But which application changes what?
Other applications that also use the sound device.
And they may change the current sample rate.
Does this mean that I have to do this always when I use Dorico?
Only if the green playback line is out of sync with playback.
I would expect this to happen only very rarely, so please keep an eye on and if you need to do it frequently, then let us know and we'll try figure out what is actually changing the sample rate in the background.

Re: Playback - the green line

Posted: Thu Jan 25, 2018 12:36 am
by Auerbach
OK. That worked. Now I have the problem that I hear no sound at all. This happened after I had the problem that I couldn’t add lyrics. After rebooting the Mac, it works. But now there is no sound. No other program has the slightest problem to play sounds on this Mac. What can it be?

Re: Playback - the green line

Posted: Thu Jan 25, 2018 8:31 am
by Ulf
Please choose from the main menu Help > Create Diagnostic Report. That will create a zip file on your desktop, please send it to u dot stoermer at steinberg dot de and I will have a look at the contained log data.

Re: Playback - the green line

Posted: Fri Jan 26, 2018 11:44 am
by Auerbach
I’ll do this next time when the problem appears. For the moment it works.

Re: Playback - the green line

Posted: Sat Jan 27, 2018 1:33 am
by MarkSealey
Yes, it's begun to reappear for me too, alas.

I've tried slowly resetting my Sample Rate (perhaps 19,200 is too high?).

But the scrolling bug is still evident… the playhead/green line moves off the page to the right without the score following.

What's more, I can often solve this by switching Modes (away from Write - to Engrave, Play or Print etc) back and forth - as previously.

Would any more details be helpful in tracking this down?

TIA!

Re: Playback - the green line

Posted: Sat Jan 27, 2018 9:32 am
by ReRei
MarkSealey wrote:
Sat Jan 27, 2018 1:33 am
Yes, it's begun to reappear for me too, alas.

I've tried slowly resetting my Sample Rate (perhaps 19,200 is too high?).

But the scrolling bug is still evident… the playhead/green line moves off the page to the right without the score following.

What's more, I can often solve this by switching Modes (away from Write - to Engrave, Play or Print etc) back and forth - as previously.

Would any more details be helpful in tracking this down?

TIA!
Yes that’s what I meant. The problem of the playback line not following the music is still there. It has become better since the former versions but is unfortunately still there.

Re: Playback - the green line

Posted: Sat Jan 27, 2018 4:58 pm
by MarkSealey
Thanks, ReiRei - Yes, much better. But still present.

Re: Playback - the green line

Posted: Thu Feb 01, 2018 11:58 pm
by Daniel at Steinberg
Until now we have had no reports of the score not following the playback line. Are you sure you have the relevant preference setting, i.e. ‘Follow playhead during playback’, set, at the bottom of the General page of Preferences?

Re: Playback - the green line

Posted: Fri Feb 02, 2018 1:02 am
by ReRei
Yes the preferences are set correctly. I encountered the problem in galley view (landscape view). When transcribing a song and switching between the 2 apps Dorico failed following the green line.

Re: Playback - the green line

Posted: Fri Feb 02, 2018 1:26 am
by MarkSealey
I just double checked and, Yes - that 'follow' setting is as it should be.

The phenomenon happens far, far less often than before - but I do get it still, I'm afraid. Sorry!

Re: Playback - the green line

Posted: Fri Feb 02, 2018 1:37 am
by Daniel at Steinberg
Well, it’s not the same issue, Mark, as the problem where the playback line and the transport would freeze up, clearly. What you’re saying now is that the playback line continues to move, but the score doesn’t move in time to follow it when it scrolls out of view.

Re: Playback - the green line

Posted: Fri Feb 02, 2018 1:45 am
by MarkSealey
Daniel,

Yes - that's right. Thanks. Sorry. I assumed they had the same root cause. Glad that they don't - that is, that the first one has in fact been fixed :-)

Re: Playback - the green line

Posted: Fri Feb 02, 2018 1:50 am
by Daniel at Steinberg
I need more evidence of this new problem before I can ask the team to do anything about it, since it’s not something we’ve ever seen, and nor have I ever seen it reported by anybody until today. So please capture a video showing the problem in action so I can see it for myself.

Re: Playback - the green line

Posted: Fri Feb 02, 2018 3:54 am
by MarkSealey
Of course - thanks, Daniel!

As i say, it's a lot rarer than the first phenomenon was. I spent a good few minutes this evening trying to get a piece which has previously so behaved to reproduce it 'on camera'. No dice.

But the next time I get it, I have QT at the ready and will capture it and send it to you.

Re: Playback - the green line

Posted: Fri Feb 02, 2018 9:08 am
by Johan-v
Hello,

I have problems with playback in write mode when the right panel is open.
The green line goes behind the panel and the score is not updated during this time.

Regards,

Johan

Re: Playback - the green line

Posted: Fri Feb 02, 2018 9:22 am
by JackvL
Daniel at Steinberg wrote:
Fri Feb 02, 2018 1:37 am
Well, it’s not the same issue, Mark, as the problem where the playback line and the transport would freeze up, clearly. What you’re saying now is that the playback line continues to move, but the score doesn’t move in time to follow it when it scrolls out of view.
Yesterday I had this problem (ones). The playback line follows the score, but the screen didn't refresh. (Mac).
Can't reproduce it......

Re: Playback - the green line

Posted: Fri Feb 02, 2018 9:28 am
by Auerbach
It happens sometimes, sometimes not. It is like the shortcut ALT-cmd-0 which sometimes hides all panels and sometimes shows the entire page (as intended).

Re: Playback - the green line

Posted: Fri Feb 02, 2018 10:27 am
by PaulWalmsley
Mark - you mentioned that you had a sample rate of 19,200. That's a very odd value. Try changing it to 44,100 (or 48,000) as you'll get much better results. One possible manifestation of this playback line issue is if some other application is changing the soundcard's sample rate. So check to see if you have any other software that might grab the soundcard running, eg screen/sound capture applications, Skype, etc