1) Two days ago: MIDI sequencer tempo went up during play, and it's not a tiny increase, I'm guessing +10% or more. There seems to be nothing to help but to wait. I of course pressed stop, play, stop, rewind to beginning. It comes down when it wants, within half a minute or so. This time I had an audio track (recorded in Rosegarden, thus having the default 48kHz in/out) and the audio was not speeding -> MIDI and audio went out of sync.
So this points to ALSA / kernel? What should I try next? I have clean Ubuntu Studio 18.04 install, no tweaks (having default 48 kHz still and I don't even know how to change that for Rosegarden or my system yet). 2 x M-Audio Delta 1010LT (though only one in audio use via JACK, both having ALSA MIDI out, cards are synced together via S/PDIF), onboard audio disabled from BIOS, no other soundcards (net, USB, BT... nothing I can think of). RG says the timer is "system". I once tried to select HR, but it jammed the whole computer, power button reset was needed. Reading what I type: I have to double check the second Delta 1010LT, if it's really synced to the first card. Both of the cards are used for MIDI, and sync out from RG is connected to both. I would be happy to use soundcard timer in my system all the time, if it just is reasonable option. 2) Using RG to send MIDI clock with start/stop/continue, I noticed Korg Volca Bass rush a few 16th in start, thus playing in advance (out of sync wrt RG sequence). I don't know if this is anyway related, so I though I will mention anyway. On other squencers I've used I guess they send MIDI clock all the time, and add PLAY/STOP when needed, so there was no rushing. Need to capture MIDI clocks or verify with other MIDI-syncable systems. Sami ke 6. maalisk. 2019 klo 0.07 D. Michael McIntyre ( rosegarden.trumpe...@gmail.com) kirjoitti: > On 03/01/2019 06:01 PM, Chris Cannam wrote: > > > - HR timer: good if working, but used to be very unreliable, able to > lock up the whole system > > It seems that is still the case all these years later. > > > Ah, yes. Welcome to the... wherever we are. > > I guess this is the future, minus the year of the Linux desktop and the > flying cars. > > > Time goes faster as you get older, of course. So the things you're > trying to remember, which you think of as recent, are more than a decade > old - that would have been a while back at any age. > > That is sad but true. > > -- > D. Michael McIntyre > > > _______________________________________________ > Rosegarden-devel mailing list > Rosegarden-devel@lists.sourceforge.net - use the link below to unsubscribe > https://lists.sourceforge.net/lists/listinfo/rosegarden-devel > -- Sami Jumppanen http://netti.nic.fi/some-e
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