[Ardour-Users] Upgrade to 5.4: MIDI file timing issue

Paul Davis paul at linuxaudiosystems.com
Thu Oct 6 14:05:13 PDT 2016

Did you use a meter/time-signature with a denominator other than 4?

On Thu, Oct 6, 2016 at 4:51 PM, Q <lists at quirq.net> wrote:

> Hi
> Yesterday I upgraded from 5.3 to 5.4 (ardour.org Linux 64-bit build). I
> saw in the notes about some midi timing issues having been fixed. I think I
> might have run into one of these in earlier versions with imported midi
> files remaining "static" and not conforming to tempo changes I added on the
> Ardour timeline. But that's by the by.
> I've just opened a session with midi regions recorded in an earlier 5.x
> version and the regions are playing at, I'd guess, about half the speed
> they were before and hence completely out of time with the click and all
> the recorded audio. The midi regions also now extend beyond the end marker.
> They respond to being moved around i.e. they shrink or grow depending where
> on the timeline they are in relation to various bpm changes, but still
> always way too slow.
> I suspect this is related to the midi fix in 5.4 because the entire
> session is in a variety of x/8 time signatures. Is it expected that midi
> regions recorded in earlier versions will be effectively "broken" now that
> those bugs have been fixed? Is there a way to fix the regions so they play
> at the correct speed?
> Many thanks
> Q
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