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Re: [Denemo-devel] Showstopper bug?

From: Dominic Sacré
Subject: Re: [Denemo-devel] Showstopper bug?
Date: Tue, 15 May 2012 19:48:30 +0200
User-agent: KMail/1.13.5 (Linux/2.6.32-41-generic; KDE/4.4.5; i686; ; )

Hi Richard,

On Tuesday 15 May 2012 10:16:34 you wrote:
> So it seems that if you re-enable the portmidi backend it will have the
> bad effect that during a pause the playback time will continue to get
> updated. The playhead will continue to move along the notes, although
> the portaudio output is paused.

That's the behaviour I see when I use the PortAudio and ALSA MIDI backends 
(which is the combination I actually use when I'm not running JACK).
Using PortMidi (with the return statement commented out) playback doesn't 
even start properly.
I'm not yet sure what exactly is going on there. In theory only one 
backend should advance the playback time (and thus the playhead).
Usually that would be done by the audio backend (which is synchronized to 
the sound card's sample clock), while the MIDI backend just follows 
whatever the audio backend does.


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