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tempo change problem

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dissected
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Joined: 04/17/2010

Hi. Last night I was using hydrogen and ardour synced through jack to demo a song. If I specified a tempo change in ardour, like from 100 to 115 at bar 24 beat one for instance, hydrogen would skip the first several bars after the change during playback and become out of sync with ardour. While it skips it sounds like it plays several samples at once. I tried working around it but it never comes back on beat, and the number of bars it skips is proportional to how large the tempo change is. Ardour just rolls along as usual, though. I don't know if this is just me, a bug or whatever, but any insight into how one might work around this will be greatly appreciated.

dissected
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Joined: 04/17/2010

I've since been infromed that this is a known issue having to do with jack not having a common tempo map. Sorry if I was beating a dead horse here. :(

Eldmannen
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Joined: 04/17/2010

Mail the authors of JACK and tell them to fix it. :)
Hopefully they fix it soon. :)

dissected
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Joined: 04/17/2010

Thanks, I'll do that. One thing worth mentioning is that hydrogen still doesn't have the ability to specify tempo changes within itself. Are there any plans for this in the future?

Eldmannen
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Joined: 04/17/2010

You can change "bpm" (beats per minute), but maybe thats not what you mean...

dissected
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Joined: 04/17/2010

Yes, I know you can change the bpp but it doesn't allow you to specify tempo changes mid-song. Not sure why this was overlooked. Maybe there's a technical reason, but a lot of music includes tempo/time signature changes so I would consider the lack of this feature a pretty big deal. It is an excellent program however, and I'm totaly ready to use it for some serious work, but the lack of this feature prevents me from being able to use it, and probably a lot of other people as well.

Eldmannen
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Joined: 04/17/2010

I think that under where you put notes/instruments you can change the velocity by drag up/down that black line vertically and thats what you want...

dissected
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Joined: 04/17/2010

no I'm not refering to velocity at all, just tempo changes

Eldmannen
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Joined: 04/17/2010

Okay, sorry I couldnt help you. I dont know much about music instruments and making of music and musical terms.