lfo control phase bug

[theguitarplayer]

don't know if it's a bug, but the phase in the controller rack seems to be sensitive to getting randomly thrown off the phase cycle . I wonder if this is a common problem and there is quick fix, or I'm in trouble. thanks!

[diiz]

I've never noticed but if you're sure of this please report on github.

[theguitarplayer]

never heard of it. link?

[zonkmachine]

Report issues here:
https://github.com/LMMS/lmms/issues

Which version of LMMS are you using?
Can you provide a demo project where this happens?

[theguitarplayer]

I use 0.4.15
link:
http://lmms.sourceforge.net/lsp/index.p ... &file=4946
it starts at the loop.
It might be hard to detect so compare it with
https://soundcloud.com/gordon-white-5/finale
i exported the very project I uploaded to sharing platform and put on sc but they sound different for some reason. the sc version is more "offbeat" than the original. But they are both the same, I am positively certainly sure.

[diiz]

Is there tempo automation in the song? I mean, does the tempo vary at all or stay static during the song?

I think I've sometimes noticed that tempo syncing doesn't work too well on export if the tempo changes at all during the song. This could cause what you perceive as an "off-beat" LFO.

Also I really recommend reporting this on the github issue tracker - the developers who work on the core engine don't really read this forum (they don't have time I guess, busy with preparing the next release), so to get attention and a possible fix for this problem, it's best to report it there. You know best how to describe the issue so I recommend that you do it.

[theguitarplayer]

http://lmms.sourceforge.net/lsp/?action=show&file=4962
listen to this

[diiz]

I'm basically trying to demonstrate a bug in the lfo controls. Listen to this song and let it loop-don't move anything! When it starts over again the rhythm should be thrown off. If that's true than I believe that is a bug. Notice how I don't change anything in controller 1 except for speed yet it sounds different. funny thing if you loop it twice it goes back to origional.

Well here's the thing. When you change the speed of a LFO, that obviously affects the phase as well. If you change the speed back later on and it's in a different phase than where it would be without the speed change, then the phase stays there - so to correct these kinds of errors you'll have to modify the phase offset.

It would be nice to have an automatable sync button in the LFO, sure. Maybe a github issue could be filed for this.

Also, when you start playback of a song, the LFO gets synced to phase 0 + phase offset. But they do not get synced on loopback, so obviously if your loop point is not at phase 0, the LFO will be thrown off phase. A sync button would fix this issue too.

[diiz]

OK yeah, it seems the LFO syncing is somewhat broken.

I've filed an issue on github, hopefully this will get fixed in time for the next release, which is coming up very soon.

[theguitarplayer]

all right, thank you so much! I'll be looking forward to it.