I guess I found a bug, and after a quick search through the mantis nothing turned up. So I'm gonna describe it and maybe someone knows about this or can point me to something completely different :-) (or we conclude that it is a bug and I'll file a report...)
Just for my understanding:
If I stack two audio clips on top of each other, say one in track_2 and the other in track_3, the 2 streams/tracks should be added/mixed to create one output stream (so if both streams would contain exactly the same, the output would be "double" the volume of one), right? That's how this is supposed to work, or am I getting this wrong? As opposed to video clips, where mixing is controlled by the alpha channel, right? :-)
- I make a project with 1 Video track, 3 Audio tracks, profile DV/DVD-Pal
- I import 1 video clip (mpeg2-dvd-pal inside an mpg container, without audio) ~ 87 minutes, 3.5 GB
- I import 2 audio clips (pcm-le-16bit-2ch inside wav, ) ~ 82 and 86 minutes, 900 Mb, 950 Mb
- Every thing is fine,
- So I edit audio, add some cross fades (using fade out on one track, and fade in on the other track), work some time (~90 minutes or so), what ever ...
- Now suddenly audio mixing is not working any more: Instead of mixing the clips on the two tracks it just plays the top most of the clips (the same behavior as if it were video clips)
- That affects every thing on that two tracks including the previously working fades/mixes
- I save the project
- close Kdenlive
- open the project in a new Kdenlive -> the same, still not working
I add a new (audio) track after last audio track: track_4 (ahhhh got that wrong sry -> track was already there of course)
Now But mixing is working between track_3 and track_4 but still and not working between track_2 and track_3
on Kubuntu 10.10 64bit
Has anyone encountered that behavior before? Any ideas?
ps.: I love Kdenlive it's nearly everything I wish for when editing video/audio -> THANKS!