[Kdenlive-devel] Important: fix for audio cracking noise

[jb]

Hi everyone.

I just committed what should hopefully fix the problem with audio cracks when
mixing the same clip on different tracks.
http://www.kdenlive.org:80/mantis/view.php?id=228

This is a large commit with important internal changes. It is possible that
your Kdenlive project files (version 0.7) do not correctly load after this
upgrade.

If you have important project files, please make sure to create a backup copy.
If you have trouble opening them, please report bugs and I will try to fix
them.

Since this is a rather big change in Kdenlive, I will wait for approximatively
one week to see if we discover nasty side effects. This will also leave some
time to fix a few small remaining bugs, and after that I will consider
releasing Kdenlive 0.7.

regards
jb

[Felix Hammer]

Hi jb

Post by jb
I just committed what should hopefully fix the problem with audio cracks
when mixing the same clip on different tracks.

There is a compiling problem in SVN in rev 2606:

[ 5%] Building CXX object
src/cmake_bindir/CMakeFiles/kdenlive.dir/docclipbase.o
/home/doitux/Programme/kdenlive-kde4/kdenlive/src/docclipbase.cpp: In member
function ‘const GenTime& DocClipBase::maxDuration() const’:
/home/doitux/Programme/kdenlive-kde4/kdenlive/src/docclipbase.cpp:166:
warning: reference to local variable ‘dur’ returned
/home/doitux/Programme/kdenlive-kde4/kdenlive/src/docclipbase.cpp: In member
function ‘void DocClipBase::setProducer(Mlt::Producer*)’:
/home/doitux/Programme/kdenlive-kde4/kdenlive/src/docclipbase.cpp:386:
error: ‘class KThumb’ has no member named ‘hasProducer’
/home/doitux/Programme/kdenlive-kde4/kdenlive/src/docclipbase.cpp: In member
function ‘void DocClipBase::slotRefreshProducer()’:
/home/doitux/Programme/kdenlive-kde4/kdenlive/src/docclipbase.cpp:473:
warning: deprecated conversion from string constant to ‘char*’
make[2]: *** [src/cmake_bindir/CMakeFiles/kdenlive.dir/docclipbase.o] Fehler 1
make[1]: *** [src/cmake_bindir/CMakeFiles/kdenlive.dir/all] Fehler 2
make: *** [all] Fehler 2

regards
Felix

________________________________
http://www.lehrsaiten.de
http://www.pokerth.net

[jb]

Fixed now, thanks
jb

[Felix Hammer]

Hi jb

Post by jb
Since this is a rather big change in Kdenlive, I will wait for
approximatively one week to see if we discover nasty side effects.

I dont really know if this is a new issues caused by the current changes.

What i do is following:

1. Add a clip to track 1
2. Cut the clip two times
3. Remove the second part
4. Place the third part on track 2 overlapping the end of the first part
5. Add a fadeout effect on the end of the first part with the green blinking
clip indicator
6. Add a fadein effect on the beginning of the third part with the green
blinking clip indicator

This should look like this: Loading Image...

When playing this crossfade you will hear at the fadein on track 2 that the
volume is on 100% for a few frames. Then suddenly it goes to 0% and slowly
fades in. --> http://pokerth.net/crossfade.mp4

Can you reproduce this?

best regards
Felix