Hello,
I'm writing in forum for the first time, and have tried what i red here but now I have no more clue

Prozedure:
- Download ubuntu 9.10, download kdenlive 0.7.5
- audio problems in kdenlive
- Download/change from libsdl1.2debian- alsa to libsdl1.2debian pulseaudio
also change in kdenlive- settings- audio to pulseaudio

now started to work with it

kdenlive crashes down every half-hour,
sound makes trouble, when people in the video start to talk, or a song, it sounds like a loudspeaker is broken or overdosed.

all the other stuff workes fine, and sound on everything except in kdenlive is also good, no problems.

I suppose kdenlive crashes down because of audio overload, something is missing...?

Somebody can help me? I really need to work with it!
!Thanxxx!
aneta


my veeeeery long bug report (of which I do not understand anything):

-- Backtrace:
Application: Kdenlive (kdenlive), signal: Aborted
[Current thread is 1 (Thread 0xb7861700 (LWP 1757))]

Thread 6 (Thread 0xadf7bb70 (LWP 2046)):
[KCrash Handler]
#6 0x0023a422 in __kernel_vsyscall ()
#7 0x049014d1 in raise () from /lib/tls/i686/cmov/libc.so.6
#8 0x04904932 in abort () from /lib/tls/i686/cmov/libc.so.6
#9 0x048fa648 in __assert_fail () from /lib/tls/i686/cmov/libc.so.6
#10 0x006d5dab in pthread_mutex_lock () from /lib/tls/i686/cmov/libpthread.so.0
#11 0x049b0a46 in pthread_mutex_lock () from /lib/tls/i686/cmov/libc.so.6
#12 0x00e903b5 in mlt_service_lock () from /usr/lib/libmlt.so.1
#13 0x00e903ee in mlt_service_get_frame () from /usr/lib/libmlt.so.1
#14 0x00e90564 in ?? () from /usr/lib/libmlt.so.1
#15 0x00e9044d in mlt_service_get_frame () from /usr/lib/libmlt.so.1
#16 0x00e96386 in mlt_consumer_get_frame () from /usr/lib/libmlt.so.1
#17 0x093ffa50 in ?? () from /usr/lib/mlt/libmltsdl.so
#18 0x006d380e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#19 0x049a38de in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 5 (Thread 0xad77ab70 (LWP 2088)):
#0 0x0023a422 in __kernel_vsyscall ()
#1 0x006d7e15 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2 0x049b087d in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3 0x093fed15 in ?? () from /usr/lib/mlt/libmltsdl.so
#4 0x006d380e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#5 0x049a38de in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 4 (Thread 0xb450db70 (LWP 2089)):
#0 0x0023a422 in __kernel_vsyscall ()
#1 0x006d7e15 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2 0x049b087d in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3 0x00e97548 in ?? () from /usr/lib/libmlt.so.1
#4 0x006d380e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#5 0x049a38de in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 3 (Thread 0xacdf7b70 (LWP 2090)):
#0 0x0023a422 in __kernel_vsyscall ()
#1 0x04995c96 in poll () from /lib/tls/i686/cmov/libc.so.6
#2 0x060a4cc2 in ?? () from /usr/lib/libpulse.so.0
#3 0x06091e09 in pa_mainloop_poll () from /usr/lib/libpulse.so.0
#4 0x06093c23 in pa_mainloop_iterate () from /usr/lib/libpulse.so.0
#5 0x06093cf4 in pa_mainloop_run () from /usr/lib/libpulse.so.0
#6 0x060a4bc3 in ?? () from /usr/lib/libpulse.so.0
#7 0x01d93ac2 in ?? () from /usr/lib/libpulsecommon-0.9.19.so
#8 0x006d380e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#9 0x049a38de in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 2 (Thread 0xb0ad8b70 (LWP 2092)):
#0 0x0023a422 in __kernel_vsyscall ()
#1 0x04995c96 in poll () from /lib/tls/i686/cmov/libc.so.6
#2 0x03c60d80 in ?? () from /usr/lib/libxcb.so.1
#3 0x03c612eb in ?? () from /usr/lib/libxcb.so.1
#4 0x03c61687 in xcb_writev () from /usr/lib/libxcb.so.1
#5 0x035bb2e9 in _XSend () from /usr/lib/libX11.so.6
#6 0x035a7a8d in ?? () from /usr/lib/libX11.so.6
#7 0x035a6ed4 in ?? () from /usr/lib/libX11.so.6
#8 0x035a7c5a in XPutImage () from /usr/lib/libX11.so.6
#9 0x01c53f9d in ?? () from /usr/lib/libSDL-1.2.so.0
#10 0x01c59958 in ?? () from /usr/lib/libSDL-1.2.so.0
#11 0x01c4bbfe in SDL_UpdateRects () from /usr/lib/libSDL-1.2.so.0
#12 0x01c4bd44 in SDL_UpdateRect () from /usr/lib/libSDL-1.2.so.0
#13 0x01c4c222 in SDL_Flip () from /usr/lib/libSDL-1.2.so.0
#14 0x093fe5c0 in ?? () from /usr/lib/mlt/libmltsdl.so
#15 0x006d380e in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#16 0x049a38de in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb7861700 (LWP 1757)):
#0 0x0023a422 in __kernel_vsyscall ()
#1 0x04995c96 in poll () from /lib/tls/i686/cmov/libc.so.6
#2 0x03c60d80 in ?? () from /usr/lib/libxcb.so.1
#3 0x03c629d2 in xcb_wait_for_reply () from /usr/lib/libxcb.so.1
#4 0x035bb506 in _XReply () from /usr/lib/libX11.so.6
#5 0x03598519 in XGetImage () from /usr/lib/libX11.so.6
#6 0x0899476b in QX11PixmapData::toImage (this=0xa8d9160) at image/qpixmap_x11.cpp:1428
#7 0x08982b3b in QPixmap::toImage (this=0xb679898) at image/qpixmap.cpp:447
#8 0x089b5b06 in QTexturedBrushData::image (this=0xad036ac) at painting/qbrush.cpp:209
#9 QBrush::textureImage (this=0xad036ac) at painting/qbrush.cpp:775
#10 0x08a5a36b in QSpanData::setup (this=0xad03868, brush=..., alpha=256) at painting/qpaintengine_raster.cpp:5108
#11 0x08a5b4a2 in QRasterPaintEngine::updateBrush (this=0xb052cf0, brush=...) at painting/qpaintengine_raster.cpp:872
#12 0x08a60007 in QRasterPaintEngine::ensureBrush (this=0xb052cf0, path=...) at painting/qpaintengine_raster_p.h:265
#13 QRasterPaintEngine::ensureBrush (this=0xb052cf0, path=...) at painting/qpaintengine_raster_p.h:267
#14 QRasterPaintEngine::drawPath (this=0xb052cf0, path=...) at painting/qpaintengine_raster.cpp:1930
#15 0x089ebc0f in QPainter::drawPath (this=0xbfd2a6ac, path=...) at painting/qpainter.cpp:3214
#16 0x089e609a in QPainterPrivate::draw_helper (this=0xb220a90, originalPath=..., op=) at painting/qpainter.cpp:451
#17 0x089e90e3 in QPainter::drawRects (this=0xbfd2bb08, rects=0xbfd2a818, rectCount=1) at painting/qpainter.cpp:3355
#18 0x089eb491 in QPainter::drawRect (this=0xbfd2bb08, r=..., pm=..., sr=...) at ../../include/QtGui/../../src/gui/painting/qpainter.h:604
#19 QPainter::drawPixmap (this=0xbfd2bb08, r=..., pm=..., sr=...) at painting/qpainter.cpp:5357
#20 0x081438bc in ClipItem::paint (this=0xa8e49b8, painter=0xbfd2bb08, option=0xa9ccdc0) at /build/buildd/kdenlive-0.7.5/src/clipitem.cpp:684
#21 0x08edb9cd in _q_paintItem (item=0xa8e49c0, painter=, option=0xa9ccdc0, widget=0xa9867f0, useWindowOpacity=true, painterStateProtection=true)
at graphicsview/qgraphicsscene.cpp:4602
#22 0x08ee6de1 in QGraphicsScenePrivate::drawItemHelper (this=0xa9a8780, item=0xa8e49c0, painter=0xbfd2bb08, option=0xa9ccdc0, widget=0xa9867f0, painterStateProtection=)
at graphicsview/qgraphicsscene.cpp:4699
#23 0x08ee91f4 in QGraphicsScene::drawItems (this=0xa989ea0, painter=0xbfd2bb08, numItems=2, items=0xae4abb0, options=0xa9ccdc0, widget=0xa9867f0) at graphicsview/qgraphicsscene.cpp:5102
#24 0x08ef6ebc in QGraphicsView::drawItems (this=0xa98b050, painter=0xbfd2bb08, numItems=2, items=0xae4abb0, options=0xa9ccdc0) at graphicsview/qgraphicsview.cpp:3777
#25 0x08f03bde in QGraphicsView::paintEvent (this=0xa98b050, event=0xbfd2c0c4) at graphicsview/qgraphicsview.cpp:3528
#26 0x08908dd4 in QWidget::event (this=0xa98b050, event=0xbfd2c0c4) at kernel/qwidget.cpp:7687
#27 0x08cb8633 in QFrame::event (this=0xa98b050, e=0xbfd2c0c4) at widgets/qframe.cpp:559
#28 0x08d57494 in QAbstractScrollArea::viewportEvent (this=0x1, e=0x1) at widgets/qabstractscrollarea.cpp:962
#29 0x08f0151f in QGraphicsView::viewportEvent (this=0xa98b050, event=0xbfd2c0c4) at graphicsview/qgraphicsview.cpp:2919
#30 0x08d59a95 in QAbstractScrollAreaPrivate::viewportEvent (this=0xa91a220, o=0xa9867f0, e=0xbfd2c0c4) at widgets/qabstractscrollarea_p.h:100
#31 QAbstractScrollAreaFilter::eventFilter (this=0xa91a220, o=0xa9867f0, e=0xbfd2c0c4) at widgets/qabstractscrollarea_p.h:111
#32 0x00fe383a in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=0xa1328d0, receiver=0xa9867f0, event=0xbfd2c0c4) at kernel/qcoreapplication.cpp:726
#33 0x088b3f2c in QApplicationPrivate::notify_helper (this=0xa1328d0, receiver=0xa9867f0, e=0xbfd2c0c4) at kernel/qapplication.cpp:4052
#34 0x088bb5ca in QApplication::notify (this=0xbfd2ccfc, receiver=0xa9867f0, e=0xbfd2c0c4) at kernel/qapplication.cpp:4021
#35 0x0091abfa in KApplication::notify (this=0xbfd2ccfc, receiver=0xa9867f0, event=0xbfd2c0c4) at ../../kdeui/kernel/kapplication.cpp:302
#36 0x00fe46cb in QCoreApplication::notifyInternal (this=0xbfd2ccfc, receiver=0xa9867f0, event=0xbfd2c0c4) at kernel/qcoreapplication.cpp:610
#37 0x08910e25 in QCoreApplication::sendSpontaneousEvent (this=0xa986808, pdev=0xa27f42c, rgn=..., offset=..., flags=, sharedPainter=0x0, backingStore=0xa27f440)
at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#38 QWidgetPrivate::drawWidget (this=0xa986808, pdev=0xa27f42c, rgn=..., offset=..., flags=, sharedPainter=0x0, backingStore=0xa27f440) at kernel/qwidget.cpp:5079
#39 0x08a9f233 in QWidgetBackingStore::sync (this=0xa27f440) at painting/qbackingstore.cpp:1261
#40 0x08902116 in QWidgetPrivate::syncBackingStore (this=0xa24d600) at kernel/qwidget.cpp:1603
#41 0x08909215 in QWidget::event (this=0xa2895b0, event=0xb919b78) at kernel/qwidget.cpp:7827
#42 0x08cd6297 in QMainWindow::event (this=0xa2895b0, event=0xb919b78) at widgets/qmainwindow.cpp:1399
#43 0x00a00dc4 in KMainWindow::event (this=0xa2895b0, ev=0xb919b78) at ../../kdeui/widgets/kmainwindow.cpp:1094
#44 0x00a4730f in KXmlGuiWindow::event (this=0xa2895b0, ev=0xb919b78) at ../../kdeui/xmlgui/kxmlguiwindow.cpp:131
#45 0x088b3f54 in QApplicationPrivate::notify_helper (this=0xa1328d0, receiver=0xa2895b0, e=0xb919b78) at kernel/qapplication.cpp:4056
#46 0x088bb5ca in QApplication::notify (this=0xbfd2ccfc, receiver=0xa2895b0, e=0xb919b78) at kernel/qapplication.cpp:4021
#47 0x0091abfa in KApplication::notify (this=0xbfd2ccfc, receiver=0xa2895b0, event=0xb919b78) at ../../kdeui/kernel/kapplication.cpp:302
#48 0x00fe46cb in QCoreApplication::notifyInternal (this=0xbfd2ccfc, receiver=0xa2895b0, event=0xb919b78) at kernel/qcoreapplication.cpp:610
#49 0x00fe52b2 in QCoreApplication::sendEvent (receiver=0x0, event_type=0, data=0xa11d0c8) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#50 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0xa11d0c8) at kernel/qcoreapplication.cpp:1247
#51 0x00fe547d in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1140
#52 0x0100f3ff in QCoreApplication::sendPostedEvents (s=0xa134d10) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#53 postEventSourceDispatch (s=0xa134d10) at kernel/qeventdispatcher_glib.cpp:210
#54 0x07a85e88 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#55 0x07a89730 in ?? () from /lib/libglib-2.0.so.0
#56 0x07a89863 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#57 0x0100f02c in QEventDispatcherGlib::processEvents (this=0xa11ccc8, flags=...) at kernel/qeventdispatcher_glib.cpp:327
#58 0x08954be5 in QGuiEventDispatcherGlib::processEvents (this=0xa11ccc8, flags=...) at kernel/qguieventdispatcher_glib.cpp:202
#59 0x00fe2c79 in QEventLoop::processEvents (this=0xbfd2cc54, flags=) at kernel/qeventloop.cpp:149
#60 0x00fe30ca in QEventLoop::exec (this=0xbfd2cc54, flags=...) at kernel/qeventloop.cpp:201
#61 0x00fe553f in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#62 0x088b3dd7 in QApplication::exec () at kernel/qapplication.cpp:3525
#63 0x0807d4ed in main (argc=5, argv=0xbfd2cee4) at /build/buildd/kdenlive-0.7.5/src/main.cpp:89

Hi,

Although I had no crash, this could help:
http://kdenlive.org/forum/playback-pulseaudio-and-cracking-stuttering-sound