Thread 1 (Thread 0xb45ba720 (LWP 1918)):
#0  0xb7fe1424 in __kernel_vsyscall ()
#1  0xb4ecb941 in raise () from /lib/libc.so.6
#2  0xb4ecee42 in abort () from /lib/libc.so.6
---Type <return> to continue, or q <return> to quit---
#3  0xb4ec48e8 in __assert_fail () from /lib/libc.so.6
#4  0xb5195549 in ?? () from /usr/lib/libasound.so.2
#5  0xb51955b9 in ?? () from /usr/lib/libasound.so.2
#6  0xb518e553 in snd_pcm_hw_params_set_format () from /usr/lib/libasound.so.2
#7  0xb521b2f1 in ?? () from /usr/lib/libportaudio.so.2
#8  0xb521c40d in ?? () from /usr/lib/libportaudio.so.2
#9  0xb521d379 in ?? () from /usr/lib/libportaudio.so.2
#10 0xb5213b2a in Pa_OpenStream () from /usr/lib/libportaudio.so.2
#11 0x08228585 in ?? ()
#12 0x082258aa in ?? ()
#13 0x08084cee in ?? ()
#14 0x0826fea3 in ?? ()
#15 0xb539f8ca in QMetaObject::metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib/libQtCore.so.4
#16 0xb53b26ad in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#17 0xb5b85e47 in QDialogButtonBox::accepted() () from /usr/lib/libQtGui.so.4
#18 0xb5b860d8 in ?? () from /usr/lib/libQtGui.so.4
#19 0xb5b87d46 in QDialogButtonBox::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/libQtGui.so.4
#20 0xb539f8ca in QMetaObject::metacall(QObject*, QMetaObject::Call, int, void**) () from /usr/lib/libQtCore.so.4
#21 0xb53b26ad in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/libQtCore.so.4
#22 0xb5e90019 in QAbstractButton::clicked(bool) () from /usr/lib/libQtGui.so.4
#23 0xb5b4fff9 in ?? () from /usr/lib/libQtGui.so.4
#24 0xb5b516f4 in ?? () from /usr/lib/libQtGui.so.4
#25 0xb5b519ae in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () from /usr/lib/libQtGui.so.4
#26 0xb577fe08 in QWidget::event(QEvent*) () from /usr/lib/libQtGui.so.4
#27 0xb5b4fe9e in QAbstractButton::event(QEvent*) () from /usr/lib/libQtGui.so.4
#28 0xb5bfdc22 in QPushButton::event(QEvent*) () from /usr/lib/libQtGui.so.4
#29 0xb5721fdc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#30 0xb5728c2e in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#31 0xb5399b3b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQtCore.so.4
#32 0xb5727094 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from /usr/lib/libQtGui.so.4
#33 0xb57b5d10 in ?? () from /usr/lib/libQtGui.so.4
#34 0xb57b5151 in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib/libQtGui.so.4
#35 0xb57e436a in ?? () from /usr/lib/libQtGui.so.4
#36 0xb48bb855 in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#37 0xb48bf668 in ?? () from /lib/libglib-2.0.so.0
#38 0xb48bf848 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#39 0xb53c8565 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#40 0xb57e3be5 in ?? () from /usr/lib/libQtGui.so.4
#41 0xb5398609 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#42 0xb5398a8a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#43 0xb539d00f in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#44 0xb5720e07 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#45 0x0811ac5a in ?? ()
#46 0xb4eb7ce7 in __libc_start_main () from /lib/libc.so.6
#47 0x0806ab81 in ?? ()
(gdb)