#0  0x00007fffb0b48fb0 in FiltFilt::process (this=0x7fffd0024040, 
    src=0x7fffd0024910, dst=0x7fffd0024950, length=6)
    at ../libs/qm-dsp/dsp/signalconditioning/FiltFilt.cpp:84
#1  0x00007fffb0b4824f in DFProcess::process (this=0x7fffd00248a0, 
    src=0x7fffd0024a10, dst=0x7fffd00249d0)
    at ../libs/qm-dsp/dsp/signalconditioning/DFProcess.cpp:82
#2  0x00007fffb0b4211f in PeakPicking::process (this=0x7fffd9ccf3c0, 
    src=0x7fffd0024a10, len=6, onsets=std::vector of length 0, capacity 0)
    at ../libs/qm-dsp/dsp/onsets/PeakPicking.cpp:74
#3  0x00007fffb0d965e2 in OnsetDetector::getRemainingFeatures (
    this=0x7fffd0022030) at ../libs/vamp-plugins/OnsetDetect.cpp:456
#4  0x00007fffee16bd95 in _VampPlugin::Vamp::PluginAdapterBase::Impl::getRemainingFeatures(_VampPlugin::Vamp::Plugin*) ()
   from /usr/lib/x86_64-linux-gnu/libvamp-sdk.so.2
#5  0x00007fffedf35fd0 in _VampHost::Vamp::PluginHostAdapter::getRemainingFeatures() () from /usr/lib/x86_64-linux-gnu/libvamp-hostsdk.so.3
#6  0x00007fffedf51475 in _VampHost::Vamp::HostExt::PluginWrapper::getRemainingFeatures() () from /usr/lib/x86_64-linux-gnu/libvamp-hostsdk.so.3
#7  0x00007fffedf51475 in _VampHost::Vamp::HostExt::PluginWrapper::getRemainingFeatures() () from /usr/lib/x86_64-linux-gnu/libvamp-hostsdk.so.3
#8  0x00007fffedf51475 in _VampHost::Vamp::HostExt::PluginWrapper::getRemainingFeatures() () from /usr/lib/x86_64-linux-gnu/libvamp-hostsdk.so.3
#9  0x00007ffff63f096c in ARDOUR::AudioAnalyser::analyse (this=0x7fffd9ccf9d0, 
    path="/home/olivier/Musique/echo/analysis/23072.qm-onset", 
    src=0x7fff981e8110, channel=0) at ../libs/ardour/audioanalyser.cc:150
#10 0x00007ffff69df4b4 in ARDOUR::TransientDetector::run (this=0x7fffd9ccf9d0, 
    path="/home/olivier/Musique/echo/analysis/23072.qm-onset", 
    src=0x7fff981e8110, channel=0, results=...)
    at ../libs/ardour/transient_detector.cc:55
#11 0x00007ffff638e381 in ARDOUR::Analyser::analyse_audio_file_source (src=...)
    at ../libs/ardour/analyser.cc:115
#12 0x00007ffff638e1fc in ARDOUR::Analyser::work ()
    at ../libs/ardour/analyser.cc:102
#13 0x00007ffff638dee4 in analyser_work () at ../libs/ardour/analyser.cc:52
#14 0x0000000000e4898d in sigc::pointer_functor0<void>::operator() (
    this=0x19f7648) at /usr/include/sigc++-2.0/sigc++/functors/ptr_fun.h:77
#15 0x0000000000e45dde in sigc::adaptor_functor<sigc::pointer_functor0<void> >::operator() (this=0x19f7640)
    at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:256
#16 0x0000000000e41e67 in sigc::internal::slot_call0<sigc::pointer_functor0<void>, void>::call_it (rep=0x19f7610)
    at /usr/include/sigc++-2.0/sigc++/functors/slot.h:115
#17 0x00007ffff3f1215d in ?? ()
   from /usr/lib/x86_64-linux-gnu/libglibmm-2.4.so.1
#18 0x00007ffff39cebc5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007fffef970464 in start_thread (arg=0x7fffd9cd0700)
#20 0x00007fffec95330d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109