Comment 2 for bug 1594169

Backtrace:

terminate called after throwing an instance of 'std::bad_alloc'
  what(): std::bad_alloc

Program received signal SIGABRT, Aborted.
[Switching to Thread 0x7fff90834700 (LWP 5363)]
0x00007ffff0c2dc37 in __GI_raise (sig=sig@entry=6)
    at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
56 ../nptl/sysdeps/unix/sysv/linux/raise.c: Datei oder Verzeichnis nicht gefunden.
(gdb) bt
#0 0x00007ffff0c2dc37 in __GI_raise (sig=sig@entry=6)
    at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
#1 0x00007ffff0c31028 in __GI_abort () at abort.c:89
#2 0x00007ffff1539c1d in __gnu_cxx::__verbose_terminate_handler() ()
   from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#3 0x00007ffff1537ca6 in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#4 0x00007ffff1537cf1 in std::terminate() ()
   from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#5 0x00007ffff1537f56 in __cxa_rethrow ()
   from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#6 0x0000000000aeabc0 in Mixxx::SoundSource::open (this=0x7fff7c003000,
    audioSrcCfg=...) at src/sources/soundsource.cpp:31
#7 0x0000000000b0f93a in SoundSourceProxy::openAudioSource (
    this=this@entry=0x7fff90833ce0, audioSrcCfg=...)
    at src/sources/soundsourceproxy.cpp:580
#8 0x00000000004cd8e1 in AnalyzerQueue::run (this=0x3468af0)
    at src/analyzer/analyzerqueue.cpp:325
#9 0x00007ffff4ec232f in QThreadPrivate::start (arg=0x3468af0)
    at thread/qthread_unix.cpp:349
#10 0x00007ffff2c8f184 in start_thread (arg=0x7fff90834700)
    at pthread_create.c:312
#11 0x00007ffff0cf137d in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111