[Bug 747204] New: audiofirfilter creates strange noise for smaller filter kernels and even default kernel

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=747204

            Bug ID: 747204
           Summary: audiofirfilter creates strange noise for smaller
                    filter kernels and even default kernel
    Classification: Platform
           Product: GStreamer
           Version: unspecified
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-plugins-good
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: tobiaswenig at yahoo.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

using audiofirfilter creates strange distorted noises when setting no filter at
all (defauilt identity filter is set [1.0]).
I tested with many smaller filters and result was allways same. It seems to
work for bigger filter kernels (used DRC filters of ~31000 taps which worked
fine). It is reproducible on Ubuntu 14.04 also on commandline:

gst-launch-1.0 filesrc location=/path/to/file \
  ! decodebin \
  ! audioconvert \
  ! audiofirfilter \
  ! autoaudiosink

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