
test.wav was generated using:

  gst-launch-0.10 \
      audiotestsrc samplesperbuffer=128 num-buffers=1 wave=saw \
          freq=0.8405 ! \
      audio/x-raw-int,width=16,depth=16,signed=true,channels=1 ! \
      wavenc ! \
      filesink location=test.wav
