  We present results of our preliminary analysis of acoustically active X-class
flare of September 7, 2011. We report two acoustic sources detected via
acoustic holography and verified by finding a ridge in time-distance diagrams.
We compare the directional information extracted from time-distance and
acoustic holography, showing a good agreement in this case. We report that the
direction where amplitude of the wave-front is the largest lies through the
strong magnetic field and sunspot, suggesting that absorption of the acoustic
wave power by magnetic field can be ruled out as a wave anisotropy mechanism in
this case.
