Two or more microphones receive acoustic signals and generate audio
signals that are processed to determine what portion of the audio signals
result from (i) incoherence between the audio signals and/or (ii)
audio-signal sources having propagation speeds different from the
acoustic signals. The audio signals are filtered to reduce that portion
of one or more of the audio signals. The present invention can be used to
reduce turbulent wind-noise resulting from wind or other airjets blowing
across the microphones. Time-dependent phase and amplitude differences
between the microphones can be compensated for based on measurements made
in parallel with routine audio system processing.