PUSHINGTHE FREQUENCYLIMITSOFSPHERICALMICROPHONE ARRAYS

HOA ENCODINGUSINGSPHERICAL MICROPHONE ARRAYS Spherical microphone arrays areauseful tool fornumerous applications, suchasspatial audio capture andbeamforming. HighOrderAmbisonics isa3daudiocapture/reproduction However, these sensor arrays areknowntohavealimitedmethodbasedontheideathat, inthefrequency domain, a frequency range, duetopoordirectivity atlowfrequencies soundfield canbewritten asfollows andspatial aliasing athighfrequencies. Inthis paper, we study twomethods aiming atenhancing thefrequency range 00 m