function sound(x, fs)
  if(nargin == 1 || isempty(fs))
    fs = 8000;
  endif
  if(rows(x) != length(x))
    x = x'
  endif
  if(playrec('isInitialised'))
    playrec('reset');
  endif

  playrec('init', fs, 3, 1);

  playrec('play', x, 1:size(x,2));
endfunction