SONOpenNewFile

  SONOPENNEWFILE (obsolete) creates a new SON file and returns the handle

  HANDLE=SONOPENNEWFILE(STR, EXTRABYTES)
  where STR is the file name (with path). EXTRABYTES sets the size of the
  optional user data area

  Author:Malcolm Lidierth
  Matlab SON library:
  Copyright © The Author & King's College London 2005-2006