SFS Toolbox 1.0.0-beta

New 3D version of the Toolbox. The Toolbox works now completely in the 3D space and comes with 2D, 2.5D and 3D driving functions for WFS, NFC-HOA and SDM.

NEWS:

- bandpass() can now handle arbritrary frequency limits
- sphbesselh_zeros() comes now with precomputed zeros for an order up to
  1000
- renamed wave_field_* functions to sound_field_*
- the order for NFC-HOA can now be set manually via conf.nfchoa.order
- several performance improvements
- added missing driving functions for WFS and NFC-HOA
- added convolution() which is faster than conv and can handle
  multidimensional signals
- changed default plotting style of loudspeakers to
  conf.plot.realloudspeaker=false
- hann_window() now uses (2*n+1) instead of (2*n) to generate the window
- replaced the input parameter L by conf.secondary_sources.size
- the aliasing frequency is now calculated by the mean distance between the
  given secondary sources
- added nearest neighbour search and 3D interpolation to get_ir()
- moved the tapering window into x0(:,7), added new function
  secondary_source_tapering to achieve this
- added a seventh column to x0 which includes integrational weights
- added extra directory for SSR renderer functions
- added 3D HRTF extrapolation
- changed array configuration to use number of secondary sources instead of
  distance between them
- changed SFS_config to use substructs like conf.secondary_sources.*
- added the possibility to calculate the wave field for a arbritrary
  positioned plane in 3D
- added 3D WFS functions
- make the Toolbox work in 3D, which brakes backwards compability!
- now all monochromatic functions have a time_domain counterpart
- reordered the argouts for the wave field functions; now P is always the
  first argout
- automatically plotting of the wave fields if no argouts are wanted
- changed direction of focused source from the conf.xref vector directly
  into xs. For a focused source xs is now [1x6]