This patch contains improvements to TDFB setup scripts and examples
those are related to sound direction estimation. The changes are add
of 15 degree angle spacing to enum control, add of rotated noise sound
create for sound direction testing in simulated acoustics.
The example line, circular, and xyz array scripts are updated for single
dual mono beam that is controllable in 15 degree or 30 degree steps. All
the two beam design examples are moved into example_two_beams.m.
The patch also contains noise field covariance matrix diagonal load
increase to -40 dB. I noticed uneven frequency response in some
designs due to numerical instability. The increased diagonal load makes
the automatic design procedure more robust at minimal hit in noise
suppression performance.
Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
Seppo Ingalsuo