 Extension
Extensiondirrectional filtering of a higher order Ambisonic sound field
pseudo Ugen method returning Ugens based on Ambisonics order provided through the first argument.
| timer_man | 0: timmer mode to crossfade durring the time sepcified by "crossfade" when "on" is switched. 1: manual mode to manually crossfade according to the "focus" argument (default: plane). | 
| order | Ambisonics order 1-5. | 
| in | b-format as channel array. | 
| az | azimuth angle of beam direction in degree (-pi to pi). | 
| ele | elevation angle of beam direction in degree (-pi * 0.5 to pi * 0.5). | 
| level | level in dB (default 0). | 
| on | 0: no dirrectionnal filtering applied. 1: apply dirrectional filtering (only relevant if timer_man is set to 0) | 
| crossfade | crossfade time in seconds from 0.1 to 10 between filtered and unfiltered signal wen "on" is switched (only relevant if timer_man is set to 0). | 
| focus | manualy crossfade from 0 to 1 between no dirrectional filtering and fully filtered signal. (only relevant if timer_man is set to 1) | 
b-format as channel array.