
content of iem_roomsim Release 1.21 from March 2018


----------------- block~, room-simulation, delay~ stuff -------------------------------
block_delay~		 delays a signal by blocksize samples
block_lp1~		 this lowpass recursive filter forms the current spectrum bin by bin isolated to the previous 
					spectrum bin by bin (time shape filtering of spectrum)
block_peak_env~		 this peak envelope recursive filter forms the current spectrum bin by bin isolated to the previous 
					spectrum bin by bin (time shape filtering of spectrum)
cart2del_damp_2d	 calculates the delay time, distance damping factor, azimuth angle of an acoustical mirror source up to the 2nd reflections
cart2del_damp_3d	 calculates the delay time, distance damping factor, elevation and azimuth angles of an acoustical mirror source up to the 2nd reflections 
n_delay1p_line~		 delays a signal to n taps with no interpolation
n_delay2p_line~		 delays a signal to n taps with a 2-point interpolation			 


postscriptum:

"cart2del_damp_2d" and "cart2del_damp_3d".

this are 2 mirror image source method rendering objects, they calculate the radius distance,
the delay time and the spheric coordinates in case of 3D or the polar coordinates in case of 2D
of all the first and second reflections between an subjekt and an object in a cuboid room.