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Fig. 26 — Film showing tiie effect upon the audio addition of unequalized delay. 

 Both MUSA branches were steered at the same angle, — that of the major wave 

 shown. Film 1 shows no delay added and since each branch receives the same wave 

 the audio outputs add perfectly. Films 2, 3, and 4 show the effect of adding 340, 680, 

 and 2700 microseconds delay, respectively. 



