ORLANDO, Florida – Mixing sound for houses of worship poses a unique set of challenges, particularly when services involve large choirs, musical ensembles and multiple worship leaders. These scenarios feature multiple open or active microphones, which leads to microphone spill, increased background noise and greater possibility of system feedback. As each active microphone is added to the mix, intelligibility decreases while unpleasant comb filter effects (phase distortion) become more common.  Manual fader control can miss cues when speakers speak unexpectedly, plus changes in fader positions can quickly lead to disturbing changes of the total ambience/noise level in the mix.  HARMAN's Studer VistaMix is a software upgrade for its range of Vista digital mixing consoles that offers a solution to these problems. VistaMix automatic microphone mixing removes the need for an operator to manually adjust all the faders all the time, leaving the microphones of talking participants open, while closing the microphones...