Roger writes: There was no > background noise (hiss, hum, etc) indicating that it had been > sucked up out of the mud. In a sports arena, the crowd "noise" is actually at a measurable ambient level. If the primary audio (mic) goes silent, depending upon the release time and how many dB the processor/chain is fed, even that low ambience will fill the void. Could Osgood be a muddy feed? Bill O'Neill