Revert "added resetAverageFramesAvailable(), removed if (randFloat...)"

This reverts commit af3e2f10d73c3713d4fa3766b6e3789cfc8ae1e7.
Revert "added additional audiostreamstats, added dropped audio insertion"

This reverts commit 130267fa324fc27f4ec89779a1498abd9dcf7ed5.