Works on dominant speaker detection for the purposes of Jitsi Videobridge.

src/org/jitsi/impl/neomedia/ActiveSpeakerDetectorImpl.java

src/org/jitsi/impl/neomedia/BasicActiveSpeakerDetector.java

...mpl/neomedia/transform/csrc/CsrcAudioLevelDispatcher.java

...tsi/impl/neomedia/transform/csrc/CsrcTransformEngine.java

...tsi/impl/neomedia/transform/csrc/SsrcTransformEngine.java

...jitsi/service/neomedia/AbstractActiveSpeakerDetector.java

src/org/jitsi/service/neomedia/ActiveSpeakerDetector.java

.../service/neomedia/event/ActiveSpeakerChangedListener.java