Adobe Director Plugins are called Xtras.
Here is a list of Xtras for Adobe Director, available on this site.
asFFT : Spectrum analysis on live sound input
asPitchDetect Xtra : pitch detection on live sound input
asMultiChannelAudio Xtra: audio output on more than 2 channels
asUDPXtra : UDP communication
asFFTFile Xtra : Spectrum analysis on audio files
fluidXtra : sound synthesis using the fluidsynth library
MouseWheel Xtra : reading the mouse wheel
Bytes Xtra : a bytes data format