15. The system of claim 11 , wherein performing an optimization of the position of the audible computer-generated seed hotsound in the feature space comprises: identifying clusters of hotword training data in the feature space by performing a clustering algorithm; and performing a gradient descent algorithm to gradually modify the position of the audible computer-generated seed hotsound such that the position of the audible computer-generated seed hotsound moves further away from nearby clusters of hotword training data.
16. The system of claim 15 , wherein the clusters of hotword training data correspond to audible computer-generated sounds that will cause false activations for the audible computer-generated seed hotsound.