Adaptive system for recognition of multi-channel amplitude varying signals

A signal recognition system is provided which is initially capable of being programmed to learn how to recognize a signal. Using as signal inputs amplitude varying signals representative of different frequency components of a single audio channel, a frequency discriminator is used to provide data on which to train a State Machine Block in a feedback relationship with an Adjustment Block. As the trainable system is trained, the value of parameters in the State Machine Block is adjusted to modify system behavior. After the system has been fully trained, the resultant database of states created as a result of training is exported to a system with lesser capability, namely a system adapted for mere recognition of the input signals.