Robust sound onset detection using leaky integrate-and-fire neurons with depressing synapses.
A biologically inspired technique for detecting onsets in sound is presented. Outputs from a cochlea-like filter are spike coded, in a way similar to the auditory nerve (AN). These AN-like spikes are presented to a leaky integrate-and-fire neuron through a depressing synapse. Onsets are detected with essentially zero latency relative to these AN spikes. Onset detection results for a tone burst, musical sounds and the DARPA/NIST TIMIT speech corpus are presented.
Smith
Leslie S
LS
Department of Computing Science and Mathematics, University of Stirling, Stirling FK9 4LA, UK. lss@cs.stir.ac.uk
Fraser
Dagmar S
DS
D000200:Action Potentials / Q000502:physiology*; D000818:Animals; D001306:Auditory Pathways / Q000502:physiology; D001307:Auditory Perception / Q000502:physiology*; D001921:Brain / Q000502:physiology; D003051:Cochlea / Q000502:physiology*; D003056:Cochlear Nerve / Q000502:physiology*; D006801:Humans; D008959:Models, Neurological; D009433:Neural Inhibition / Q000502:physiology; D009475:Neurons, Afferent / Q000502:physiology*; D010897:Pitch Discrimination / Q000502:physiology; D011930:Reaction Time / Q000502:physiology; D013067:Speech Perception / Q000502:physiology; D013569:Synapses / Q000502:physiology; D009435:Synaptic Transmission / Q000502:physiology*