Title :
Phase-locking by integral pulse frequency modulation and the information of the missing fundamental in pulse trains
Author :
Matsuoka, Takahide ; Ono, Yoshihito
Author_Institution :
Fac. of Eng., Utsunomiya Univ., Japan
fDate :
29 Oct-1 Nov 1998
Abstract :
We showed theoretically that a synchronous phenomenon occurs (i.e. 1 synchronous pulse per n periods of an input periodic signal occurs) by integral pulse frequency modulation with a refractory period. It is investigated how the information of the missing fundamental of a complex sound is contained in the phase-locked output pulse train from a primary auditory nerve which performs integral pulse frequency modulation. It has been found that the information explicitly appears in the aggregated autocorrelogram of the pulse trains
Keywords :
ear; neurophysiology; pulse frequency modulation; speech processing; synchronisation; aggregated autocorrelogram; cochlea model; complex sound; integral pulse frequency modulation; missing fundamental; phase-locking; primary auditory nerve; pulse trains; refractory period; synaptic weight; synchronous phenomenon; Acoustic refraction; Biomembranes; Cities and towns; Frequency modulation; Frequency synchronization; Hair; Neurons; Pulse generation; Pulse modulation; Signal generators;
Conference_Titel :
Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE
Conference_Location :
Hong Kong
Print_ISBN :
0-7803-5164-9
DOI :
10.1109/IEMBS.1998.746170
