Sound source localization method based on acoustic bionic cochlea basal membrane

• Main Authors: XU XIAODONG, SU ZUQIANG, ZHANG YI, LUO JIUFEI, XIAO HONG, HUANG CHAO
• Format: Patent
• Language: Chinese; English
• Published: 11.05.2016
• Subjects: ACOUSTICS; ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; MUSICAL INSTRUMENTS; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; SPEECH ANALYSIS OR SYNTHESIS; SPEECH OR AUDIO CODING OR DECODING; SPEECH OR VOICE PROCESSING; SPEECH RECOGNITION; TESTING

The invention provides a sound source localization method based on an acoustic bionic cochlea basal membrane, and relates to the field of speech recognition. According to the method, sound source localization is realized by employing an ear cocktail effect, the expandability is high, in the noise environment, compared with the conventional sound source localization method, the localization effect of the method is better, and the robustness of a sound source localization system is better. Spectrum analysis of sound source signals including noises is conducted via a cochlea basal membrane model, signal conversion is performed via an inner hair cell model on the cochlea basal membrane, cell superposition is performed via nerve fibers on the inner hair cells, voice information extraction is performed via a superior olivary nucleus model, and finally the localization of a sound source is realized.