Long range standoff speaker identification using laser Doppler vibrometer
Existing studies on speaker identification are mostly performed on telephone and microphone speech data, which are collected with subjects close to the sensor. For the first time, this study reports long range standoff automatic speaker identification experiments using laser Doppler vibrometer (LDV) sensor. The LDV sensor modality has the potential to extend the speech acquisition standoff distance far beyond microphone arrays to enable new capabilities in automatic audio and speech intelligence, surveillance, and reconnaissance (ISR) Five LDV speech corpuses, each consists of 630 speakers, are collected from the vibrations of a glass window, a metal plate, a plastic box, a wood slate, and a concrete wall, using Polytec LDV model OFV 505. The distance from the LDV sensor to the vibration targets is 50 feet. State of the art i vector speaker identification experiments on this LDV speech data show great promise of this LDV long range acoustic sensing modality.
2016 IEEE 8th International Conference on Biometrics Theory, Applications and Systems (BTAS)