Fig. 6: Application of the WS for voice recognition and micro-vibration measurements. | Microsystems & Nanoengineering

Fig. 6: Application of the WS for voice recognition and micro-vibration measurements.

From: High sensitivity acoustic flow sensing based on bio-inspired web-like structure for panoramic acoustic perception

Fig. 6

Pronunciation of a female speaker recorded by the reference microphone (a) and the WAS (b). Pronunciation of a male speaker recorded by reference microphone (c) and the WAS (d). e Schematic diagram of the micro-vibration measurement, where knocking and vibration are performed separately. Time-domain waveforms (f) and spectrograms (g) of the response of the WS to finger-knocking at different distances. Time-domain waveforms (h) and corresponding frequency-domain (i) of the response of the WS to vibration of the phone

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