Laser Meager Listener: A Scientific Exploration of Laser-based Speech Eavesdropping in Commercial User Space
Frequency Spectrum Graphs of Collected Vibration Signals
Direct-Contact Scenario:
Paper Cup:
Loudspeaker-Aerial (Normal SPL)
Loudspeaker-Aerial (Loud SPL)
Loudspeaker-Same Surface (Normal SPL)
Loudspeaker-Same Surface (Loud SPL)
Plastic Cup:
Loudspeaker-Aerial (Normal SPL)
Loudspeaker-Aerial (Loud SPL)
Loudspeaker-Same Surface (Normal SPL)
Loudspeaker-Same Surface (Loud SPL)
Styrofoam Cup:
Loudspeaker-Aerial (Normal SPL)
Loudspeaker-Aerial (Loud SPL)
Loudspeaker-Same Surface (Normal SPL)
Loudspeaker-Same Surface (Loud SPL)
Glass-Barrier Scenario:
Paper Cup:
Loudspeaker-Aerial (Normal SPL)
Loudspeaker-Aerial (Loud SPL)
Loudspeaker-Same Surface (Normal SPL)
Loudspeaker-Same Surface (Loud SPL)
Plastic Cup:
Loudspeaker-Aerial (Normal SPL)
Loudspeaker-Aerial (Loud SPL)
Loudspeaker-Same Surface (Normal SPL)
Loudspeaker-Same Surface (Loud SPL)
Styrofoam Cup:
Loudspeaker-Aerial (Normal SPL)
Loudspeaker-Aerial (Loud SPL)
Loudspeaker-Same Surface (Normal SPL)
Loudspeaker-Same Surface (Loud SPL)
Glass-Surface Scenario:
Control (No Speech)
Loudspeaker-Aerial (Normal SPL)
Loudspeaker-Aerial (Loud SPL)
