Fig. 4From: The Huánuco Pampa acoustical field survey: an efficient, comparative archaeoacoustical method for studying sonic communication dynamicsPower spectrum of the Lobatus galeatus (Strombus) pututu source from the Huánuco Pampa acoustical survey. Frequency (x-axis) is plotted logarithmically (as per auditory perception), against amplitude (in dB-FS, y-axis)Back to article page