Fig. 6. Intensity characteristics. (A) Frequency spectra of the acoustic
random-noise stimuli. Intensity was varied in steps of 3 dB over a total range
of 36 dB. `0 dB' (red) depicts the stimulus of lowest intensity, `+36 dB'
(green) the stimulus of highest intensity. (B) Superimposed magnitude
responses of an individual arista tip to the stimuli depicted in A. (C)
Corresponding phase responses. For colour conventions, see A.
vib/air is the response magnitude, where
vib is the vibration velocity and air is the
particle velocity. BN, background noise.
