spacer gif spacer gif spacer gif spacer gif spacer gif
QUICK SEARCH:   [advanced]


spacer gif
     Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents    

Right arrow Help viewing high resolution images
Right arrow Return to article

(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.


Figure 6


Fig. 6. Calculated influence of the stimulus filters and the roving level on the frequency centroid and the level of the recorded calls (mean ± s.d. of 9500 calls for Bat 4 and 15055 calls for Bat 5). (A) The stimulus filters, going from lowpass (–6 dB/octave) to highpass (+6 dB/octave), increased the frequency centroid of the recorded calls by about 5 kHz. (B) The stimulus filters, going from lowpass (–6 dB/octave) to highpass (+6 dB/octave), increased the r.m.s. level of the recorded calls by 2–3 dB SPL. (C) Increasing roving levels, i.e. higher overall levels, reduced the frequency centroid of the recorded calls by about 2 kHz.





Right arrow Return to article