Published June 30, 2015
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Fig. 1 in Identification of Sound-Producing Hydrophilid Beetles (Coleoptera: Hydrophilidae) in Underwater Recordings Using Digital Signal Processing
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Fig. 1. Each graph is a frequency plot of a one half-second exemplar sound clip. One exemplar call from each species and an exemplar distress call from an individual Tropisternus blatchleyi (that is indicative of all four beetles' distress calls) is shown transformed into the frequency domain using the fast fourier transformation with normalized amplitudes and plotted from 0–10,000 Hz.
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- Journal article: 10.1649/0010-065X-69.2.305 (DOI)
- Journal article: urn:lsid:plazi.org:pub:8E00FF94FFDFF670FF97904DFFBAFFAA (LSID)
- Journal article: https://zenodo.org/record/5332337 (URL)