01121nas a2200145   4500008004100000245010500041210006900146520061600215653002500831653002100856653001800877653002100895653002000916856003900936       2017                        eng d00aThe calculation of acoustic indices derived from long-duration recordings of the natural environment0 acalculation of acoustic indices derived from longduration record3 a<p>The work described in this technical report is part of ongoing research within the QUT Ecoacoustics Research Group to build practical tools for the manipulation, analysis and visualisation of recordings of the natural environment. This report describes methods we use to calculate spectral and summary acoustic indices derived from recordings of the environment. A spectral index is a vector of N values, one for each frequency bin of the spectrogram. A summary index is a scalar value, in some cases derived directly from the waveform envelope and in other cases from the corresponding spectral index.</p>
10aacoustic environment10aacoustic indices10aeco-acoustics10aspectral indices10asummary indices  uhttps://eprints.qut.edu.au/110634/