Table 1

Description of call parameter used in the analysis

Acoustic parameters

Description


Duration [ms]

Time between onset and offset of call


Amplitude gap [ms]

Duration of breaks in amplitude within call


PF start [Hz]

Start frequency of peak frequency


PF max [Hz]

Maximum peak frequency


PF jump [Hz]

Maximum difference of peak frequency between successive bins


PF max loc

Location of PF max in relation to total call duration (1/duration) * location]


PF jump loc

Location of maximum PF jump in relation to total call duration [(1/duration) * location]


Slope of trend

Factor of linear trend of peak frequency


Hammerschmidt et al. BMC Neuroscience 2012 13:40   doi:10.1186/1471-2202-13-40

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