Acoustic Complexity Index (ACI)
Benchmark Value
Scoring Curve
This curve shows how a field measurement for this indicator would score across all available benchmark forms in this context. The scoring engine uses 2 benchmarks together — the OptimalRange form drives the primary score, while 1 guard(s) constrain the result.
Contributing Benchmarks
Evidence & Context
Public Land (National Park): Mean ACI of 135.2
Mean spectrogram complexity based on frequency bins (1–11 kHz), calculated from 10-minute daily 95th percentile values across public conservation land.
Reference-condition target point for acoustic complexity in undisturbed public conservation land in Southeastern Australia.
Defines the absolute mean regional reference point for undisturbed forest soundscapes in Victoria.
Sources (1)
A Report on a Community Partnership in Eco-Acoustic Monitoring in Brisbane Ranges
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