“…Although doing so means the loss of permanent audio records, the gains are considerable: remote acoustic monitoring has potential to revolutionise biodiversity monitoring in signalling ecologically important changes, as well as providing a proxy for biodiversity, over spatio-temporal scales which are currently impossible to assess. However many of the regions of critical ecological importance are remote and without electrical grid, presenting a significant technical challenge to the development of large scale acoustic sensor networks [12]: the current approach of transmitting the raw audio recordings obviates long-term deployment in off-grid locations. Taking inspiration from current trends in network computing, we propose a power-efficient and cost-effective solution which computes indices in situ, vastly reducing the data transmission load and therefore bringing power consumption in line with battery or solar powered remote installation.…”