{"id":{"repo_id":"exeter","oai_identifier":"oai:figshare.com:article/32907479"},"canonical_url":"https://search.dev.ndltd.org/etd/exeter/oai:figshare.com:article/32907479","repository":{"repo_id":"exeter","name":"University of Exeter","base_url":"https://api.figshare.com/v2/oai"},"display":{"title":"Audio for Flow Monitoring in Wastewater","abstract":"Digitalisation can greatly improve process control in wastewater systems but requires increased sensing and monitoring that can provide actionable information. Audio is underutilised as a sensor input despite fluid flow naturally generating sound through different physical processes. This thesis investigates low-cost non-invasive microphones for flow monitoring, laying the groundwork with a qualitative interview study of barriers and opportunities in the wastewater industry before deploying microphones in three fluid flow applications of increasing complexity. 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High accuracy is achieved with either linear or machine learning-based predictive models, and it is shown that the audio characteristics of importance are dependent on the application.&lt;p&gt;&lt;/p&gt;","abstract_has_math":false,"creators":["Jess Holland (21042506)"],"institution":null,"degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2026,"date_issued":"2026-07-20T00:00:00Z","date_published":"2026-07-20T00:00:00Z","updated_at":"2026-07-27T19:32:17Z","subjects":["audio","audio-based monitoring","audio-based sensing","contact microphones","digitalisation","flow monitoring","monitoring","process monitoring","sensing","sensors","sewage collection","wastewater","wastewater industry","wastewater monitoring","wastewater treatment plant"],"languages":[],"rights":["All rights reserved"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["10779/exe.32907479.v1"],"render_values":[{"text":"10779/exe.32907479.v1","href":null,"code":true}]}]},"links":{"outbound_url":null,"outbound_label":null,"outbound_source":null},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Jess Holland (21042506)"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2026-07-20T00:00:00Z"]},{"key":"dc:relation","label":"Dc Relation","values":["https://figshare.com/articles/thesis/Audio_for_Flow_Monitoring_in_Wastewater/32907479"]},{"key":"dc:type","label":"Dc Type","values":["Text","Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["audio","audio-based monitoring","audio-based sensing","contact microphones","digitalisation","flow monitoring","monitoring","process monitoring","sensing","sensors","sewage collection","wastewater","wastewater industry","wastewater monitoring","wastewater treatment plant"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:rights","label":"Dc Rights","values":["All rights reserved"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["10779/exe.32907479.v1"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Digitalisation can greatly improve process control in wastewater systems but requires increased sensing and monitoring that can provide actionable information. 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