{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9736584","patent":{"patent_number":"US-9736584","title":"Hybrid test tone for space-averaged room audio calibration using a moving microphone","assignee":null,"inventors":[],"filing_date":"2015-07-21T00:00:00.000Z","publication_date":"2017-08-15T00:00:00.000Z","cpc_codes":["H04R","G06F","H04R","H04R","H04R","H04R","H04R","H04R","H04S","H04S","H04R"],"num_claims":30,"abstract":"An example implementation may involve a playback device receiving a command that instructs the playback device to emit a calibration sound and responsively causing one or more speakers to emit a periodic calibration sound that covers a calibration frequency range. The periodic calibration sound may include (i) a first component that includes noise at frequencies between a minimum of the calibration frequency range and a first threshold frequency, and (ii) a second component that sweeps through frequencies between a second threshold frequency and a maximum of the calibration frequency range."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Hybrid test tone for space-averaged room audio calibration using a moving microphone","description":"An example implementation may involve a playback device receiving a command that instructs the playback device to emit a calibration sound and responsively causing one or more speakers to emit a perio","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9736584","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9736584","citation_suggestion":"Patentable. \"Hybrid test tone for space-averaged room audio calibration using a moving microphone\" (US-9736584). https://patentable.app/patents/US-9736584","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9736584","json":"https://patentable.app/api/llm-context/US-9736584","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T11:40:50.381Z"}