{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9838819","patent":{"patent_number":"US-9838819","title":"Reducing correlation between higher order ambisonic (HOA) background channels","assignee":null,"inventors":[],"filing_date":"2015-07-01T00:00:00.000Z","publication_date":"2017-12-05T00:00:00.000Z","cpc_codes":["H04S","G10L","H04R","H04S","H04S"],"num_claims":40,"abstract":"In general, techniques are described for compression and decoding of audio data are generally disclosed. An example device for compressing audio data includes one or more processors configured to apply a decorrelation transform to ambient ambisonic coefficients to obtain a decorrelated representation of the ambient ambisonic coefficients, the ambient HOA coefficients having been extracted from a plurality of higher order ambisonic coefficients and representative of a background component of a soundfield described by the plurality of higher order ambisonic coefficients, wherein at least one of the plurality of higher order ambisonic coefficients is associated with a spherical basis function having an order greater than one."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Reducing correlation between higher order ambisonic (HOA) background channels","description":"In general, techniques are described for compression and decoding of audio data are generally disclosed. An example device for compressing audio data includes one or more processors configured to appl","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9838819","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-9838819","citation_suggestion":"Patentable. \"Reducing correlation between higher order ambisonic (HOA) background channels\" (US-9838819). https://patentable.app/patents/US-9838819","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9838819","json":"https://patentable.app/api/llm-context/US-9838819","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T13:55:37.333Z"}