{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9648411","patent":{"patent_number":"US-9648411","title":"Sound processing apparatus and sound processing method","assignee":null,"inventors":[],"filing_date":"2015-01-16T00:00:00.000Z","publication_date":"2017-05-09T00:00:00.000Z","cpc_codes":["H04R","G10L","G10L","H04R","H04R","H04R"],"num_claims":11,"abstract":"An audio matrix formed from absolute amplitude values of coefficients obtained by frequency-transforming an audio signal is generated. The audio matrix is factorized into a basis spectrum and activity matrices. Bases in the basis spectrum matrix are classified into bases concerning a target sound and bases concerning noise. Bases in the activity matrix are classified into bases concerning the target sound and bases concerning the noise. Bases concerning the target sound are obtained from the bases concerning the noise classified from the basis spectrum matrix. A matrix including frequency amplitude values of the target sound is obtained using the bases concerning the target sound classified from the basis spectrum matrix, the bases concerning the target sound and noise classified from the activity matrix, and the obtained bases. The audio signal of the target sound is generated using the matrix."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Sound processing apparatus and sound processing method","description":"An audio matrix formed from absolute amplitude values of coefficients obtained by frequency-transforming an audio signal is generated. The audio matrix is factorized into a basis spectrum and activity","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9648411","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-9648411","citation_suggestion":"Patentable. \"Sound processing apparatus and sound processing method\" (US-9648411). https://patentable.app/patents/US-9648411","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9648411","json":"https://patentable.app/api/llm-context/US-9648411","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:20:24.891Z"}