{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9818424","patent":{"patent_number":"US-9818424","title":"Method and apparatus for suppression of unwanted audio signals","assignee":null,"inventors":[],"filing_date":"2014-05-05T00:00:00.000Z","publication_date":"2017-11-14T00:00:00.000Z","cpc_codes":["G10L","G10L","G10L","G10L","H04M","H04M","G10L"],"num_claims":57,"abstract":"A method, and one or more non-transitory computer-readable media storing instructions, and a device for removal of unwanted components in an audio signal, the device comprising a processor, coupled to memory, configured to receive reference and processed inputs into memory where the processed input is a result of a reduction process of unwanted components of the audio signal, estimate envelope values for processed and reference inputs at a plurality of time and frequency instances, for each time and frequency instance: compute a first gain in relation to a ratio of the estimated envelope value of the processed input to the estimated envelope value of the reference input, apply a nonlinear process to said first gain to produce a second gain, compute an output gain as the ratio between second gain and first gain and, apply the output gain to processed input, thereby producing a filtered output with unwanted components suppressed."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for suppression of unwanted audio signals","description":"A method, and one or more non-transitory computer-readable media storing instructions, and a device for removal of unwanted components in an audio signal, the device comprising a processor, coupled to","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9818424","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-9818424","citation_suggestion":"Patentable. \"Method and apparatus for suppression of unwanted audio signals\" (US-9818424). https://patentable.app/patents/US-9818424","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9818424","json":"https://patentable.app/api/llm-context/US-9818424","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T10:23:18.110Z"}