{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11483663","patent":{"patent_number":"US-11483663","title":"Audio processing device and a method for estimating a signal-to-noise-ratio of a sound signal","assignee":null,"inventors":[],"filing_date":"2020-11-05T00:00:00.000Z","publication_date":"2022-10-25T00:00:00.000Z","cpc_codes":["G10L","H04R","H04R","H04R","G10L"],"num_claims":26,"abstract":"A hearing aid includes a) at least one input unit for providing a time-frequency representation Y(k,n) of an electric input signal representing sound consisting of target speech and noise signal components, where k and n are frequency band and time frame indices, respectively, b) a noise reduction system configured to b1) determine an a posteriori signal to noise ratio estimate γ(k,n) of the electric input signal, and to b2) determine an a priori signal to noise signal ratio estimate ζ(k,n) of the electric input signal from the a posteriori signal to noise ratio estimate γ(k,n) based on a recursive algorithm providing non-linear smoothing. The a posteriori signal to noise ratio estimate of said electric input signal is provided as a mixture of first and second different a posteriori signal to noise ratio estimates. The invention may be used in audio processing devices, such as hearing aids, headsets, etc."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Audio processing device and a method for estimating a signal-to-noise-ratio of a sound signal","description":"A hearing aid includes a) at least one input unit for providing a time-frequency representation Y(k,n) of an electric input signal representing sound consisting of target speech and noise signal compo","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11483663","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-11483663","citation_suggestion":"Patentable. \"Audio processing device and a method for estimating a signal-to-noise-ratio of a sound signal\" (US-11483663). https://patentable.app/patents/US-11483663","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11483663","json":"https://patentable.app/api/llm-context/US-11483663","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T03:14:24.950Z"}