{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8538035","patent":{"patent_number":"US-8538035","title":"Multi-microphone robust noise suppression","assignee":null,"inventors":[],"filing_date":"2010-07-08T00:00:00.000Z","publication_date":"2013-09-17T00:00:00.000Z","cpc_codes":["H04R","G10L","G10L","G10L","G10L"],"num_claims":15,"abstract":"A robust noise reduction system may concurrently reduce noise and echo components in an acoustic signal while limiting the level of speech distortion. The system may receive acoustic signals from two or more microphones in a close-talk, hand-held or other configuration. The received acoustic signals are transformed to frequency domain sub-band signals and echo and noise components may be subtracted from the sub-band signals. Features in the acoustic sub-band signals are identified and used to generate a multiplicative mask. The multiplicative mask is applied to the noise subtracted sub-band signals and the sub-band signals are reconstructed in the time domain."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Multi-microphone robust noise suppression","description":"A robust noise reduction system may concurrently reduce noise and echo components in an acoustic signal while limiting the level of speech distortion. The system may receive acoustic signals from two ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8538035","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-8538035","citation_suggestion":"Patentable. \"Multi-microphone robust noise suppression\" (US-8538035). https://patentable.app/patents/US-8538035","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8538035","json":"https://patentable.app/api/llm-context/US-8538035","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T17:08:40.602Z"}