{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11495244","patent":{"patent_number":"US-11495244","title":"Voice modification detection using physical models of speech production","assignee":null,"inventors":[],"filing_date":"2019-04-04T00:00:00.000Z","publication_date":"2022-11-08T00:00:00.000Z","cpc_codes":["G10L","G10L","G10L","G10L","G10L","G10L","H04M","H04M"],"num_claims":18,"abstract":"A computer may train a single-class machine learning using normal speech recordings. The machine learning model or any other model may estimate the normal range of parameters of a physical speech production model based on the normal speech recordings. For example, the computer may use a source-filter model of speech production, where voiced speech is represented by a pulse train and unvoiced speech by a random noise and a combination of the pulse train and the random noise is passed through an auto-regressive filter that emulates the human vocal tract. The computer leverages the fact that intentional modification of human voice introduces errors to source-filter model or any other physical model of speech production. The computer may identify anomalies in the physical model to generate a voice modification score for an audio signal. The voice modification score may indicate a degree of abnormality of human voice in the audio signal."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Voice modification detection using physical models of speech production","description":"A computer may train a single-class machine learning using normal speech recordings. The machine learning model or any other model may estimate the normal range of parameters of a physical speech prod","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11495244","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-11495244","citation_suggestion":"Patentable. \"Voice modification detection using physical models of speech production\" (US-11495244). https://patentable.app/patents/US-11495244","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11495244","json":"https://patentable.app/api/llm-context/US-11495244","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T14:38:16.956Z"}