{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11289113","patent":{"patent_number":"US-11289113","title":"Linear prediction residual energy tilt-based audio signal classification method and apparatus","assignee":null,"inventors":[],"filing_date":"2019-12-20T00:00:00.000Z","publication_date":"2022-03-29T00:00:00.000Z","cpc_codes":["G10L","G10L","G10L","G10L","G10L","G10L","G10L"],"num_claims":20,"abstract":"A linear prediction residual energy tilt-based audio signal classification method and apparatus, where the method includes: determining, according to voice activity of a current audio frame, whether to obtain a linear prediction residual energy tilt of a current audio frame of the current audio frame and store a frequency spectrum fluctuation of the current frame in a frequency spectrum fluctuation memory, where the linear prediction residual energy tilt denotes an extent to which an audio signal's linear prediction residual energy changes as a linear prediction order inscreases; updating, according to whether the audio frame is percussive music or activity of a historical audio frame, frequency spectrum fluctuations stored in the frequency spectrum fluctuation memory; and classifying the current audio frame as a speech frame or a music frame according to statistics of some or all of effective data of the frequency spectrum fluctuations stored in the frequency spectrum fluctuation memory."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Linear prediction residual energy tilt-based audio signal classification method and apparatus","description":"A linear prediction residual energy tilt-based audio signal classification method and apparatus, where the method includes: determining, according to voice activity of a current audio frame, whether t","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11289113","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-11289113","citation_suggestion":"Patentable. \"Linear prediction residual energy tilt-based audio signal classification method and apparatus\" (US-11289113). https://patentable.app/patents/US-11289113","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11289113","json":"https://patentable.app/api/llm-context/US-11289113","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T09:14:56.931Z"}