{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8463614","patent":{"patent_number":"US-8463614","title":"Audio encoding/decoding for reducing pre-echo of a transient as a function of bit rate","assignee":null,"inventors":[],"filing_date":"2009-11-10T00:00:00.000Z","publication_date":"2013-06-11T00:00:00.000Z","cpc_codes":["G10L"],"num_claims":32,"abstract":"An audio encoding method and a corresponding decoding method are provided. Accordingly, the pre-echo effect of the audio transient signal is eliminated and the distortion of the transient signal is mitigated. The technical solution includes performing time-domain processing on an input audio transient signal; dividing sampling points x1,x2, . . . , xN of an input frame into L segments; calculating an energy Ei for each segment; calculating an average energy E0 for each segment of the input frame; calculating a multiplying parameter λi corresponding to each segment by virtue of λi=r(bitrate)*E0/Ei; multiplying the sampling points of all the segments of the input frame by corresponding multiplying parameter λi, obtaining the processed sampling points x1′,x2′, . . . , xN′; and sending the multiplying parameter λi to a code stream for transportation; performing time-frequency transformation and coding on the processed sampling points x1′,x2′, . . . , xN′ and outputting to the code stream."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Audio encoding/decoding for reducing pre-echo of a transient as a function of bit rate","description":"An audio encoding method and a corresponding decoding method are provided. Accordingly, the pre-echo effect of the audio transient signal is eliminated and the distortion of the transient signal is mi","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8463614","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-8463614","citation_suggestion":"Patentable. \"Audio encoding/decoding for reducing pre-echo of a transient as a function of bit rate\" (US-8463614). https://patentable.app/patents/US-8463614","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8463614","json":"https://patentable.app/api/llm-context/US-8463614","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T07:17:04.208Z"}