{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9659565","patent":{"patent_number":"US-9659565","title":"Method of and apparatus for evaluating intelligibility of a degraded speech signal, through providing a difference function representing a difference between signal frames and an output signal indicative of a derived quality parameter","assignee":null,"inventors":[],"filing_date":"2012-11-15T00:00:00.000Z","publication_date":"2017-05-23T00:00:00.000Z","cpc_codes":["G10L","G10L"],"num_claims":20,"abstract":"The present invention relates to a method of evaluating intelligibility of a degraded speech signal received from an audio transmission system conveying a reference speech signal. The method comprises sampling said reference and degraded signals into reference and degraded signal frames, and forming frame pairs by associating reference and degraded signal frames with each other. For each frame pair a difference function representing disturbance is provided, which is then compensated for specific disturbance types for providing a disturbance density function. Based on the density function of a plurality of frame pairs, an overall quality parameter is determined. The method provides for weighing disturbances in silent periods dependent on the loudness of the reference signal."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method of and apparatus for evaluating intelligibility of a degraded speech signal, through providing a difference function representing a difference between signal frames and an output signal indicative of a derived quality parameter","description":"The present invention relates to a method of evaluating intelligibility of a degraded speech signal received from an audio transmission system conveying a reference speech signal. The method comprises","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9659565","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-9659565","citation_suggestion":"Patentable. \"Method of and apparatus for evaluating intelligibility of a degraded speech signal, through providing a difference function representing a difference between signal frames and an output signal indicative of a derived quality parameter\" (US-9659565). https://patentable.app/patents/US-9659565","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9659565","json":"https://patentable.app/api/llm-context/US-9659565","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:45:56.758Z"}