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В кластер входят документы, посвященные конкретно формату MP3, и не входят документы об общей истории сжатия данных без привязки к этому формату.
Общие признаки: формат MP3, патенты и правовые аспекты, создание и развитие формата
Группа выше: Носители и форматы
Смысл: The main idea is that the expiration of MP3 patents has removed legal barriers for software and hardware developers, while the format's success is attributed to its efficient use of psychoacoustics to balance audio quality and file size.
As of April 2017, all MP3 patents have expired, making the format officially free and facilitating its integration into open-source software.
Смысл: The main idea is that the invention of MP3 was not the work of a single individual but a result of simultaneous independent discoveries and a subsequent collaboration between James D. Johnston and Karlheinz Brandenburg, though corporate failure and aggressive marketing led to Johnston being erased from popular history.
James D. Johnston independently co-invented the MP3 technology and the foundations of digital audio compression, but his legacy was overshadowed by corporate mismanagement at AT&T and the marketing of the Fraunhofer Institute.