{"id":115540,"date":"2024-05-04T19:52:06","date_gmt":"2024-05-04T17:52:06","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/osnovatel-qemu-i-ffmpeg-opublikoval-zvukovoj-kodek-tsac"},"modified":"2024-05-04T19:52:06","modified_gmt":"2024-05-04T17:52:06","slug":"osnovatel-qemu-i-ffmpeg-opublikoval-zvukovoj-kodek-tsac","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/news\/osnovatel-qemu-i-ffmpeg-opublikoval-zvukovoj-kodek-tsac","title":{"rendered":"The founder of QEMU and FFmpeg has published the TSAC audio codec","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

French mathematician Fabrice Bellard, who once founded the QEMU, FFmpeg, BPG, QuickJS, TinyGL, and TinyCC projects, has published the TSAC audio encoding format and accompanying tools for compressing and unpacking audio files. The format is designed for data transmission at very low bitrates, for instance, 5.5 kb\/s for mono and 7.5 kb\/s for stereo, while maintaining acceptable quality for music and speech. Using TSAC allows packing a 3.5-minute music piece at a 44.1 kHz sampling rate (stereo) into a file sized 192 KB, which will be almost indistinguishable from the original to the untrained ear. The project's code is distributed under the MIT license. <\/p>\n

Si\u00e7 u p\u00ebrdor si baz\u00eb p\u00ebr krijimin e TSAC, \u00ebsht\u00eb p\u00ebrdorur kodeku audio Descript, i cili \u00ebsht\u00eb zgjeruar p\u00ebr t\u00eb mb\u00ebshtetur tingullin n\u00eb stereo dhe \u00ebsht\u00eb transferuar n\u00eb nj\u00eb model tjet\u00ebr t\u00eb m\u00ebsimit t\u00eb makinerive bazuar n\u00eb nj\u00eb rrjet neuronik me arkitektur\u00eb \"transformer\", e cila ka lejuar rritjen e shkall\u00ebs s\u00eb kompresimit p\u00ebrmes rekonstrukcionit t\u00eb detajeve t\u00eb humbura n\u00eb p\u00ebrputhje me modelin e perceptimit t\u00eb d\u00ebgjimit t\u00eb njeriut. Modeli z\u00eb rreth 200 MB n\u00eb form\u00eb t\u00eb kompresuar dhe \u00ebsht\u00eb strukturuar n\u00eb nj\u00eb p\u00ebrfaq\u00ebsim deterministik, i cili garanton marrjen e t\u00eb nj\u00ebjtit rezultat pavar\u00ebsisht CPU\/GPU q\u00eb p\u00ebrdoren dhe numrit t\u00eb rrjedhave t\u00eb angazhuara n\u00eb llogaritje. <\/p>\n

The encoder can work using only the CPU for computations (AVX2 instructions are supported for acceleration), but to achieve high performance, it is recommended to use the GPU. In its current form, CUDA API can be employed for acceleration using NVIDIA GPUs based on Ampere, ADA, and Hopper microarchitectures (RTX 3090, RTX 4090, RTX A6000, A100, and H100), which have at least 4 GB of video memory. FFmpeg is used to convert audio files before encoding.

originalstereo 6.21 kb\/smono 4.71 kb\/sstereo 2.57 kb\/s<\/center> <\/p>\n

Gjithashtu, mund t\u00eb p\u00ebrmendim azhurnimin e utilitarit ts_zip, t\u00eb zhvilluar nga Bellar, i cili ka p\u00ebr q\u00ebllim kompresimin efektiv t\u00eb t\u00eb dh\u00ebnave tekstuale, duke p\u00ebrdorur mekanizmin e parashikimit t\u00eb token\u00ebve bazuar n\u00eb sistemin e m\u00ebsimit t\u00eb makin\u00ebs dhe modelin e madh gjuh\u00ebsor RWKV 169M v4. Gjat\u00eb kompresimit t\u00eb arkiv\u00ebs s\u00eb Wikipedia, utilitari ts_zip arriti t\u00eb kompresonte t\u00eb dh\u00ebnat n\u00eb 7.3 her\u00eb, nd\u00ebrsa p\u00ebr kompresimin e kodit t\u00eb b\u00ebrtham\u00ebs Linux 1.2 \u2014 n\u00eb 7.8 her\u00eb. P\u00ebr krahasim, nivelet e kompresimit duke p\u00ebrdorur utilitarin xz sh\u00ebnuan 4.7 dhe 5.5 her\u00eb, respektivisht. \u00c7mimi i efikasitetit t\u00eb lart\u00eb t\u00eb kompresimit \u00ebsht\u00eb shpejt\u00ebsia e ul\u00ebt e kompresimit dhe k\u00ebrkesat e larta ndaj resurset (minimum 4 GB RAM). N\u00eb nj\u00eb sistem me GPU RTX 4090, performanca e kompresimit \u00ebsht\u00eb rreth 1 MB\/s.
\n
Burimi: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0424\u0440\u0430\u043d\u0446\u0443\u0437\u0441\u043a\u0438\u0439 \u043c\u0430\u0442\u0435\u043c\u0430\u0442\u0438\u043a \u0424\u0430\u0431\u0440\u0438\u0441 \u0411\u0435\u043b\u043b\u0430\u0440 (Fabrice Bellard), \u043e\u0441\u043d\u043e\u0432\u0430\u0432\u0448\u0438\u0439 \u0432 \u0441\u0432\u043e\u0451 \u0432\u0440\u0435\u043c\u044f \u043f\u0440\u043e\u0435\u043a\u0442\u044b QEMU, FFmpeg, BPG, QuickJS, TinyGL \u0438 TinyCC, \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b \u0444\u043e\u0440\u043c\u0430\u0442 \u043a\u043e\u0434\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0437\u0432\u0443\u043a\u0430 TSAC \u0438 \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0439 \u0441 \u043d\u0438\u043c \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u0439 \u0434\u043b\u044f \u0441\u0436\u0430\u0442\u0438\u044f \u0438 \u0440\u0430\u0441\u043f\u0430\u043a\u043e\u0432\u043a\u0438 \u0437\u0432\u0443\u043a\u043e\u0432\u044b\u0445 \u0444\u0430\u0439\u043b\u043e\u0432. \u0424\u043e\u0440\u043c\u0430\u0442 \u043e\u0440\u0438\u0435\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u043d \u043d\u0430 \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0443 \u0434\u0430\u043d\u043d\u044b\u0445 \u0441 \u043e\u0447\u0435\u043d\u044c \u043d\u0438\u0437\u043a\u0438\u043c \u0431\u0438\u0442\u0440\u0435\u0439\u0442\u043e\u043c, \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, 5.5 kb\/s \u0434\u043b\u044f \u043c\u043e\u043d\u043e \u0438 7.5 kb\/s \u0434\u043b\u044f \u0441\u0442\u0435\u0440\u0435\u043e, \u043f\u0440\u0438 \u0441\u043e\u0445\u0440\u0430\u043d\u0435\u043d\u0438\u0438 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