SIMD Optimized LAME Encoderã“ã®ãƒšãƒ¼ã‚¸ã§ã¯ã€AltiVec/SSE/NEONを使ã£ã¦PowerPC/Intel/ARMå‘ã‘ã«æœ€é©åŒ–ã—ãŸLAME (ãƒã‚¤ãƒŠãƒª/パッãƒ) ã‚’é…布ã—ã¦ã„ã¾ã™ã€‚ ã“ã‚Œã¯ãªã«? LAMEã¯ã‚ªãƒ¼ãƒ—ンソースã®é«˜å“質ãªmp3エンコーダã§ã™ã€‚æ•°ã‚ã‚‹mp3エンコーダã®ä¸ã§æœ€ã‚‚å“質ãŒè‰¯ã„ã¨ã•ã‚Œã¦ã„ã¾ã™ã€‚ ã“ã“ã«ã‚ã‚‹ã®ã¯ARM/Intel/G3/G4/G5プãƒã‚»ãƒƒã‚µå‘ã‘ã«æœ€é©åŒ–ã‚’è¡Œã£ãŸLAMEã§ã€å…¬å¼ã«é…布ã•ã‚Œã¦ã„るソースコードをコンパイルã—ãŸã‚‚ã®ã‚ˆã‚Šé€Ÿããªã£ã¦ã„ã¾ã™ã€‚ãªãŠã€lameã®ãƒ•ãƒãƒ³ãƒˆã‚¨ãƒ³ãƒ‰ã®ã¿ã§ãƒ©ã‚¤ãƒ–ラリ類ã¯å…¥ã£ã¦ã„ã¾ã›ã‚“。 音æºã«ã‚ˆã£ã¦ã¯éžæœ€é©åŒ–版ã¨ã¯å¾®å¦™ã«ã‚¨ãƒ³ã‚³ãƒ¼ãƒ‰çµæžœãŒç•°ãªã‚‹ã“ã¨ãŒã‚ã‚Šã¾ã™ãŒã€ã“ã‚Œã¯ä¸»ã«AltiVecã®VFPUã¨é€šå¸¸ã®FPUã®å†…部演算精度ã®é•ã„やアルゴリズムã®å¤‰æ›´ç‰ã«ã‚ˆã‚‹ã‚‚ã®ã§ã™ã€‚音質ã«å½±éŸ¿ã™ã‚‹ã“ã¨ã¯ã¾ãšç„¡ã„ã¨æ€ã„ã¾ã™ãŒã€å¿ƒé…ãªäººã¯æ³¢å½¢ç·¨é›†ãƒ„ール(Audacityç‰)ã§é€†ç›¸è¶³ã—
https://jp.techcrunch.com/2010/04/07/20100406how-dirty-mp3-files-are-a-back-door-into-cloud-drm/
Google Code Archive - Long-term storage for Google Code Project Hosting.
Great flash MP3 and FLV player by Jeroen Wijering
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