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terurou id:terurou

Opusã«é–¢ã™ã‚‹terurouã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (6)

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Opusã®éŸ³é‡å‘¨ã‚ŠãŒã¨ã¦ã‚‚ã¤ã‚‰ã„ - Qiita
(ãƒˆãƒ©ãƒƒã‚¯ã‚²ã‚¤ãƒ³) - (ã‚¢ãƒ«ãƒãƒ ã‚²ã‚¤ãƒ³) = -0.54 dB (Q7.8å½¢å¼ã ã¨-138) æ¤œè¨¼ç”¨éŸ³å£°ãƒ•ã‚¡ã‚¤ãƒ«ã¯ã“ã¡ã‚‰ã€‚ ä½œå“ã‚¯ãƒ¬ã‚¸ãƒƒãƒˆ: Lovers in metal by Dong (2004) / CC-BY / æ¤œè¨¼ã«ã‚ãŸã‚Šã‚³ãƒ¼ãƒ‡ãƒƒã‚¯ã‚’å¤‰æ›´ã—ãŸ ã‚±ãƒ¼ã‚¹1. Output gainã‚’ã‚¢ãƒ«ãƒãƒ ã‚²ã‚¤ãƒ³ã¨ã—ã¦-23 LUFSã«æƒãˆã‚‹ Opusã®åˆæœŸä»•æ§˜ã§æƒ³å®šã•ã‚Œã¦ã„ãŸæ–¹æ³•ã§ã™ã€‚ã“ã“ã§ã¯Output gainã«-12.78 dBã‚’ã€R128_TRACK_GAINã«-138ã‚’æŒ‡å®šã™ã‚‹ã“ã¨ã«ãªã‚Šã¾ã™ã€‚ RGã¨Opusã‚²ã‚¤ãƒ³ã§ã¯åŸºæº–ã¨ãªã‚‹ãƒ©ã‚¦ãƒ‰ãƒã‚¹ãŒç•°ãªã‚‹ãŸã‚ã€ã©ã¡ã‚‰ã‹ã«ã‚ªãƒ•ã‚»ãƒƒãƒˆã‚’åŠ ãˆã¦åŸºæº–å€¤ã‚’æƒãˆã‚‹å¿…è¦ãŒã‚ã‚‹ã®ã§ã™ãŒã€foobar2000ã§ã¯Opusã‚²ã‚¤ãƒ³ã‚’RGã«åˆã‚ã›ã‚‹ãŸã‚+5 dBã™ã‚‹ã“ã¨ã§ã“ã‚Œã‚’è§£æ±ºã—ã¦ã„ã¾ã™ã€‚å…·ä½“ä¾‹ã ã¨Output gainãŒ-12.78 dBã«ãªã£ã¦ã„ãŸã‚‰ã‚¢ãƒ«ãƒ
terurou 2017/06/11
Opus

Ogg
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OggOpus - XiphWiki
terurou 2017/06/11
Opus

Ogg
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Opus Recommended Settings - XiphWiki
Recommended Bitrates Depending on the kind of audio you want to encode with Opus, you may want to use different bitrate (quality) settings. The settings in the table below are meant to start you off with a decent tradeoff between good quality and small file size (or bitrate usage, if you're streaming). You should test the suggested bitrate by actually listening to your encoded audio and then: twea
terurou 2017/04/08
Opusã‚¨ãƒ³ã‚³ãƒ¼ãƒ€ãƒ¼æŽ¨å¥¨è¨å®š

Opus
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GitHub - kazuki/opus.js-sample: Javascript Opus Encoder/Decoder, Speexdsp based Resampler and WebAudio Player Sample
terurou 2015/01/09
audio

codec

Opus

javascript
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Opus Codec
Opus Interactive Audio Codec Overview Opus is a totally open, royalty-free, highly versatile audio codec. Opus is unmatched for interactive speech and music transmission over the Internet, but is also intended for storage and streaming applications. It is standardized by the Internet Engineering Task Force (IETF) as RFC 6716 which incorporated techno logy from Skypeâ€™s SILK codec and Xiph.Orgâ€™s CELT
terurou 2015/01/09
audio

codec

Opus
ãƒªãƒ³ã‚¯
Opus (éŸ³å£°åœ§ç¸®) - Wikipedia
Opusï¼ˆã‚ªãƒ¼ãƒ‘ã‚¹ï¼‰ã¨ã¯ã€IETF ã«ã‚ˆã£ã¦é–‹ç™ºã•ã‚Œã€ä¸»ã«ã‚¤ãƒ³ã‚¿ãƒ¼ãƒãƒƒãƒˆä¸Šã§ã®ã‚¤ãƒ³ã‚¿ãƒ©ã‚¯ãƒ†ã‚£ãƒ–ãªç”¨é€”ã«åˆã‚ã›ã¦ä½œã‚‰ã‚ŒãŸéžå¯é€†éŸ³å£°åœ§ç¸®ãƒ•ã‚©ãƒ¼ãƒžãƒƒãƒˆ[3]ã€‚RFCÂ 6716 ã«ã‚ˆã£ã¦æ¨™æº–åŒ–ã•ã‚ŒãŸã‚ªãƒ¼ãƒ—ãƒ³ãƒ•ã‚©ãƒ¼ãƒžãƒƒãƒˆã¨ã—ã¦ã€ãƒªãƒ•ã‚¡ãƒ¬ãƒ³ã‚¹å®Ÿè£…ã¯3æ¡é …BSDãƒ©ã‚¤ã‚»ãƒ³ã‚¹ã®ä¸‹ã§æä¾›ã•ã‚Œã¦ã„ã‚‹ã€‚Opusã‚’ã‚«ãƒãƒ¼ã™ã‚‹ã™ã¹ã¦ã®æ—¢çŸ¥ã®ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢ç‰¹è¨±ã¯ã€ãƒã‚¤ãƒ¤ãƒªãƒ†ã‚£ãƒ•ãƒªãƒ¼ã®æ¡é …ã®ä¸‹ã§ãƒ©ã‚¤ã‚»ãƒ³ã‚¹ã•ã‚Œã¦ã„ã‚‹[4]ã€‚ Opusã¯ã€ã‚¹ãƒ”ãƒ¼ãƒå‘ãã®SILKï¼ˆè‹±èªžç‰ˆï¼‰ã¨ä½Žãƒ¬ã‚¤ãƒ†ãƒ³ã‚·ã§éŸ³æ¥½ç”¨é€”ã«ã‚‚ä½¿ãˆã‚‹CELT ã®2ã¤ã®ã‚³ãƒ¼ãƒ‡ãƒƒã‚¯ã®æŠ€è¡“ã‚’çµ„ã¿è¾¼ã‚“ã§ã„ã‚‹[3]ã€‚Opusã¯ã€ãƒ“ãƒƒãƒˆãƒ¬ãƒ¼ãƒˆã®é«˜ä½Žã‚’ç¶™ãŽç›®ãªãèª¿ç¯€ã§ãã€å†…éƒ¨çš„ã«ã¯ã€ä½Žã„ãƒ“ãƒƒãƒˆãƒ¬ãƒ¼ãƒˆã§ã¯ç·šå½¢äºˆæ¸¬ã‚³ãƒ¼ãƒ‡ãƒƒã‚¯ã€é«˜ãƒ“ãƒƒãƒˆãƒ¬ãƒ¼ãƒˆã§ã¯å¤‰æ›ã‚³ãƒ¼ãƒ‡ãƒƒã‚¯ã‚’ä½¿ã„ã€é€”ä¸ã§åˆ‡ã‚Šæ›¿ãˆã‚‹ã“ã¨ã‚‚å¯èƒ½ã§ã‚ã‚‹ï¼ˆçŸæ™‚é–“ã¯ãƒã‚¤ãƒ–ãƒªãƒƒãƒ‰ã§ã‚ªãƒ¼ãƒãƒ¼ãƒ©ãƒƒãƒ—ã•ã›ã‚‰ã‚Œã‚‹ï¼‰ã€‚Opusã¯ä¼šè©±ã€ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ä¸Šã®éŸ³æ¥½å…¬æ¼”ã‚„
terurou 2013/07/30
Opusã£ã¦ã„ã†ã‚³ãƒ¼ãƒ‡ãƒƒã‚¯ã‚’ä»Šã¯ã˜ã‚ã¦çŸ¥ã£ãŸã€‚æ¯”è¼ƒçš„æ–°ã—ã„ã‚„ã¤ãªã®ã‹

Opus

VoIP

Ogg

audio
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