Baseline Widely available
AudioBufferSourceNode()
ã³ã³ã¹ãã©ã¯ã¿ã¼ã¯ãæ°ãã AudioBufferSourceNode
ãªãã¸ã§ã¯ãã¤ã³ã¹ã¿ã³ã¹ãçæãã¾ãã
new AudioBufferSourceNode(context, options)
弿°
context
AudioContext
ã¸ã®åç
§ã
options
çç¥å¯
以ä¸ã®ãªãã·ã§ã³ã§ãã
buffer
åçããã AudioBuffer
ã®ã¤ã³ã¹ã¿ã³ã¹ã
detune
é³å£°ã¹ããªã¼ã ã®ã¬ã³ããªã³ã°é度ã調æ´ããããã®ã»ã³ãåä½ã®å¤ãå
¬ç§°ç¯å²ã¯ï¼-â ãã +âï¼ã§ããæ¢å®ã§ã¯ 0
ã§ãã
loop
è«çå¤ã§ãé³å£°ãã«ã¼ãåçããããã©ããã示ãã¾ãã æ¢å®å¤ã¯ false
ã§ããã«ã¼ããåçä¸ã«åçã«å¤æ´ãããå ´åãæ°ããå¤ã¯é³å£°ã®æ¬¡ã®å¦çãããã¯ã«åæ ããã¾ãã
loopEnd
ãªãã·ã§ã³ã§ã loop 屿§ã true
ã§ããå ´åã«ã«ã¼ããçµäºãããå¤ãç§åä½ã§æå®ãã¾ããæ¢å®ã§ã¯ 0
ã§ãããã®å¤ã¯ãã«ã¼ãã®ä¸èº«ã¨ã¯é¢ä¿ããã¾ãããã«ã¼ããæ§æãããµã³ãã«ãã¬ã¼ã ã¯ã loopStart
ãã loopEnd
-(1/sampleRate
) ã¾ã§ã®å¤ã§å®è¡ããã¾ãããã®å¤ã¯ 0 ãããããã¡ã¼ã®æç¶æéã®éã«è¨å®ããã®ãè³¢æã§ãããã loopEnd
ã 0 ãããå°ãããã°ãã«ã¼ã㯠0 ã§çµããããã loopEnd
ããããã¡ã¼ã®æç¶æéããã大ãããã°ãã«ã¼ãã¯ãããã¡ã¼ã®çµç«¯ã§çµäºãã¾ãããã®å±æ§ã¯ããããã¡ã¼ã®ãµã³ãã«ã¬ã¼ããæããæãè¿ãæ´æ°å¤ã«ä¸¸ãããã¨ã§ããããã¡ã¼å
ã®æ£ç¢ºãªãµã³ãã«ãã¬ã¼ã ãªãã»ããã«å¤æããã¾ãããã®ããããã®å±æ§ã®åä½ã¯ playbackRate
弿°ã®å¤ã«ã¯ä¾åãã¾ããã
loopStart
ãªãã·ã§ã³ã§ã loop 屿§ã true
ã®å ´åã«ã«ã¼ããå§ããå¤ãç§åä½ã§æå®ãã¾ããæ¢å®ã§ã¯ 0
ã§ãã0 ã¨ãããã¡ã¼ã®æç¶æéã®éã®å¤ã«è¨å®ããã®ãè³¢æã§ãããã loopStart
ã 0 ãããå°ããå ´åãã«ã¼ã㯠0 ããå§ã¾ãã¾ãããã loopStart
ããããã¡ã¼ã®æç¶æéããã大ããå ´åãã«ã¼ãã¯ãããã¡ã¼ã®çµããããå§ã¾ãã¾ãããã®å±æ§ã¯ããããã¡ã¼ã®ãµã³ãã«ã¬ã¼ããæããæãè¿ãæ´æ°å¤ã«ä¸¸ãããã¨ã§ããããã¡ã¼å
ã®æ£ç¢ºãªãµã³ãã«ãã¬ã¼ã ãªãã»ããã«å¤æããã¾ãããã®ããããã®å±æ§ã®åä½ã¯ playbackRate
弿°ã®å¤ã«ã¯ä¾åãã¾ããã
playbackRate
é³å£°ã¹ããªã¼ã ãã¬ã³ããªã³ã°ããé度ãæå®ãã¾ããæ¢å®å¤ã§ã¯ 1
ã§ãããã®å¼æ°ã¯ k-rate ã§ããé¢èª¿ã¨ã®è¤å弿°ã§ããå
¬ç§°ç¯å²ã¯ï¼-â ãã +âï¼ã§ãã
channelCount
ãã¼ãã¸ã®ä»»æã®å
¥åã¸ã®æ¥ç¶ãã¢ããããã·ã³ã°ããã³ãã¦ã³ããã·ã³ã°ããéã«ä½¿ç¨ããããã£ã³ãã«æ°ã決å®ããããã«ä½¿ç¨ãããæ´æ°ã表ãã¾ããï¼è©³ç´°ã¯ AudioNode.channelCount
ãåç
§ãï¼ä½¿ç¨æ¹æ³ã¨æ£ç¢ºãªå®ç¾©ã¯ã channelCountMode
ã®å¤ã«ä¾åãã¾ãã
channelCountMode
ãã¼ãã®å
¥åºåéã§ãã£ã³ãã«ãä¸è´ãããæ¹æ³ãè¨è¿°ããåæåã®å¤ã表ãã¾ããï¼æ¢å®å¤ãå«ã詳細æ
å ±ã¯ AudioNode.channelCountMode
ãåç
§ãã¦ãã ãããï¼
channelInterpretation
ãã£ã³ãã«ã®æå³ã表ç¾ããåæå¤ãè¨è¿°ãã¾ãããã®è§£éã«ãããé³å£°ã®ã¢ããããã·ã³ã°ããã³ãã¦ã³ããã·ã³ã°ãã©ã®ããã«è¡ãããããå®ç¾©ããã¾ãã使ç¨å¯è½ãªå¤ã¯ "speakers"
ã¾ã㯠"discrete"
ã§ããï¼æ¢å®å¤ã§è¨è¼ãããè©³ç´°ãªæ
å ±ã¯ AudioNode.channelCountMode
ãåç
§ãã¦ãã ãããï¼
æ°ãã AudioBufferSourceNode
ãªãã¸ã§ã¯ãã¤ã³ã¹ã¿ã³ã¹ã§ãã
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