Baseline Widely available
offset
㯠ConstantSourceNode
ã¤ã³ã¿ã¼ãã§ã¤ã¹ã®èªã¿åãå°ç¨ããããã£ã§ã AudioParam
ãªãã¸ã§ã¯ããè¿ããæ°å¤ã§ a-rate å¤ã示ãã¾ããããã¯ã½ã¼ã¹ããæ¬¡ã®ãµã³ãã«ãåãåºãéã«å¸¸ã«è¿ããã¾ãã
ã¡ã¢: offset
ã¨ããååã® AudioParam
ã¯èªã¿åãå°ç¨ã§ããããã®ä¸ã® value
ããããã£ã¯èªã¿åãå°ç¨ã§ã¯ããã¾ããããã®ããã offset
ã®å¤ã¯ ConstantSourceNode.offset.value
ã®å¤ãè¨å®ãããã¨ã§å¤æ´ãããã¨ãã§ãã¾ãã
myConstantSourceNode.offset.value = newValue;
å¤
ãã®ãã¼ãããµã³ãã«ãã¨ã«è¿ã a-rate å¤ã示ã AudioParam
ãªãã¸ã§ã¯ãã§ããæ¢å®å¤ã¯ 1.0 ã§ãã
offset
ã®ç¾å¨ã®å¤ã«ã¢ã¯ã»ã¹ããã«ã¯ãä¸ã®æ§æããã¯ã¹ã§ç¤ºããããã«ã value
ããããã£ã«ã¢ã¯ã»ã¹ãã¦ãã ããã
ãã®ä¾ã§ã¯ã ConstantSourceNode
ãè¨å®ãã¦ããã® offset
ã GainNode
ã®ãã¢ã®å
¥åã¨ãã¦ä½¿ç¨ããæ¹æ³ã示ãã¾ãããã®ä¾ã¯ ConstantSourceNode ã«ããè¤æ°ã®å¼æ°ã®å¶å¾¡ ã«ãããå®å
¨ãªä¾ãå
ã«ãã¦ä½æããã¦ãã¾ãã
gainNode2 = context.createGain();
gainNode3 = context.createGain();
gainNode2.gain.value = gainNode3.gain.value = 0.5;
volumeSliderControl.value = gainNode2.gain.value;
constantSource = context.createConstantSource();
constantSource.connect(gainNode2.gain);
constantSource.connect(gainNode3.gain);
ã¾ããã²ã¤ã³ãã¼ãã使ãã¦è¨å®ããã¹ã©ã¤ãã¼ã³ã³ããã¼ã«ã®å¤ã 2 ã¤ã®ãã¼ãã®ã²ã¤ã³ã¨ä¸è´ããããã«è¨å®ãã¾ããæ¬¡ã«ãæ°ãã ConstantSourceNode
ã使ããããã 2 ã¤ã®ã²ã¤ã³ãã¼ãã® GainNode.gain
å¤ã®ã½ã¼ã¹ã¨ãã¾ãããããã®å¤ã¯ããããAudioParam
ã§ãããã¾ãã
ä¾ãã°ã 2 ã¤ã®ã²ã¤ã³ãã¼ãã®å¤ã夿´ãã¦å¿çããå¿
è¦ã®ããã¤ãã³ããã³ãã©ã¼ï¼ãã®å ´å㯠click
ã¤ãã³ãç¨ï¼ãããã¨ãã¾ããä¸è¨ã®ãªã³ã¯ãããã¨ããã§ããã®åç´ãªã¤ãã³ããã³ãã©ã¼ã使ç¨ãã¦ããããè¡ããã¨ãã§ãã¾ãã
function handleClickEvent(event) {
constantSource.offset.value = volumeSliderControl.value;
}
ãã®é¢æ°ãããªããã°ãªããªããã¨ã¯ããã¢ãã¼ãã®ã²ã¤ã³ãå¶å¾¡ããããã«ä½¿ç¨ãã¦ããã¹ã©ã¤ãã¼ã³ã³ããã¼ã«ã®ç¾å¨ã®å¤ãåå¾ãã¦ããã®å¤ã ConstantSourceNode
ã® offset
ã«æ ¼ç´ãããã¨ã®ã¿ã§ããããã¯ããã® AudioParam.value
ããããã£ã®ä¸èº«ã夿´ãããã¨ã§è¡ããã¾ãã 2 ã¤ã®ã²ã¤ã³ãã¼ãã¯ãã°ããæ°ããããªã¥ã¼ã ã¬ãã«ãæ¡ç¨ãã¾ãã
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