Baseline Widely available
createChannelMerger()
㯠BaseAudioContext
ã¤ã³ã¿ã¼ãã§ã¤ã¹ã®ã¡ã½ããã§ã ChannelMergerNode
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ã¡ã¢: ChannelMergerNode()
ã³ã³ã¹ãã©ã¯ã¿ã¼ã¯ ChannelMergerNode
ã使ããããã®æ¨å¥¨ãããæ¹æ³ã§ãã AudioNode ã®ä½æãåç
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createChannelMerger(numberOfInputs)
弿°
numberOfInputs
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ChannelMergerNode
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ã«å¦çããæ¹æ³ã示ãã¦ãã¾ããããã使ãã«ã¯ã AudioNode.connect(AudioNode)
ã¡ã½ããã®ç¬¬ 2ã第 3 弿°ã使ã£ã¦ãæ¥ç¶å
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const ac = new AudioContext();
ac.decodeAudioData(someStereoBuffer, (data) => {
const source = ac.createBufferSource();
source.buffer = data;
const splitter = ac.createChannelSplitter(2);
source.connect(splitter);
const merger = ac.createChannelMerger(2);
// å·¦ãã£ã³ãã«ã®ããªã¥ã¼ã ã®ã¿å°ãããã
const gainNode = ac.createGain();
gainNode.gain.setValueAtTime(0.5, ac.currentTime);
splitter.connect(gainNode, 0);
// ã¹ããªãã¿ã¼ããã¼ã¸ã£ã¼ã® 2 çªç®ã®å
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// ã¹ãã¬ãªã¤ã¡ã¼ã¸ãå転ãã¾ãã
gainNode.connect(merger, 0, 1);
splitter.connect(merger, 1, 0);
const dest = ac.createMediaStreamDestination();
// ChannelMergerNode ã使ã£ã¦ããã®ã§ãã¹ãã¬ãªã® MediaStream ã
// ã§ãã¾ãããããã§ã¦ã§ããªã¼ãã£ãªã°ã©ãã WebRTC ã MediaRecorder ãªã©ã«
// ãã¤ãããã®ã«ä½¿ãã¾ãã
merger.connect(dest);
});
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